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<title>Algorithms_in_C++: machine_learning/ordinary_least_squares_regressor.cpp File Reference</title>
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<div id="projectname">Algorithms_in_C++<span id="projectnumber"> 1.0.0</span>
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<div id="projectbrief">Set of algorithms implemented in C++.</div>
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/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */
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@@ -202,25 +202,25 @@ template<typename T > </div>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>fitted regression model polynomial coefficients </dd></dl>
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<div class="fragment"><div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> {</div>
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<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span> <span class="comment">// NxF</span></div>
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<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<T></a>> X2 = X;</div>
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<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < X2.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); i++) {</div>
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<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> <span class="comment">// add Y-intercept -> Nx(F+1)</span></div>
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<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> X2[i].<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">push_back</a>(1);</div>
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<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> }</div>
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<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> <span class="comment">// (F+1)xN</span></div>
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<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<T></a>> Xt = <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#a21c80569aaffb7bf1657e54fa4b97deb">get_transpose</a>(X2);</div>
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<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> <span class="comment">// (F+1)x(F+1)</span></div>
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<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<T></a>> tmp = <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#af7243bdc6ae3c7169f01b85bb226e66a">get_inverse</a>(Xt * X2);</div>
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<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> <span class="comment">// (F+1)xN</span></div>
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<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> out = tmp * Xt;</div>
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<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> <span class="comment">// cout << endl</span></div>
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<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> <span class="comment">// << "Projection matrix: " << X2 * out << endl;</span></div>
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<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> </div>
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<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> <span class="comment">// Fx1,1 -> (F+1)^th element is the independent constant</span></div>
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<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> <span class="keywordflow">return</span> out * Y;</div>
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<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span>}</div>
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<div class="fragment"><div class="line"><span class="lineno"> 322</span> {</div>
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<div class="line"><span class="lineno"> 323</span> <span class="comment">// NxF</span></div>
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<div class="line"><span class="lineno"> 324</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<T></a>> X2 = X;</div>
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<div class="line"><span class="lineno"> 325</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < X2.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); i++) {</div>
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<div class="line"><span class="lineno"> 326</span> <span class="comment">// add Y-intercept -> Nx(F+1)</span></div>
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<div class="line"><span class="lineno"> 327</span> X2[i].<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">push_back</a>(1);</div>
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<div class="line"><span class="lineno"> 328</span> }</div>
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<div class="line"><span class="lineno"> 329</span> <span class="comment">// (F+1)xN</span></div>
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<div class="line"><span class="lineno"> 330</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<T></a>> Xt = <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#a21c80569aaffb7bf1657e54fa4b97deb">get_transpose</a>(X2);</div>
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<div class="line"><span class="lineno"> 331</span> <span class="comment">// (F+1)x(F+1)</span></div>
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<div class="line"><span class="lineno"> 332</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<T></a>> tmp = <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#af7243bdc6ae3c7169f01b85bb226e66a">get_inverse</a>(Xt * X2);</div>
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<div class="line"><span class="lineno"> 333</span> <span class="comment">// (F+1)xN</span></div>
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<div class="line"><span class="lineno"> 334</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> out = tmp * Xt;</div>
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<div class="line"><span class="lineno"> 335</span> <span class="comment">// cout << endl</span></div>
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<div class="line"><span class="lineno"> 336</span> <span class="comment">// << "Projection matrix: " << X2 * out << endl;</span></div>
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<div class="line"><span class="lineno"> 337</span> </div>
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<div class="line"><span class="lineno"> 338</span> <span class="comment">// Fx1,1 -> (F+1)^th element is the independent constant</span></div>
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<div class="line"><span class="lineno"> 339</span> <span class="keywordflow">return</span> out * Y;</div>
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<div class="line"><span class="lineno"> 340</span>}</div>
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<div class="ttc" id="aordinary__least__squares__regressor_8cpp_html_a21c80569aaffb7bf1657e54fa4b97deb"><div class="ttname"><a href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#a21c80569aaffb7bf1657e54fa4b97deb">get_transpose</a></div><div class="ttdeci">std::vector< std::vector< T > > get_transpose(std::vector< std::vector< T > > const &A)</div><div class="ttdef"><b>Definition:</b> ordinary_least_squares_regressor.cpp:300</div></div>
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<div class="ttc" id="aordinary__least__squares__regressor_8cpp_html_af7243bdc6ae3c7169f01b85bb226e66a"><div class="ttname"><a href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#af7243bdc6ae3c7169f01b85bb226e66a">get_inverse</a></div><div class="ttdeci">std::vector< std::vector< float > > get_inverse(std::vector< std::vector< T > > const &A)</div><div class="ttdef"><b>Definition:</b> ordinary_least_squares_regressor.cpp:226</div></div>
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<div class="ttc" id="apush_back_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">std::vector::push_back</a></div><div class="ttdeci">T push_back(T... args)</div></div>
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@@ -253,73 +253,73 @@ template<typename T > </div>
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</table>
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</div><div class="memdoc">
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<p >Get matrix inverse using Row-trasnformations. Given matrix must be a square and non-singular. </p><dl class="section return"><dt>Returns</dt><dd>inverse matrix </dd></dl>
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<div class="fragment"><div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> {</div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="comment">// Assuming A is square matrix</span></div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> = A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> </div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> inverse(N);</div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; row++) {</div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <span class="comment">// preallocatae a resultant identity matrix</span></div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> inverse[row] = <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a>(N);</div>
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||||
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> col = 0; col < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; col++) {</div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> inverse[row][col] = (row == col) ? 1.f : 0.f;</div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> }</div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> }</div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> </div>
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<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> <span class="keywordflow">if</span> (!<a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#a8fa731952b0ee3bc7ec51c51ed21911e">is_square</a>(A)) {</div>
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||||
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"A must be a square matrix!"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> <span class="keywordflow">return</span> inverse;</div>
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<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> }</div>
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> </div>
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<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> <span class="comment">// preallocatae a temporary matrix identical to A</span></div>
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<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> temp(N);</div>
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<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; row++) {</div>
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||||
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> v(N);</div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> col = 0; col < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; col++) {</div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> v[col] = <span class="keyword">static_cast<</span><span class="keywordtype">float</span><span class="keyword">></span>(A[row][col]);</div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> }</div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> temp[row] = v;</div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> }</div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> </div>
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<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> <span class="comment">// start transformations</span></div>
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<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; row++) {</div>
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||||
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row2 = row; row2 < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> && temp[row][row] == 0; row2++) {</div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> <span class="comment">// this to ensure diagonal elements are not 0</span></div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> temp[row] = temp[row] + temp[row2];</div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> inverse[row] = inverse[row] + inverse[row2];</div>
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<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> }</div>
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<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> </div>
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<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> col2 = row; col2 < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> && temp[row][row] == 0; col2++) {</div>
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<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> <span class="comment">// this to further ensure diagonal elements are not 0</span></div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row2 = 0; row2 < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; row2++) {</div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> temp[row2][row] = temp[row2][row] + temp[row2][col2];</div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> inverse[row2][row] = inverse[row2][row] + inverse[row2][col2];</div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> }</div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> }</div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> </div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> <span class="keywordflow">if</span> (temp[row][row] == 0) {</div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> <span class="comment">// Probably a low-rank matrix and hence singular</span></div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"Low-rank matrix, no inverse!"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> <span class="keywordflow">return</span> inverse;</div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> }</div>
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> </div>
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> <span class="comment">// set diagonal to 1</span></div>
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> <span class="keyword">auto</span> divisor = <span class="keyword">static_cast<</span><span class="keywordtype">float</span><span class="keyword">></span>(temp[row][row]);</div>
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> temp[row] = temp[row] / divisor;</div>
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<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> inverse[row] = inverse[row] / divisor;</div>
|
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> <span class="comment">// Row transformations</span></div>
|
||||
<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row2 = 0; row2 < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; row2++) {</div>
|
||||
<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> <span class="keywordflow">if</span> (row2 == row) {</div>
|
||||
<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> <span class="keywordflow">continue</span>;</div>
|
||||
<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> }</div>
|
||||
<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> <span class="keywordtype">float</span> factor = temp[row2][row];</div>
|
||||
<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> temp[row2] = temp[row2] - factor * temp[row];</div>
|
||||
<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> inverse[row2] = inverse[row2] - factor * inverse[row];</div>
|
||||
<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> }</div>
|
||||
<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> }</div>
|
||||
<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span> </div>
|
||||
<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> <span class="keywordflow">return</span> inverse;</div>
|
||||
<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span>}</div>
|
||||
<div class="fragment"><div class="line"><span class="lineno"> 227</span> {</div>
|
||||
<div class="line"><span class="lineno"> 228</span> <span class="comment">// Assuming A is square matrix</span></div>
|
||||
<div class="line"><span class="lineno"> 229</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> = A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
|
||||
<div class="line"><span class="lineno"> 230</span> </div>
|
||||
<div class="line"><span class="lineno"> 231</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> inverse(N);</div>
|
||||
<div class="line"><span class="lineno"> 232</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; row++) {</div>
|
||||
<div class="line"><span class="lineno"> 233</span> <span class="comment">// preallocatae a resultant identity matrix</span></div>
|
||||
<div class="line"><span class="lineno"> 234</span> inverse[row] = <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a>(N);</div>
|
||||
<div class="line"><span class="lineno"> 235</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> col = 0; col < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; col++) {</div>
|
||||
<div class="line"><span class="lineno"> 236</span> inverse[row][col] = (row == col) ? 1.f : 0.f;</div>
|
||||
<div class="line"><span class="lineno"> 237</span> }</div>
|
||||
<div class="line"><span class="lineno"> 238</span> }</div>
|
||||
<div class="line"><span class="lineno"> 239</span> </div>
|
||||
<div class="line"><span class="lineno"> 240</span> <span class="keywordflow">if</span> (!<a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#a8fa731952b0ee3bc7ec51c51ed21911e">is_square</a>(A)) {</div>
|
||||
<div class="line"><span class="lineno"> 241</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"A must be a square matrix!"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
|
||||
<div class="line"><span class="lineno"> 242</span> <span class="keywordflow">return</span> inverse;</div>
|
||||
<div class="line"><span class="lineno"> 243</span> }</div>
|
||||
<div class="line"><span class="lineno"> 244</span> </div>
|
||||
<div class="line"><span class="lineno"> 245</span> <span class="comment">// preallocatae a temporary matrix identical to A</span></div>
|
||||
<div class="line"><span class="lineno"> 246</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> temp(N);</div>
|
||||
<div class="line"><span class="lineno"> 247</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; row++) {</div>
|
||||
<div class="line"><span class="lineno"> 248</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> v(N);</div>
|
||||
<div class="line"><span class="lineno"> 249</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> col = 0; col < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; col++) {</div>
|
||||
<div class="line"><span class="lineno"> 250</span> v[col] = <span class="keyword">static_cast<</span><span class="keywordtype">float</span><span class="keyword">></span>(A[row][col]);</div>
|
||||
<div class="line"><span class="lineno"> 251</span> }</div>
|
||||
<div class="line"><span class="lineno"> 252</span> temp[row] = v;</div>
|
||||
<div class="line"><span class="lineno"> 253</span> }</div>
|
||||
<div class="line"><span class="lineno"> 254</span> </div>
|
||||
<div class="line"><span class="lineno"> 255</span> <span class="comment">// start transformations</span></div>
|
||||
<div class="line"><span class="lineno"> 256</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; row++) {</div>
|
||||
<div class="line"><span class="lineno"> 257</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row2 = row; row2 < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> && temp[row][row] == 0; row2++) {</div>
|
||||
<div class="line"><span class="lineno"> 258</span> <span class="comment">// this to ensure diagonal elements are not 0</span></div>
|
||||
<div class="line"><span class="lineno"> 259</span> temp[row] = temp[row] + temp[row2];</div>
|
||||
<div class="line"><span class="lineno"> 260</span> inverse[row] = inverse[row] + inverse[row2];</div>
|
||||
<div class="line"><span class="lineno"> 261</span> }</div>
|
||||
<div class="line"><span class="lineno"> 262</span> </div>
|
||||
<div class="line"><span class="lineno"> 263</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> col2 = row; col2 < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> && temp[row][row] == 0; col2++) {</div>
|
||||
<div class="line"><span class="lineno"> 264</span> <span class="comment">// this to further ensure diagonal elements are not 0</span></div>
|
||||
<div class="line"><span class="lineno"> 265</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row2 = 0; row2 < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; row2++) {</div>
|
||||
<div class="line"><span class="lineno"> 266</span> temp[row2][row] = temp[row2][row] + temp[row2][col2];</div>
|
||||
<div class="line"><span class="lineno"> 267</span> inverse[row2][row] = inverse[row2][row] + inverse[row2][col2];</div>
|
||||
<div class="line"><span class="lineno"> 268</span> }</div>
|
||||
<div class="line"><span class="lineno"> 269</span> }</div>
|
||||
<div class="line"><span class="lineno"> 270</span> </div>
|
||||
<div class="line"><span class="lineno"> 271</span> <span class="keywordflow">if</span> (temp[row][row] == 0) {</div>
|
||||
<div class="line"><span class="lineno"> 272</span> <span class="comment">// Probably a low-rank matrix and hence singular</span></div>
|
||||
<div class="line"><span class="lineno"> 273</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"Low-rank matrix, no inverse!"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
|
||||
<div class="line"><span class="lineno"> 274</span> <span class="keywordflow">return</span> inverse;</div>
|
||||
<div class="line"><span class="lineno"> 275</span> }</div>
|
||||
<div class="line"><span class="lineno"> 276</span> </div>
|
||||
<div class="line"><span class="lineno"> 277</span> <span class="comment">// set diagonal to 1</span></div>
|
||||
<div class="line"><span class="lineno"> 278</span> <span class="keyword">auto</span> divisor = <span class="keyword">static_cast<</span><span class="keywordtype">float</span><span class="keyword">></span>(temp[row][row]);</div>
|
||||
<div class="line"><span class="lineno"> 279</span> temp[row] = temp[row] / divisor;</div>
|
||||
<div class="line"><span class="lineno"> 280</span> inverse[row] = inverse[row] / divisor;</div>
|
||||
<div class="line"><span class="lineno"> 281</span> <span class="comment">// Row transformations</span></div>
|
||||
<div class="line"><span class="lineno"> 282</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row2 = 0; row2 < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; row2++) {</div>
|
||||
<div class="line"><span class="lineno"> 283</span> <span class="keywordflow">if</span> (row2 == row) {</div>
|
||||
<div class="line"><span class="lineno"> 284</span> <span class="keywordflow">continue</span>;</div>
|
||||
<div class="line"><span class="lineno"> 285</span> }</div>
|
||||
<div class="line"><span class="lineno"> 286</span> <span class="keywordtype">float</span> factor = temp[row2][row];</div>
|
||||
<div class="line"><span class="lineno"> 287</span> temp[row2] = temp[row2] - factor * temp[row];</div>
|
||||
<div class="line"><span class="lineno"> 288</span> inverse[row2] = inverse[row2] - factor * inverse[row];</div>
|
||||
<div class="line"><span class="lineno"> 289</span> }</div>
|
||||
<div class="line"><span class="lineno"> 290</span> }</div>
|
||||
<div class="line"><span class="lineno"> 291</span> </div>
|
||||
<div class="line"><span class="lineno"> 292</span> <span class="keywordflow">return</span> inverse;</div>
|
||||
<div class="line"><span class="lineno"> 293</span>}</div>
|
||||
<div class="ttc" id="abasic_ostream_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a></div></div>
|
||||
<div class="ttc" id="adata__structures_2sparse__table_8cpp_html_a10f3ffb3f6f7e1b83d556b9c8de89a5d"><div class="ttname"><a href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">data_structures::sparse_table::N</a></div><div class="ttdeci">constexpr uint32_t N</div><div class="ttdoc">A struct to represent sparse table for min() as their invariant function, for the given array A....</div><div class="ttdef"><b>Definition:</b> sparse_table.cpp:47</div></div>
|
||||
<div class="ttc" id="aendl_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a></div><div class="ttdeci">T endl(T... args)</div></div>
|
||||
@@ -351,17 +351,17 @@ template<typename T > </div>
|
||||
</table>
|
||||
</div><div class="memdoc">
|
||||
<p >matrix transpose </p><dl class="section return"><dt>Returns</dt><dd>resultant matrix </dd></dl>
|
||||
<div class="fragment"><div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span> {</div>
|
||||
<div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<T></a>> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>(A[0].size());</div>
|
||||
<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> </div>
|
||||
<div class="line"><a id="l00304" name="l00304"></a><span class="lineno"> 304</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < A[0].<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); row++) {</div>
|
||||
<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<T></a> v(A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>());</div>
|
||||
<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> col = 0; col < A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); col++) v[col] = A[col][row];</div>
|
||||
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> </div>
|
||||
<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>[row] = v;</div>
|
||||
<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> }</div>
|
||||
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span>}</div>
|
||||
<div class="fragment"><div class="line"><span class="lineno"> 301</span> {</div>
|
||||
<div class="line"><span class="lineno"> 302</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<T></a>> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>(A[0].size());</div>
|
||||
<div class="line"><span class="lineno"> 303</span> </div>
|
||||
<div class="line"><span class="lineno"> 304</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < A[0].<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); row++) {</div>
|
||||
<div class="line"><span class="lineno"> 305</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<T></a> v(A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>());</div>
|
||||
<div class="line"><span class="lineno"> 306</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> col = 0; col < A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); col++) v[col] = A[col][row];</div>
|
||||
<div class="line"><span class="lineno"> 307</span> </div>
|
||||
<div class="line"><span class="lineno"> 308</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>[row] = v;</div>
|
||||
<div class="line"><span class="lineno"> 309</span> }</div>
|
||||
<div class="line"><span class="lineno"> 310</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><span class="lineno"> 311</span>}</div>
|
||||
<div class="ttc" id="afibonacci__sum_8cpp_html_aadb40ac4c74a7efc0680b83eeee138aa"><div class="ttname"><a href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">math::fibonacci_sum::result</a></div><div class="ttdeci">uint64_t result(uint64_t n)</div><div class="ttdef"><b>Definition:</b> fibonacci_sum.cpp:76</div></div>
|
||||
</div><!-- fragment -->
|
||||
</div>
|
||||
@@ -392,16 +392,16 @@ template<typename T > </div>
|
||||
</table>
|
||||
</div><div class="memdoc">
|
||||
<p >function to check if given matrix is a square matrix </p><dl class="section return"><dt>Returns</dt><dd>1 if true, 0 if false </dd></dl>
|
||||
<div class="fragment"><div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> {</div>
|
||||
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="comment">// Assuming A is square matrix</span></div>
|
||||
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> = A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
|
||||
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; i++) {</div>
|
||||
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="keywordflow">if</span> (A[i].size() != N) {</div>
|
||||
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
||||
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> }</div>
|
||||
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> }</div>
|
||||
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
||||
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span>}</div>
|
||||
<div class="fragment"><div class="line"><span class="lineno"> 59</span> {</div>
|
||||
<div class="line"><span class="lineno"> 60</span> <span class="comment">// Assuming A is square matrix</span></div>
|
||||
<div class="line"><span class="lineno"> 61</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> = A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
|
||||
<div class="line"><span class="lineno"> 62</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; i++) {</div>
|
||||
<div class="line"><span class="lineno"> 63</span> <span class="keywordflow">if</span> (A[i].size() != N) {</div>
|
||||
<div class="line"><span class="lineno"> 64</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
||||
<div class="line"><span class="lineno"> 65</span> }</div>
|
||||
<div class="line"><span class="lineno"> 66</span> }</div>
|
||||
<div class="line"><span class="lineno"> 67</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
|
||||
<div class="line"><span class="lineno"> 68</span>}</div>
|
||||
</div><!-- fragment -->
|
||||
</div>
|
||||
</div>
|
||||
@@ -421,59 +421,59 @@ template<typename T > </div>
|
||||
</table>
|
||||
</div><div class="memdoc">
|
||||
<p >main function </p>
|
||||
<div class="fragment"><div class="line"><a id="l00423" name="l00423"></a><span class="lineno"> 423</span> {</div>
|
||||
<div class="line"><a id="l00424" name="l00424"></a><span class="lineno"> 424</span> <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#a4261f3c3c3dfdb86f3004eb8aaffea8d">ols_test</a>();</div>
|
||||
<div class="line"><a id="l00425" name="l00425"></a><span class="lineno"> 425</span> </div>
|
||||
<div class="line"><a id="l00426" name="l00426"></a><span class="lineno"> 426</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> = 0, F = 0;</div>
|
||||
<div class="line"><a id="l00427" name="l00427"></a><span class="lineno"> 427</span> </div>
|
||||
<div class="line"><a id="l00428" name="l00428"></a><span class="lineno"> 428</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Enter number of features: "</span>;</div>
|
||||
<div class="line"><a id="l00429" name="l00429"></a><span class="lineno"> 429</span> <span class="comment">// number of features = columns</span></div>
|
||||
<div class="line"><a id="l00430" name="l00430"></a><span class="lineno"> 430</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> >> F;</div>
|
||||
<div class="line"><a id="l00431" name="l00431"></a><span class="lineno"> 431</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Enter number of samples: "</span>;</div>
|
||||
<div class="line"><a id="l00432" name="l00432"></a><span class="lineno"> 432</span> <span class="comment">// number of samples = rows</span></div>
|
||||
<div class="line"><a id="l00433" name="l00433"></a><span class="lineno"> 433</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> >> <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>;</div>
|
||||
<div class="line"><a id="l00434" name="l00434"></a><span class="lineno"> 434</span> </div>
|
||||
<div class="line"><a id="l00435" name="l00435"></a><span class="lineno"> 435</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> <a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>(N);</div>
|
||||
<div class="line"><a id="l00436" name="l00436"></a><span class="lineno"> 436</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> Y(N);</div>
|
||||
<div class="line"><a id="l00437" name="l00437"></a><span class="lineno"> 437</span> </div>
|
||||
<div class="line"><a id="l00438" name="l00438"></a><span class="lineno"> 438</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a></div>
|
||||
<div class="line"><a id="l00439" name="l00439"></a><span class="lineno"> 439</span> << <span class="stringliteral">"Enter training data. Per sample, provide features and one output."</span></div>
|
||||
<div class="line"><a id="l00440" name="l00440"></a><span class="lineno"> 440</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
|
||||
<div class="line"><a id="l00441" name="l00441"></a><span class="lineno"> 441</span> </div>
|
||||
<div class="line"><a id="l00442" name="l00442"></a><span class="lineno"> 442</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> rows = 0; rows < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; rows++) {</div>
|
||||
<div class="line"><a id="l00443" name="l00443"></a><span class="lineno"> 443</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> v(F);</div>
|
||||
<div class="line"><a id="l00444" name="l00444"></a><span class="lineno"> 444</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Sample# "</span> << rows + 1 << <span class="stringliteral">": "</span>;</div>
|
||||
<div class="line"><a id="l00445" name="l00445"></a><span class="lineno"> 445</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> cols = 0; cols < F; cols++) {</div>
|
||||
<div class="line"><a id="l00446" name="l00446"></a><span class="lineno"> 446</span> <span class="comment">// get the F features</span></div>
|
||||
<div class="line"><a id="l00447" name="l00447"></a><span class="lineno"> 447</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> >> v[cols];</div>
|
||||
<div class="line"><a id="l00448" name="l00448"></a><span class="lineno"> 448</span> }</div>
|
||||
<div class="line"><a id="l00449" name="l00449"></a><span class="lineno"> 449</span> <a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>[rows] = v;</div>
|
||||
<div class="line"><a id="l00450" name="l00450"></a><span class="lineno"> 450</span> <span class="comment">// get the corresponding output</span></div>
|
||||
<div class="line"><a id="l00451" name="l00451"></a><span class="lineno"> 451</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> >> Y[rows];</div>
|
||||
<div class="line"><a id="l00452" name="l00452"></a><span class="lineno"> 452</span> }</div>
|
||||
<div class="line"><a id="l00453" name="l00453"></a><span class="lineno"> 453</span> </div>
|
||||
<div class="line"><a id="l00454" name="l00454"></a><span class="lineno"> 454</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> beta = <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#aaddc683af581b51351e1023d2a01ef3b">fit_OLS_regressor</a>(<a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>, Y);</div>
|
||||
<div class="line"><a id="l00455" name="l00455"></a><span class="lineno"> 455</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a> << <span class="stringliteral">"beta:"</span> << beta << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
|
||||
<div class="line"><a id="l00456" name="l00456"></a><span class="lineno"> 456</span> </div>
|
||||
<div class="line"><a id="l00457" name="l00457"></a><span class="lineno"> 457</span> <span class="keywordtype">size_t</span> T = 0;</div>
|
||||
<div class="line"><a id="l00458" name="l00458"></a><span class="lineno"> 458</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Enter number of test samples: "</span>;</div>
|
||||
<div class="line"><a id="l00459" name="l00459"></a><span class="lineno"> 459</span> <span class="comment">// number of test sample inputs</span></div>
|
||||
<div class="line"><a id="l00460" name="l00460"></a><span class="lineno"> 460</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> >> T;</div>
|
||||
<div class="line"><a id="l00461" name="l00461"></a><span class="lineno"> 461</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> data2(T);</div>
|
||||
<div class="line"><a id="l00462" name="l00462"></a><span class="lineno"> 462</span> <span class="comment">// vector<float> Y2(T);</span></div>
|
||||
<div class="line"><a id="l00463" name="l00463"></a><span class="lineno"> 463</span> </div>
|
||||
<div class="line"><a id="l00464" name="l00464"></a><span class="lineno"> 464</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> rows = 0; rows < T; rows++) {</div>
|
||||
<div class="line"><a id="l00465" name="l00465"></a><span class="lineno"> 465</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Sample# "</span> << rows + 1 << <span class="stringliteral">": "</span>;</div>
|
||||
<div class="line"><a id="l00466" name="l00466"></a><span class="lineno"> 466</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> v(F);</div>
|
||||
<div class="line"><a id="l00467" name="l00467"></a><span class="lineno"> 467</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> cols = 0; cols < F; cols++) std::cin >> v[cols];</div>
|
||||
<div class="line"><a id="l00468" name="l00468"></a><span class="lineno"> 468</span> data2[rows] = v;</div>
|
||||
<div class="line"><a id="l00469" name="l00469"></a><span class="lineno"> 469</span> }</div>
|
||||
<div class="line"><a id="l00470" name="l00470"></a><span class="lineno"> 470</span> </div>
|
||||
<div class="line"><a id="l00471" name="l00471"></a><span class="lineno"> 471</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> out = <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#ade6e463f37878fe2a219f927c65b5493">predict_OLS_regressor</a>(data2, beta);</div>
|
||||
<div class="line"><a id="l00472" name="l00472"></a><span class="lineno"> 472</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> rows = 0; rows < T; rows++) <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << out[rows] << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
|
||||
<div class="line"><a id="l00473" name="l00473"></a><span class="lineno"> 473</span> </div>
|
||||
<div class="line"><a id="l00474" name="l00474"></a><span class="lineno"> 474</span> <span class="keywordflow">return</span> 0;</div>
|
||||
<div class="line"><a id="l00475" name="l00475"></a><span class="lineno"> 475</span>}</div>
|
||||
<div class="fragment"><div class="line"><span class="lineno"> 423</span> {</div>
|
||||
<div class="line"><span class="lineno"> 424</span> <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#a4261f3c3c3dfdb86f3004eb8aaffea8d">ols_test</a>();</div>
|
||||
<div class="line"><span class="lineno"> 425</span> </div>
|
||||
<div class="line"><span class="lineno"> 426</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> = 0, F = 0;</div>
|
||||
<div class="line"><span class="lineno"> 427</span> </div>
|
||||
<div class="line"><span class="lineno"> 428</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Enter number of features: "</span>;</div>
|
||||
<div class="line"><span class="lineno"> 429</span> <span class="comment">// number of features = columns</span></div>
|
||||
<div class="line"><span class="lineno"> 430</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> >> F;</div>
|
||||
<div class="line"><span class="lineno"> 431</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Enter number of samples: "</span>;</div>
|
||||
<div class="line"><span class="lineno"> 432</span> <span class="comment">// number of samples = rows</span></div>
|
||||
<div class="line"><span class="lineno"> 433</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> >> <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>;</div>
|
||||
<div class="line"><span class="lineno"> 434</span> </div>
|
||||
<div class="line"><span class="lineno"> 435</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> <a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>(N);</div>
|
||||
<div class="line"><span class="lineno"> 436</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> Y(N);</div>
|
||||
<div class="line"><span class="lineno"> 437</span> </div>
|
||||
<div class="line"><span class="lineno"> 438</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a></div>
|
||||
<div class="line"><span class="lineno"> 439</span> << <span class="stringliteral">"Enter training data. Per sample, provide features and one output."</span></div>
|
||||
<div class="line"><span class="lineno"> 440</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
|
||||
<div class="line"><span class="lineno"> 441</span> </div>
|
||||
<div class="line"><span class="lineno"> 442</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> rows = 0; rows < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; rows++) {</div>
|
||||
<div class="line"><span class="lineno"> 443</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> v(F);</div>
|
||||
<div class="line"><span class="lineno"> 444</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Sample# "</span> << rows + 1 << <span class="stringliteral">": "</span>;</div>
|
||||
<div class="line"><span class="lineno"> 445</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> cols = 0; cols < F; cols++) {</div>
|
||||
<div class="line"><span class="lineno"> 446</span> <span class="comment">// get the F features</span></div>
|
||||
<div class="line"><span class="lineno"> 447</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> >> v[cols];</div>
|
||||
<div class="line"><span class="lineno"> 448</span> }</div>
|
||||
<div class="line"><span class="lineno"> 449</span> <a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>[rows] = v;</div>
|
||||
<div class="line"><span class="lineno"> 450</span> <span class="comment">// get the corresponding output</span></div>
|
||||
<div class="line"><span class="lineno"> 451</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> >> Y[rows];</div>
|
||||
<div class="line"><span class="lineno"> 452</span> }</div>
|
||||
<div class="line"><span class="lineno"> 453</span> </div>
|
||||
<div class="line"><span class="lineno"> 454</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> beta = <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#aaddc683af581b51351e1023d2a01ef3b">fit_OLS_regressor</a>(<a class="code hl_variable" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>, Y);</div>
|
||||
<div class="line"><span class="lineno"> 455</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a> << <span class="stringliteral">"beta:"</span> << beta << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
|
||||
<div class="line"><span class="lineno"> 456</span> </div>
|
||||
<div class="line"><span class="lineno"> 457</span> <span class="keywordtype">size_t</span> T = 0;</div>
|
||||
<div class="line"><span class="lineno"> 458</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Enter number of test samples: "</span>;</div>
|
||||
<div class="line"><span class="lineno"> 459</span> <span class="comment">// number of test sample inputs</span></div>
|
||||
<div class="line"><span class="lineno"> 460</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> >> T;</div>
|
||||
<div class="line"><span class="lineno"> 461</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> data2(T);</div>
|
||||
<div class="line"><span class="lineno"> 462</span> <span class="comment">// vector<float> Y2(T);</span></div>
|
||||
<div class="line"><span class="lineno"> 463</span> </div>
|
||||
<div class="line"><span class="lineno"> 464</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> rows = 0; rows < T; rows++) {</div>
|
||||
<div class="line"><span class="lineno"> 465</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Sample# "</span> << rows + 1 << <span class="stringliteral">": "</span>;</div>
|
||||
<div class="line"><span class="lineno"> 466</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> v(F);</div>
|
||||
<div class="line"><span class="lineno"> 467</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> cols = 0; cols < F; cols++) std::cin >> v[cols];</div>
|
||||
<div class="line"><span class="lineno"> 468</span> data2[rows] = v;</div>
|
||||
<div class="line"><span class="lineno"> 469</span> }</div>
|
||||
<div class="line"><span class="lineno"> 470</span> </div>
|
||||
<div class="line"><span class="lineno"> 471</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> out = <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#ade6e463f37878fe2a219f927c65b5493">predict_OLS_regressor</a>(data2, beta);</div>
|
||||
<div class="line"><span class="lineno"> 472</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> rows = 0; rows < T; rows++) <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << out[rows] << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
|
||||
<div class="line"><span class="lineno"> 473</span> </div>
|
||||
<div class="line"><span class="lineno"> 474</span> <span class="keywordflow">return</span> 0;</div>
|
||||
<div class="line"><span class="lineno"> 475</span>}</div>
|
||||
<div class="ttc" id="abasic_istream_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a></div></div>
|
||||
<div class="ttc" id="ahash__search_8cpp_html_a6e1a77282bc65ad359d753d25df23243"><div class="ttname"><a href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a></div><div class="ttdeci">int data[MAX]</div><div class="ttdoc">test data</div><div class="ttdef"><b>Definition:</b> hash_search.cpp:24</div></div>
|
||||
<div class="ttc" id="aordinary__least__squares__regressor_8cpp_html_a4261f3c3c3dfdb86f3004eb8aaffea8d"><div class="ttname"><a href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#a4261f3c3c3dfdb86f3004eb8aaffea8d">ols_test</a></div><div class="ttdeci">void ols_test()</div><div class="ttdef"><b>Definition:</b> ordinary_least_squares_regressor.cpp:369</div></div>
|
||||
@@ -503,56 +503,56 @@ Here is the call graph for this function:</div>
|
||||
</table>
|
||||
</div><div class="memdoc">
|
||||
<p >Self test checks </p>
|
||||
<div class="fragment"><div class="line"><a id="l00369" name="l00369"></a><span class="lineno"> 369</span> {</div>
|
||||
<div class="line"><a id="l00370" name="l00370"></a><span class="lineno"> 370</span> <span class="keywordtype">int</span> F = 3, <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> = 5;</div>
|
||||
<div class="line"><a id="l00371" name="l00371"></a><span class="lineno"> 371</span> </div>
|
||||
<div class="line"><a id="l00372" name="l00372"></a><span class="lineno"> 372</span> <span class="comment">/* test function = x^2 -5 */</span></div>
|
||||
<div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Test 1 (quadratic function)...."</span>;</div>
|
||||
<div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span> <span class="comment">// create training data set with features = x, x^2, x^3</span></div>
|
||||
<div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> data1(</div>
|
||||
<div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span> {{-5, 25, -125}, {-1, 1, -1}, {0, 0, 0}, {1, 1, 1}, {6, 36, 216}});</div>
|
||||
<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> <span class="comment">// create corresponding outputs</span></div>
|
||||
<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> Y1({20, -4, -5, -4, 31});</div>
|
||||
<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span> <span class="comment">// perform regression modelling</span></div>
|
||||
<div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> beta1 = <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#aaddc683af581b51351e1023d2a01ef3b">fit_OLS_regressor</a>(data1, Y1);</div>
|
||||
<div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span> <span class="comment">// create test data set with same features = x, x^2, x^3</span></div>
|
||||
<div class="line"><a id="l00382" name="l00382"></a><span class="lineno"> 382</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> test_data1(</div>
|
||||
<div class="line"><a id="l00383" name="l00383"></a><span class="lineno"> 383</span> {{-2, 4, -8}, {2, 4, 8}, {-10, 100, -1000}, {10, 100, 1000}});</div>
|
||||
<div class="line"><a id="l00384" name="l00384"></a><span class="lineno"> 384</span> <span class="comment">// expected regression outputs</span></div>
|
||||
<div class="line"><a id="l00385" name="l00385"></a><span class="lineno"> 385</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> expected1({-1, -1, 95, 95});</div>
|
||||
<div class="line"><a id="l00386" name="l00386"></a><span class="lineno"> 386</span> <span class="comment">// predicted regression outputs</span></div>
|
||||
<div class="line"><a id="l00387" name="l00387"></a><span class="lineno"> 387</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> out1 = <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#ade6e463f37878fe2a219f927c65b5493">predict_OLS_regressor</a>(test_data1, beta1);</div>
|
||||
<div class="line"><a id="l00388" name="l00388"></a><span class="lineno"> 388</span> <span class="comment">// compare predicted results are within +-0.01 limit of expected</span></div>
|
||||
<div class="line"><a id="l00389" name="l00389"></a><span class="lineno"> 389</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> rows = 0; rows < out1.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); rows++) {</div>
|
||||
<div class="line"><a id="l00390" name="l00390"></a><span class="lineno"> 390</span> assert(std::abs(out1[rows] - expected1[rows]) < 0.01);</div>
|
||||
<div class="line"><a id="l00391" name="l00391"></a><span class="lineno"> 391</span> }</div>
|
||||
<div class="line"><a id="l00392" name="l00392"></a><span class="lineno"> 392</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"passed\n"</span>;</div>
|
||||
<div class="line"><a id="l00393" name="l00393"></a><span class="lineno"> 393</span> </div>
|
||||
<div class="line"><a id="l00394" name="l00394"></a><span class="lineno"> 394</span> <span class="comment">/* test function = x^3 + x^2 - 100 */</span></div>
|
||||
<div class="line"><a id="l00395" name="l00395"></a><span class="lineno"> 395</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Test 2 (cubic function)...."</span>;</div>
|
||||
<div class="line"><a id="l00396" name="l00396"></a><span class="lineno"> 396</span> <span class="comment">// create training data set with features = x, x^2, x^3</span></div>
|
||||
<div class="line"><a id="l00397" name="l00397"></a><span class="lineno"> 397</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> data2(</div>
|
||||
<div class="line"><a id="l00398" name="l00398"></a><span class="lineno"> 398</span> {{-5, 25, -125}, {-1, 1, -1}, {0, 0, 0}, {1, 1, 1}, {6, 36, 216}});</div>
|
||||
<div class="line"><a id="l00399" name="l00399"></a><span class="lineno"> 399</span> <span class="comment">// create corresponding outputs</span></div>
|
||||
<div class="line"><a id="l00400" name="l00400"></a><span class="lineno"> 400</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> Y2({-200, -100, -100, 98, 152});</div>
|
||||
<div class="line"><a id="l00401" name="l00401"></a><span class="lineno"> 401</span> <span class="comment">// perform regression modelling</span></div>
|
||||
<div class="line"><a id="l00402" name="l00402"></a><span class="lineno"> 402</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> beta2 = <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#aaddc683af581b51351e1023d2a01ef3b">fit_OLS_regressor</a>(data2, Y2);</div>
|
||||
<div class="line"><a id="l00403" name="l00403"></a><span class="lineno"> 403</span> <span class="comment">// create test data set with same features = x, x^2, x^3</span></div>
|
||||
<div class="line"><a id="l00404" name="l00404"></a><span class="lineno"> 404</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> test_data2(</div>
|
||||
<div class="line"><a id="l00405" name="l00405"></a><span class="lineno"> 405</span> {{-2, 4, -8}, {2, 4, 8}, {-10, 100, -1000}, {10, 100, 1000}});</div>
|
||||
<div class="line"><a id="l00406" name="l00406"></a><span class="lineno"> 406</span> <span class="comment">// expected regression outputs</span></div>
|
||||
<div class="line"><a id="l00407" name="l00407"></a><span class="lineno"> 407</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> expected2({-104, -88, -1000, 1000});</div>
|
||||
<div class="line"><a id="l00408" name="l00408"></a><span class="lineno"> 408</span> <span class="comment">// predicted regression outputs</span></div>
|
||||
<div class="line"><a id="l00409" name="l00409"></a><span class="lineno"> 409</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> out2 = <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#ade6e463f37878fe2a219f927c65b5493">predict_OLS_regressor</a>(test_data2, beta2);</div>
|
||||
<div class="line"><a id="l00410" name="l00410"></a><span class="lineno"> 410</span> <span class="comment">// compare predicted results are within +-0.01 limit of expected</span></div>
|
||||
<div class="line"><a id="l00411" name="l00411"></a><span class="lineno"> 411</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> rows = 0; rows < out2.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); rows++) {</div>
|
||||
<div class="line"><a id="l00412" name="l00412"></a><span class="lineno"> 412</span> assert(std::abs(out2[rows] - expected2[rows]) < 0.01);</div>
|
||||
<div class="line"><a id="l00413" name="l00413"></a><span class="lineno"> 413</span> }</div>
|
||||
<div class="line"><a id="l00414" name="l00414"></a><span class="lineno"> 414</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"passed\n"</span>;</div>
|
||||
<div class="line"><a id="l00415" name="l00415"></a><span class="lineno"> 415</span> </div>
|
||||
<div class="line"><a id="l00416" name="l00416"></a><span class="lineno"> 416</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>; <span class="comment">// ensure test results are displayed on screen</span></div>
|
||||
<div class="line"><a id="l00417" name="l00417"></a><span class="lineno"> 417</span> <span class="comment">// (flush stdout)</span></div>
|
||||
<div class="line"><a id="l00418" name="l00418"></a><span class="lineno"> 418</span>}</div>
|
||||
<div class="fragment"><div class="line"><span class="lineno"> 369</span> {</div>
|
||||
<div class="line"><span class="lineno"> 370</span> <span class="keywordtype">int</span> F = 3, <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> = 5;</div>
|
||||
<div class="line"><span class="lineno"> 371</span> </div>
|
||||
<div class="line"><span class="lineno"> 372</span> <span class="comment">/* test function = x^2 -5 */</span></div>
|
||||
<div class="line"><span class="lineno"> 373</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Test 1 (quadratic function)...."</span>;</div>
|
||||
<div class="line"><span class="lineno"> 374</span> <span class="comment">// create training data set with features = x, x^2, x^3</span></div>
|
||||
<div class="line"><span class="lineno"> 375</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> data1(</div>
|
||||
<div class="line"><span class="lineno"> 376</span> {{-5, 25, -125}, {-1, 1, -1}, {0, 0, 0}, {1, 1, 1}, {6, 36, 216}});</div>
|
||||
<div class="line"><span class="lineno"> 377</span> <span class="comment">// create corresponding outputs</span></div>
|
||||
<div class="line"><span class="lineno"> 378</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> Y1({20, -4, -5, -4, 31});</div>
|
||||
<div class="line"><span class="lineno"> 379</span> <span class="comment">// perform regression modelling</span></div>
|
||||
<div class="line"><span class="lineno"> 380</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> beta1 = <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#aaddc683af581b51351e1023d2a01ef3b">fit_OLS_regressor</a>(data1, Y1);</div>
|
||||
<div class="line"><span class="lineno"> 381</span> <span class="comment">// create test data set with same features = x, x^2, x^3</span></div>
|
||||
<div class="line"><span class="lineno"> 382</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> test_data1(</div>
|
||||
<div class="line"><span class="lineno"> 383</span> {{-2, 4, -8}, {2, 4, 8}, {-10, 100, -1000}, {10, 100, 1000}});</div>
|
||||
<div class="line"><span class="lineno"> 384</span> <span class="comment">// expected regression outputs</span></div>
|
||||
<div class="line"><span class="lineno"> 385</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> expected1({-1, -1, 95, 95});</div>
|
||||
<div class="line"><span class="lineno"> 386</span> <span class="comment">// predicted regression outputs</span></div>
|
||||
<div class="line"><span class="lineno"> 387</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> out1 = <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#ade6e463f37878fe2a219f927c65b5493">predict_OLS_regressor</a>(test_data1, beta1);</div>
|
||||
<div class="line"><span class="lineno"> 388</span> <span class="comment">// compare predicted results are within +-0.01 limit of expected</span></div>
|
||||
<div class="line"><span class="lineno"> 389</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> rows = 0; rows < out1.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); rows++) {</div>
|
||||
<div class="line"><span class="lineno"> 390</span> assert(std::abs(out1[rows] - expected1[rows]) < 0.01);</div>
|
||||
<div class="line"><span class="lineno"> 391</span> }</div>
|
||||
<div class="line"><span class="lineno"> 392</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"passed\n"</span>;</div>
|
||||
<div class="line"><span class="lineno"> 393</span> </div>
|
||||
<div class="line"><span class="lineno"> 394</span> <span class="comment">/* test function = x^3 + x^2 - 100 */</span></div>
|
||||
<div class="line"><span class="lineno"> 395</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"Test 2 (cubic function)...."</span>;</div>
|
||||
<div class="line"><span class="lineno"> 396</span> <span class="comment">// create training data set with features = x, x^2, x^3</span></div>
|
||||
<div class="line"><span class="lineno"> 397</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> data2(</div>
|
||||
<div class="line"><span class="lineno"> 398</span> {{-5, 25, -125}, {-1, 1, -1}, {0, 0, 0}, {1, 1, 1}, {6, 36, 216}});</div>
|
||||
<div class="line"><span class="lineno"> 399</span> <span class="comment">// create corresponding outputs</span></div>
|
||||
<div class="line"><span class="lineno"> 400</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> Y2({-200, -100, -100, 98, 152});</div>
|
||||
<div class="line"><span class="lineno"> 401</span> <span class="comment">// perform regression modelling</span></div>
|
||||
<div class="line"><span class="lineno"> 402</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> beta2 = <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#aaddc683af581b51351e1023d2a01ef3b">fit_OLS_regressor</a>(data2, Y2);</div>
|
||||
<div class="line"><span class="lineno"> 403</span> <span class="comment">// create test data set with same features = x, x^2, x^3</span></div>
|
||||
<div class="line"><span class="lineno"> 404</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<float></a>> test_data2(</div>
|
||||
<div class="line"><span class="lineno"> 405</span> {{-2, 4, -8}, {2, 4, 8}, {-10, 100, -1000}, {10, 100, 1000}});</div>
|
||||
<div class="line"><span class="lineno"> 406</span> <span class="comment">// expected regression outputs</span></div>
|
||||
<div class="line"><span class="lineno"> 407</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> expected2({-104, -88, -1000, 1000});</div>
|
||||
<div class="line"><span class="lineno"> 408</span> <span class="comment">// predicted regression outputs</span></div>
|
||||
<div class="line"><span class="lineno"> 409</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> out2 = <a class="code hl_function" href="../../dc/d38/ordinary__least__squares__regressor_8cpp.html#ade6e463f37878fe2a219f927c65b5493">predict_OLS_regressor</a>(test_data2, beta2);</div>
|
||||
<div class="line"><span class="lineno"> 410</span> <span class="comment">// compare predicted results are within +-0.01 limit of expected</span></div>
|
||||
<div class="line"><span class="lineno"> 411</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> rows = 0; rows < out2.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); rows++) {</div>
|
||||
<div class="line"><span class="lineno"> 412</span> assert(std::abs(out2[rows] - expected2[rows]) < 0.01);</div>
|
||||
<div class="line"><span class="lineno"> 413</span> }</div>
|
||||
<div class="line"><span class="lineno"> 414</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"passed\n"</span>;</div>
|
||||
<div class="line"><span class="lineno"> 415</span> </div>
|
||||
<div class="line"><span class="lineno"> 416</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>; <span class="comment">// ensure test results are displayed on screen</span></div>
|
||||
<div class="line"><span class="lineno"> 417</span> <span class="comment">// (flush stdout)</span></div>
|
||||
<div class="line"><span class="lineno"> 418</span>}</div>
|
||||
</div><!-- fragment --><div class="dynheader">
|
||||
Here is the call graph for this function:</div>
|
||||
<div class="dyncontent">
|
||||
@@ -590,18 +590,18 @@ template<typename T > </div>
|
||||
</table>
|
||||
</div><div class="memdoc">
|
||||
<p >pre-multiplication of a vector by a scalar </p><dl class="section return"><dt>Returns</dt><dd>resultant vector </dd></dl>
|
||||
<div class="fragment"><div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> {</div>
|
||||
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="comment">// Number of rows in A</span></div>
|
||||
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <span class="keywordtype">size_t</span> N_A = A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
|
||||
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> </div>
|
||||
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>(N_A);</div>
|
||||
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> </div>
|
||||
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < N_A; row++) {</div>
|
||||
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>[row] += A[row] * <span class="keyword">static_cast<</span><span class="keywordtype">float</span><span class="keyword">></span>(scalar);</div>
|
||||
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> }</div>
|
||||
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> </div>
|
||||
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span>}</div>
|
||||
<div class="fragment"><div class="line"><span class="lineno"> 138</span> {</div>
|
||||
<div class="line"><span class="lineno"> 139</span> <span class="comment">// Number of rows in A</span></div>
|
||||
<div class="line"><span class="lineno"> 140</span> <span class="keywordtype">size_t</span> N_A = A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
|
||||
<div class="line"><span class="lineno"> 141</span> </div>
|
||||
<div class="line"><span class="lineno"> 142</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>(N_A);</div>
|
||||
<div class="line"><span class="lineno"> 143</span> </div>
|
||||
<div class="line"><span class="lineno"> 144</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < N_A; row++) {</div>
|
||||
<div class="line"><span class="lineno"> 145</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>[row] += A[row] * <span class="keyword">static_cast<</span><span class="keywordtype">float</span><span class="keyword">></span>(scalar);</div>
|
||||
<div class="line"><span class="lineno"> 146</span> }</div>
|
||||
<div class="line"><span class="lineno"> 147</span> </div>
|
||||
<div class="line"><span class="lineno"> 148</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><span class="lineno"> 149</span>}</div>
|
||||
</div><!-- fragment --><div class="dynheader">
|
||||
Here is the call graph for this function:</div>
|
||||
<div class="dyncontent">
|
||||
@@ -640,33 +640,33 @@ template<typename T > </div>
|
||||
</div><div class="memdoc">
|
||||
<p >Matrix multiplication such that if A is size (mxn) and B is of size (pxq) then the multiplication is defined only when n = p and the resultant matrix is of size (mxq)</p>
|
||||
<dl class="section return"><dt>Returns</dt><dd>resultant matrix </dd></dl>
|
||||
<div class="fragment"><div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> {</div>
|
||||
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="comment">// Number of rows in A</span></div>
|
||||
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keywordtype">size_t</span> N_A = A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
|
||||
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <span class="comment">// Number of columns in B</span></div>
|
||||
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="keywordtype">size_t</span> N_B = B[0].<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
|
||||
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> </div>
|
||||
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<T></a>> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>(N_A);</div>
|
||||
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> </div>
|
||||
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="keywordflow">if</span> (A[0].size() != B.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>()) {</div>
|
||||
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"Number of columns in A != Number of rows in B ("</span></div>
|
||||
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> << A[0].<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() << <span class="stringliteral">", "</span> << B.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() << <span class="stringliteral">")"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
|
||||
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> }</div>
|
||||
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> </div>
|
||||
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < N_A; row++) {</div>
|
||||
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<T></a> v(N_B);</div>
|
||||
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> col = 0; col < N_B; col++) {</div>
|
||||
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> v[col] = <span class="keyword">static_cast<</span>T<span class="keyword">></span>(0);</div>
|
||||
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> j = 0; j < B.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); j++) {</div>
|
||||
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> v[col] += A[row][j] * B[j][col];</div>
|
||||
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> }</div>
|
||||
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> }</div>
|
||||
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>[row] = v;</div>
|
||||
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> }</div>
|
||||
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> </div>
|
||||
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span>}</div>
|
||||
<div class="fragment"><div class="line"><span class="lineno"> 79</span> {</div>
|
||||
<div class="line"><span class="lineno"> 80</span> <span class="comment">// Number of rows in A</span></div>
|
||||
<div class="line"><span class="lineno"> 81</span> <span class="keywordtype">size_t</span> N_A = A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
|
||||
<div class="line"><span class="lineno"> 82</span> <span class="comment">// Number of columns in B</span></div>
|
||||
<div class="line"><span class="lineno"> 83</span> <span class="keywordtype">size_t</span> N_B = B[0].<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
|
||||
<div class="line"><span class="lineno"> 84</span> </div>
|
||||
<div class="line"><span class="lineno"> 85</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<T></a>> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>(N_A);</div>
|
||||
<div class="line"><span class="lineno"> 86</span> </div>
|
||||
<div class="line"><span class="lineno"> 87</span> <span class="keywordflow">if</span> (A[0].size() != B.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>()) {</div>
|
||||
<div class="line"><span class="lineno"> 88</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"Number of columns in A != Number of rows in B ("</span></div>
|
||||
<div class="line"><span class="lineno"> 89</span> << A[0].<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() << <span class="stringliteral">", "</span> << B.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() << <span class="stringliteral">")"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
|
||||
<div class="line"><span class="lineno"> 90</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><span class="lineno"> 91</span> }</div>
|
||||
<div class="line"><span class="lineno"> 92</span> </div>
|
||||
<div class="line"><span class="lineno"> 93</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < N_A; row++) {</div>
|
||||
<div class="line"><span class="lineno"> 94</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<T></a> v(N_B);</div>
|
||||
<div class="line"><span class="lineno"> 95</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> col = 0; col < N_B; col++) {</div>
|
||||
<div class="line"><span class="lineno"> 96</span> v[col] = <span class="keyword">static_cast<</span>T<span class="keyword">></span>(0);</div>
|
||||
<div class="line"><span class="lineno"> 97</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> j = 0; j < B.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); j++) {</div>
|
||||
<div class="line"><span class="lineno"> 98</span> v[col] += A[row][j] * B[j][col];</div>
|
||||
<div class="line"><span class="lineno"> 99</span> }</div>
|
||||
<div class="line"><span class="lineno"> 100</span> }</div>
|
||||
<div class="line"><span class="lineno"> 101</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>[row] = v;</div>
|
||||
<div class="line"><span class="lineno"> 102</span> }</div>
|
||||
<div class="line"><span class="lineno"> 103</span> </div>
|
||||
<div class="line"><span class="lineno"> 104</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><span class="lineno"> 105</span>}</div>
|
||||
</div><!-- fragment -->
|
||||
</div>
|
||||
</div>
|
||||
@@ -698,25 +698,25 @@ template<typename T > </div>
|
||||
</table>
|
||||
</div><div class="memdoc">
|
||||
<p >multiplication of a matrix with a column vector </p><dl class="section return"><dt>Returns</dt><dd>resultant vector </dd></dl>
|
||||
<div class="fragment"><div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> {</div>
|
||||
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="comment">// Number of rows in A</span></div>
|
||||
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="keywordtype">size_t</span> N_A = A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
|
||||
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> </div>
|
||||
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<T></a> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>(N_A);</div>
|
||||
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> </div>
|
||||
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keywordflow">if</span> (A[0].size() != B.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>()) {</div>
|
||||
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"Number of columns in A != Number of rows in B ("</span></div>
|
||||
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> << A[0].<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() << <span class="stringliteral">", "</span> << B.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() << <span class="stringliteral">")"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
|
||||
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> }</div>
|
||||
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> </div>
|
||||
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < N_A; row++) {</div>
|
||||
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>[row] = <span class="keyword">static_cast<</span>T<span class="keyword">></span>(0);</div>
|
||||
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> j = 0; j < B.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); j++) result[row] += A[row][j] * B[j];</div>
|
||||
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> }</div>
|
||||
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> </div>
|
||||
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span>}</div>
|
||||
<div class="fragment"><div class="line"><span class="lineno"> 113</span> {</div>
|
||||
<div class="line"><span class="lineno"> 114</span> <span class="comment">// Number of rows in A</span></div>
|
||||
<div class="line"><span class="lineno"> 115</span> <span class="keywordtype">size_t</span> N_A = A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
|
||||
<div class="line"><span class="lineno"> 116</span> </div>
|
||||
<div class="line"><span class="lineno"> 117</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<T></a> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>(N_A);</div>
|
||||
<div class="line"><span class="lineno"> 118</span> </div>
|
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<div class="line"><span class="lineno"> 119</span> <span class="keywordflow">if</span> (A[0].size() != B.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>()) {</div>
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||||
<div class="line"><span class="lineno"> 120</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"Number of columns in A != Number of rows in B ("</span></div>
|
||||
<div class="line"><span class="lineno"> 121</span> << A[0].<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() << <span class="stringliteral">", "</span> << B.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() << <span class="stringliteral">")"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
|
||||
<div class="line"><span class="lineno"> 122</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><span class="lineno"> 123</span> }</div>
|
||||
<div class="line"><span class="lineno"> 124</span> </div>
|
||||
<div class="line"><span class="lineno"> 125</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < N_A; row++) {</div>
|
||||
<div class="line"><span class="lineno"> 126</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>[row] = <span class="keyword">static_cast<</span>T<span class="keyword">></span>(0);</div>
|
||||
<div class="line"><span class="lineno"> 127</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> j = 0; j < B.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); j++) result[row] += A[row][j] * B[j];</div>
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<div class="line"><span class="lineno"> 128</span> }</div>
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<div class="line"><span class="lineno"> 129</span> </div>
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<div class="line"><span class="lineno"> 130</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><span class="lineno"> 131</span>}</div>
|
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</div>
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</div>
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@@ -748,18 +748,18 @@ template<typename T > </div>
|
||||
</table>
|
||||
</div><div class="memdoc">
|
||||
<p >post-multiplication of a vector by a scalar </p><dl class="section return"><dt>Returns</dt><dd>resultant vector </dd></dl>
|
||||
<div class="fragment"><div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> {</div>
|
||||
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> <span class="comment">// Number of rows in A</span></div>
|
||||
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> <span class="keywordtype">size_t</span> N_A = A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
|
||||
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> </div>
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||||
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>(N_A);</div>
|
||||
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> </div>
|
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < N_A; row++) {</div>
|
||||
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>[row] = A[row] * <span class="keyword">static_cast<</span><span class="keywordtype">float</span><span class="keyword">></span>(scalar);</div>
|
||||
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> }</div>
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||||
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> </div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span>}</div>
|
||||
<div class="fragment"><div class="line"><span class="lineno"> 156</span> {</div>
|
||||
<div class="line"><span class="lineno"> 157</span> <span class="comment">// Number of rows in A</span></div>
|
||||
<div class="line"><span class="lineno"> 158</span> <span class="keywordtype">size_t</span> N_A = A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
|
||||
<div class="line"><span class="lineno"> 159</span> </div>
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<div class="line"><span class="lineno"> 160</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>(N_A);</div>
|
||||
<div class="line"><span class="lineno"> 161</span> </div>
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<div class="line"><span class="lineno"> 162</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < N_A; row++) {</div>
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<div class="line"><span class="lineno"> 163</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>[row] = A[row] * <span class="keyword">static_cast<</span><span class="keywordtype">float</span><span class="keyword">></span>(scalar);</div>
|
||||
<div class="line"><span class="lineno"> 164</span> }</div>
|
||||
<div class="line"><span class="lineno"> 165</span> </div>
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||||
<div class="line"><span class="lineno"> 166</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><span class="lineno"> 167</span>}</div>
|
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<div class="dyncontent">
|
||||
@@ -797,21 +797,21 @@ template<typename T > </div>
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||||
</table>
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||||
</div><div class="memdoc">
|
||||
<p >addition of two vectors of identical lengths </p><dl class="section return"><dt>Returns</dt><dd>resultant vector </dd></dl>
|
||||
<div class="fragment"><div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> {</div>
|
||||
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> <span class="comment">// Number of rows in A</span></div>
|
||||
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> = A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
|
||||
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> </div>
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||||
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<T></a> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>(N);</div>
|
||||
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> </div>
|
||||
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> <span class="keywordflow">if</span> (B.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() != N) {</div>
|
||||
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"Vector dimensions shouldbe identical!"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
|
||||
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> <span class="keywordflow">return</span> A;</div>
|
||||
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> }</div>
|
||||
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> </div>
|
||||
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; row++) result[row] = A[row] + B[row];</div>
|
||||
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> </div>
|
||||
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span>}</div>
|
||||
<div class="fragment"><div class="line"><span class="lineno"> 204</span> {</div>
|
||||
<div class="line"><span class="lineno"> 205</span> <span class="comment">// Number of rows in A</span></div>
|
||||
<div class="line"><span class="lineno"> 206</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> = A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
|
||||
<div class="line"><span class="lineno"> 207</span> </div>
|
||||
<div class="line"><span class="lineno"> 208</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<T></a> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>(N);</div>
|
||||
<div class="line"><span class="lineno"> 209</span> </div>
|
||||
<div class="line"><span class="lineno"> 210</span> <span class="keywordflow">if</span> (B.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() != N) {</div>
|
||||
<div class="line"><span class="lineno"> 211</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"Vector dimensions shouldbe identical!"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
|
||||
<div class="line"><span class="lineno"> 212</span> <span class="keywordflow">return</span> A;</div>
|
||||
<div class="line"><span class="lineno"> 213</span> }</div>
|
||||
<div class="line"><span class="lineno"> 214</span> </div>
|
||||
<div class="line"><span class="lineno"> 215</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; row++) result[row] = A[row] + B[row];</div>
|
||||
<div class="line"><span class="lineno"> 216</span> </div>
|
||||
<div class="line"><span class="lineno"> 217</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><span class="lineno"> 218</span>}</div>
|
||||
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||||
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||||
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|
||||
@@ -849,21 +849,21 @@ template<typename T > </div>
|
||||
</table>
|
||||
</div><div class="memdoc">
|
||||
<p >subtraction of two vectors of identical lengths </p><dl class="section return"><dt>Returns</dt><dd>resultant vector </dd></dl>
|
||||
<div class="fragment"><div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> {</div>
|
||||
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="comment">// Number of rows in A</span></div>
|
||||
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> = A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
|
||||
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> </div>
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||||
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<T></a> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>(N);</div>
|
||||
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> </div>
|
||||
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> <span class="keywordflow">if</span> (B.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() != N) {</div>
|
||||
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"Vector dimensions shouldbe identical!"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
|
||||
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> <span class="keywordflow">return</span> A;</div>
|
||||
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> }</div>
|
||||
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> </div>
|
||||
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; row++) result[row] = A[row] - B[row];</div>
|
||||
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> </div>
|
||||
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span>}</div>
|
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<div class="fragment"><div class="line"><span class="lineno"> 183</span> {</div>
|
||||
<div class="line"><span class="lineno"> 184</span> <span class="comment">// Number of rows in A</span></div>
|
||||
<div class="line"><span class="lineno"> 185</span> <span class="keywordtype">size_t</span> <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> = A.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>();</div>
|
||||
<div class="line"><span class="lineno"> 186</span> </div>
|
||||
<div class="line"><span class="lineno"> 187</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<T></a> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>(N);</div>
|
||||
<div class="line"><span class="lineno"> 188</span> </div>
|
||||
<div class="line"><span class="lineno"> 189</span> <span class="keywordflow">if</span> (B.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>() != N) {</div>
|
||||
<div class="line"><span class="lineno"> 190</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"Vector dimensions shouldbe identical!"</span> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
|
||||
<div class="line"><span class="lineno"> 191</span> <span class="keywordflow">return</span> A;</div>
|
||||
<div class="line"><span class="lineno"> 192</span> }</div>
|
||||
<div class="line"><span class="lineno"> 193</span> </div>
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<div class="line"><span class="lineno"> 194</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < <a class="code hl_variable" href="../../d6/d42/data__structures_2sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; row++) result[row] = A[row] - B[row];</div>
|
||||
<div class="line"><span class="lineno"> 195</span> </div>
|
||||
<div class="line"><span class="lineno"> 196</span> <span class="keywordflow">return</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>;</div>
|
||||
<div class="line"><span class="lineno"> 197</span>}</div>
|
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@@ -901,9 +901,9 @@ template<typename T > </div>
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<p >division of a vector by a scalar </p><dl class="section return"><dt>Returns</dt><dd>resultant vector </dd></dl>
|
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<div class="fragment"><div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> {</div>
|
||||
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> <span class="keywordflow">return</span> (1.f / scalar) * A;</div>
|
||||
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span>}</div>
|
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<div class="fragment"><div class="line"><span class="lineno"> 174</span> {</div>
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<div class="line"><span class="lineno"> 175</span> <span class="keywordflow">return</span> (1.f / scalar) * A;</div>
|
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<div class="line"><span class="lineno"> 176</span>}</div>
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@@ -935,20 +935,20 @@ template<typename T > </div>
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</table>
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<p >operator to print a matrix </p>
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||||
<div class="fragment"><div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> {</div>
|
||||
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">const</span> <span class="keywordtype">int</span> width = 10;</div>
|
||||
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">const</span> <span class="keywordtype">char</span> separator = <span class="charliteral">' '</span>;</div>
|
||||
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
|
||||
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < v.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); row++) {</div>
|
||||
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> col = 0; col < v[row].<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); col++) {</div>
|
||||
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> out << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/left.html">std::left</a> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/setw.html">std::setw</a>(width) << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/setfill.html">std::setfill</a>(separator)</div>
|
||||
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> << v[row][col];</div>
|
||||
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> }</div>
|
||||
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> out << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
|
||||
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> }</div>
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||||
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||||
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <span class="keywordflow">return</span> out;</div>
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||||
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span>}</div>
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<div class="fragment"><div class="line"><span class="lineno"> 23</span> {</div>
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||||
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||||
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||||
<div class="line"><span class="lineno"> 26</span> </div>
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||||
<div class="line"><span class="lineno"> 27</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> row = 0; row < v.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); row++) {</div>
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||||
<div class="line"><span class="lineno"> 28</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> col = 0; col < v[row].<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); col++) {</div>
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<div class="line"><span class="lineno"> 30</span> << v[row][col];</div>
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||||
<div class="line"><span class="lineno"> 33</span> }</div>
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@@ -989,17 +989,17 @@ template<typename T > </div>
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||||
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||||
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||||
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> out << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/left.html">std::left</a> << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/setw.html">std::setw</a>(width) << <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/setfill.html">std::setfill</a>(separator)</div>
|
||||
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> << v[row];</div>
|
||||
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|
||||
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|
||||
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordflow">return</span> out;</div>
|
||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
<div class="line"><span class="lineno"> 48</span> << v[row];</div>
|
||||
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|
||||
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|
||||
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|
||||
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||||
</div><!-- fragment --><div class="dynheader">
|
||||
Here is the call graph for this function:</div>
|
||||
<div class="dyncontent">
|
||||
@@ -1047,19 +1047,19 @@ template<typename T > </div>
|
||||
</dd>
|
||||
</dl>
|
||||
<dl class="section return"><dt>Returns</dt><dd>vector with regression values for each sample </dd></dl>
|
||||
<div class="fragment"><div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span> {</div>
|
||||
<div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<float></a> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>(X.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>());</div>
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|
||||
<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span> <span class="comment">// -> start with constant term</span></div>
|
||||
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|
||||
<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> cols = 0; cols < X[0].size(); cols++) {</div>
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<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>[rows] += beta[cols] * X[rows][cols];</div>
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<div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span> <span class="comment">// Nx1</span></div>
|
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|
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||||
<div class="line"><span class="lineno"> 356</span> </div>
|
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<div class="line"><span class="lineno"> 357</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> rows = 0; rows < X.<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); rows++) {</div>
|
||||
<div class="line"><span class="lineno"> 358</span> <span class="comment">// -> start with constant term</span></div>
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<div class="line"><span class="lineno"> 359</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>[rows] = beta[X[0].<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>()];</div>
|
||||
<div class="line"><span class="lineno"> 360</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> cols = 0; cols < X[0].size(); cols++) {</div>
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<div class="line"><span class="lineno"> 361</span> <a class="code hl_function" href="../../de/dc3/fibonacci__sum_8cpp.html#aadb40ac4c74a7efc0680b83eeee138aa">result</a>[rows] += beta[cols] * X[rows][cols];</div>
|
||||
<div class="line"><span class="lineno"> 362</span> }</div>
|
||||
<div class="line"><span class="lineno"> 363</span> }</div>
|
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<div class="line"><span class="lineno"> 364</span> <span class="comment">// Nx1</span></div>
|
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</div><!-- fragment -->
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@@ -1069,7 +1069,7 @@ template<typename T > </div>
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Reference in New Issue
Block a user