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<title>Algorithms_in_C++: machine_learning/adaline_learning.cpp File Reference</title>
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<title>TheAlgorithms/C++: machine_learning/adaline_learning.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="projectname">TheAlgorithms/C++<span id="projectnumber"> 1.0.0</span>
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</div>
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<div id="projectbrief">Set of algorithms implemented in C++.</div>
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<div id="projectbrief">All the algorithms implemented in C++</div>
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</td>
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</tr>
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</tbody>
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@@ -129,7 +146,9 @@ Include dependency graph for adaline_learning.cpp:</div>
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<div class="dyncontent">
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<div class="center"><div class="zoom"><iframe scrolling="no" frameborder="0" src="../../d7/da7/adaline__learning_8cpp__incl.svg" width="100%" height="394"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe></div></div>
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</div><table class="memberdecls">
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</div>
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<p><a href="../../d5/db0/adaline__learning_8cpp_source.html">Go to the source code of this file.</a></p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="nested-classes" name="nested-classes"></a>
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Classes</h2></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class  </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d6/d30/classmachine__learning_1_1adaline.html">machine_learning::adaline</a></td></tr>
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@@ -167,6 +186,8 @@ Variables</h2></td></tr>
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\]
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</p>
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<p> where \(x_j\) are the input features of a sample, \(w_j\) are the coefficients of the linear function and \(\theta\) is a constant. If we know the \(w_j\), then for any given set of features, \(y\) can be computed. Computing the \(w_j\) is a supervised learning algorithm wherein a set of features and their corresponding outputs are given and weights are computed using stochastic gradient descent method. </p>
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<p class="definition">Definition in file <a class="el" href="../../d5/db0/adaline__learning_8cpp_source.html">adaline_learning.cpp</a>.</p>
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</div><h2 class="groupheader">Function Documentation</h2>
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<a id="a3c04138a5bfe5d72780bb7e82a18e627" name="a3c04138a5bfe5d72780bb7e82a18e627"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a3c04138a5bfe5d72780bb7e82a18e627">◆ </a></span>main()</h2>
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@@ -187,43 +208,34 @@ Variables</h2></td></tr>
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</table>
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</div><div class="memdoc">
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<p>Main function </p>
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<p class="definition">Definition at line <a class="el" href="../../d5/db0/adaline__learning_8cpp_source.html#l00357">357</a> of file <a class="el" href="../../d5/db0/adaline__learning_8cpp_source.html">adaline_learning.cpp</a>.</p>
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<div class="fragment"><div class="line"><span class="lineno"> 357</span> {</div>
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<div class="line"><span class="lineno"> 358</span> <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/random/srand.html">std::srand</a>(<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/chrono/c/time.html">std::time</a>(<span class="keyword">nullptr</span>)); <span class="comment">// initialize random number generator</span></div>
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<div class="line"><span class="lineno"> 358</span> std::srand(std::time(<span class="keyword">nullptr</span>)); <span class="comment">// initialize random number generator</span></div>
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<div class="line"><span class="lineno"> 359</span> </div>
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<div class="line"><span class="lineno"> 360</span> <span class="keywordtype">double</span> eta = 0.1; <span class="comment">// default value of eta</span></div>
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<div class="line"><span class="lineno"> 361</span> <span class="keywordflow">if</span> (argc == 2) { <span class="comment">// read eta value from commandline argument if present</span></div>
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<div class="line"><span class="lineno"> 362</span> eta = <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/string/byte/strtof.html">strtof</a>(argv[1], <span class="keyword">nullptr</span>);</div>
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<div class="line"><span class="lineno"> 362</span> eta = strtof(argv[1], <span class="keyword">nullptr</span>);</div>
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<div class="line"><span class="lineno"> 363</span> }</div>
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<div class="line"><span class="lineno"> 364</span> </div>
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<div class="line"><span class="lineno"> 365</span> <a class="code hl_function" href="../../d3/dae/dsu__path__compression_8cpp.html#ae7880ce913f3058a35ff106d5be9e243">test1</a>(eta);</div>
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<div class="line"><span class="lineno"> 366</span> </div>
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<div class="line"><span class="lineno"> 367</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">"Press ENTER to continue..."</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"><span class="lineno"> 368</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a>.get();</div>
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<div class="line"><span class="lineno"> 367</span> std::cout << <span class="stringliteral">"Press ENTER to continue..."</span> << std::endl;</div>
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<div class="line"><span class="lineno"> 368</span> std::cin.get();</div>
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<div class="line"><span class="lineno"> 369</span> </div>
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<div class="line"><span class="lineno"> 370</span> <a class="code hl_function" href="../../d3/dae/dsu__path__compression_8cpp.html#a45d94ead4cf4e1ff9f87c38bc99f59ae">test2</a>(eta);</div>
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<div class="line"><span class="lineno"> 371</span> </div>
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<div class="line"><span class="lineno"> 372</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">"Press ENTER to continue..."</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"><span class="lineno"> 373</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a>.get();</div>
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<div class="line"><span class="lineno"> 372</span> std::cout << <span class="stringliteral">"Press ENTER to continue..."</span> << std::endl;</div>
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<div class="line"><span class="lineno"> 373</span> std::cin.get();</div>
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<div class="line"><span class="lineno"> 374</span> </div>
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<div class="line"><span class="lineno"> 375</span> <a class="code hl_function" href="../../dd/d0c/hamiltons__cycle_8cpp.html#a0cc94918b6831f308d4fe4fa27f08299">test3</a>(eta);</div>
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<div class="line"><span class="lineno"> 376</span> </div>
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<div class="line"><span class="lineno"> 377</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><span class="lineno"> 378</span>}</div>
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<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>
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<div class="ttc" id="abasic_ostream_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a></div></div>
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<div class="ttc" id="adsu__path__compression_8cpp_html_a45d94ead4cf4e1ff9f87c38bc99f59ae"><div class="ttname"><a href="../../d3/dae/dsu__path__compression_8cpp.html#a45d94ead4cf4e1ff9f87c38bc99f59ae">test2</a></div><div class="ttdeci">static void test2()</div><div class="ttdoc">Self-implementations, 2nd test.</div><div class="ttdef"><b>Definition</b> dsu_path_compression.cpp:187</div></div>
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<div class="ttc" id="adsu__path__compression_8cpp_html_ae7880ce913f3058a35ff106d5be9e243"><div class="ttname"><a href="../../d3/dae/dsu__path__compression_8cpp.html#ae7880ce913f3058a35ff106d5be9e243">test1</a></div><div class="ttdeci">static void test1()</div><div class="ttdoc">Self-test implementations, 1st test.</div><div class="ttdef"><b>Definition</b> dsu_path_compression.cpp:170</div></div>
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<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>
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||||
<div class="ttc" id="ahamiltons__cycle_8cpp_html_a0cc94918b6831f308d4fe4fa27f08299"><div class="ttname"><a href="../../dd/d0c/hamiltons__cycle_8cpp.html#a0cc94918b6831f308d4fe4fa27f08299">test3</a></div><div class="ttdeci">static void test3()</div><div class="ttdef"><b>Definition</b> hamiltons_cycle.cpp:122</div></div>
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<div class="ttc" id="asrand_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/numeric/random/srand.html">std::srand</a></div><div class="ttdeci">T srand(T... args)</div></div>
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||||
<div class="ttc" id="astrtof_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/byte/strtof.html">std::strtof</a></div><div class="ttdeci">T strtof(T... args)</div></div>
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||||
<div class="ttc" id="atime_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/chrono/c/time.html">std::time</a></div><div class="ttdeci">T time(T... args)</div></div>
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</div><!-- fragment --><div class="dynheader">
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Here is the call graph for this function:</div>
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<div class="dyncontent">
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||||
<div class="center"><div class="zoom"><iframe scrolling="no" frameborder="0" src="../../d5/db0/adaline__learning_8cpp_a3c04138a5bfe5d72780bb7e82a18e627_cgraph.svg" width="100%" height="600"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe></div></div>
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</div>
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<div class="ttc" id="adsu__path__compression_8cpp_html_a45d94ead4cf4e1ff9f87c38bc99f59ae"><div class="ttname"><a href="../../d3/dae/dsu__path__compression_8cpp.html#a45d94ead4cf4e1ff9f87c38bc99f59ae">test2</a></div><div class="ttdeci">static void test2()</div><div class="ttdoc">Self-implementations, 2nd test.</div><div class="ttdef"><b>Definition</b> <a href="../../d3/dae/dsu__path__compression_8cpp_source.html#l00187">dsu_path_compression.cpp:187</a></div></div>
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<div class="ttc" id="adsu__path__compression_8cpp_html_ae7880ce913f3058a35ff106d5be9e243"><div class="ttname"><a href="../../d3/dae/dsu__path__compression_8cpp.html#ae7880ce913f3058a35ff106d5be9e243">test1</a></div><div class="ttdeci">static void test1()</div><div class="ttdoc">Self-test implementations, 1st test.</div><div class="ttdef"><b>Definition</b> <a href="../../d3/dae/dsu__path__compression_8cpp_source.html#l00170">dsu_path_compression.cpp:170</a></div></div>
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||||
<div class="ttc" id="ahamiltons__cycle_8cpp_html_a0cc94918b6831f308d4fe4fa27f08299"><div class="ttname"><a href="../../dd/d0c/hamiltons__cycle_8cpp.html#a0cc94918b6831f308d4fe4fa27f08299">test3</a></div><div class="ttdeci">static void test3()</div><div class="ttdef"><b>Definition</b> <a href="../../dd/d0c/hamiltons__cycle_8cpp_source.html#l00122">hamiltons_cycle.cpp:122</a></div></div>
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</div><!-- fragment -->
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</div>
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<a id="a52053d88ea1bcbbed9aca67ab4eeb499" name="a52053d88ea1bcbbed9aca67ab4eeb499"></a>
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@@ -246,46 +258,41 @@ Here is the call graph for this function:</div>
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</table>
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</dd>
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</dl>
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<p class="definition">Definition at line <a class="el" href="../../d5/db0/adaline__learning_8cpp_source.html#l00224">224</a> of file <a class="el" href="../../d5/db0/adaline__learning_8cpp_source.html">adaline_learning.cpp</a>.</p>
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<div class="fragment"><div class="line"><span class="lineno"> 224</span> {</div>
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||||
<div class="line"><span class="lineno"> 225</span> <a class="code hl_class" href="../../d6/d30/classmachine__learning_1_1adaline.html">adaline</a> ada(2, eta); <span class="comment">// 2 features</span></div>
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<div class="line"><span class="lineno"> 226</span> </div>
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<div class="line"><span class="lineno"> 227</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="../../d8/dab/sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> = 10; <span class="comment">// number of sample points</span></div>
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<div class="line"><span class="lineno"> 228</span> </div>
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<div class="line"><span class="lineno"> 229</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array<std::vector<double></a>, <a class="code hl_variable" href="../../d8/dab/sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>> X = {</div>
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||||
<div class="line"><span class="lineno"> 230</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<double></a>({0, 1}), <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<double></a>({1, -2}),</div>
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<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<double></a>({2, 3}), <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<double></a>({3, -1}),</div>
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<div class="line"><span class="lineno"> 232</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<double></a>({4, 1}), <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<double></a>({6, -5}),</div>
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<div class="line"><span class="lineno"> 233</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<double></a>({-7, -3}), <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<double></a>({-8, 5}),</div>
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<div class="line"><span class="lineno"> 234</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<double></a>({-9, 2}), <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<double></a>({-10, -15})};</div>
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<div class="line"><span class="lineno"> 235</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array<int, N></a> y = {1, -1, 1, -1, -1,</div>
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<div class="line"><span class="lineno"> 229</span> std::array<std::vector<double>, <a class="code hl_variable" href="../../d8/dab/sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>> X = {</div>
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<div class="line"><span class="lineno"> 230</span> std::vector<double>({0, 1}), std::vector<double>({1, -2}),</div>
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<div class="line"><span class="lineno"> 231</span> std::vector<double>({2, 3}), std::vector<double>({3, -1}),</div>
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<div class="line"><span class="lineno"> 232</span> std::vector<double>({4, 1}), std::vector<double>({6, -5}),</div>
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<div class="line"><span class="lineno"> 233</span> std::vector<double>({-7, -3}), std::vector<double>({-8, 5}),</div>
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<div class="line"><span class="lineno"> 234</span> std::vector<double>({-9, 2}), std::vector<double>({-10, -15})};</div>
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<div class="line"><span class="lineno"> 235</span> std::array<int, N> y = {1, -1, 1, -1, -1,</div>
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<div class="line"><span class="lineno"> 236</span> -1, 1, 1, 1, -1}; <span class="comment">// corresponding y-values</span></div>
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<div class="line"><span class="lineno"> 237</span> </div>
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<div class="line"><span class="lineno"> 238</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 -------"</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"><span class="lineno"> 239</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">"Model before fit: "</span> << ada << <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"><span class="lineno"> 238</span> std::cout << <span class="stringliteral">"------- Test 1 -------"</span> << std::endl;</div>
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<div class="line"><span class="lineno"> 239</span> std::cout << <span class="stringliteral">"Model before fit: "</span> << ada << std::endl;</div>
|
||||
<div class="line"><span class="lineno"> 240</span> </div>
|
||||
<div class="line"><span class="lineno"> 241</span> ada.fit<<a class="code hl_variable" href="../../d8/dab/sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>>(X, y);</div>
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<div class="line"><span class="lineno"> 242</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">"Model after fit: "</span> << ada << <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"><span class="lineno"> 242</span> std::cout << <span class="stringliteral">"Model after fit: "</span> << ada << std::endl;</div>
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<div class="line"><span class="lineno"> 243</span> </div>
|
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<div class="line"><span class="lineno"> 244</span> <span class="keywordtype">int</span> predict = ada.predict({5, -3});</div>
|
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<div class="line"><span class="lineno"> 245</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">"Predict for x=(5,-3): "</span> << predict;</div>
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<div class="line"><span class="lineno"> 245</span> std::cout << <span class="stringliteral">"Predict for x=(5,-3): "</span> << predict;</div>
|
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<div class="line"><span class="lineno"> 246</span> assert(predict == -1);</div>
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<div class="line"><span class="lineno"> 247</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"</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"><span class="lineno"> 247</span> std::cout << <span class="stringliteral">" ...passed"</span> << std::endl;</div>
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<div class="line"><span class="lineno"> 248</span> </div>
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<div class="line"><span class="lineno"> 249</span> predict = ada.predict({5, 8});</div>
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<div class="line"><span class="lineno"> 250</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">"Predict for x=(5,8): "</span> << predict;</div>
|
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<div class="line"><span class="lineno"> 250</span> std::cout << <span class="stringliteral">"Predict for x=(5,8): "</span> << predict;</div>
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<div class="line"><span class="lineno"> 251</span> assert(predict == 1);</div>
|
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<div class="line"><span class="lineno"> 252</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"</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"><span class="lineno"> 252</span> std::cout << <span class="stringliteral">" ...passed"</span> << std::endl;</div>
|
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<div class="line"><span class="lineno"> 253</span>}</div>
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<div class="ttc" id="aarray_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/array.html">std::array</a></div></div>
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<div class="ttc" id="aclassmachine__learning_1_1adaline_html"><div class="ttname"><a href="../../d6/d30/classmachine__learning_1_1adaline.html">machine_learning::adaline</a></div><div class="ttdef"><b>Definition</b> adaline_learning.cpp:46</div></div>
|
||||
<div class="ttc" id="asparse__table_8cpp_html_a10f3ffb3f6f7e1b83d556b9c8de89a5d"><div class="ttname"><a href="../../d8/dab/sparse__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:48</div></div>
|
||||
<div class="ttc" id="avector_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a></div></div>
|
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<div class="center"><div class="zoom"><iframe scrolling="no" frameborder="0" src="../../d5/db0/adaline__learning_8cpp_a52053d88ea1bcbbed9aca67ab4eeb499_cgraph.svg" width="100%" height="588"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe></div></div>
|
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<div class="ttc" id="aclassmachine__learning_1_1adaline_html"><div class="ttname"><a href="../../d6/d30/classmachine__learning_1_1adaline.html">machine_learning::adaline</a></div><div class="ttdef"><b>Definition</b> <a href="../../d5/db0/adaline__learning_8cpp_source.html#l00046">adaline_learning.cpp:46</a></div></div>
|
||||
<div class="ttc" id="asparse__table_8cpp_html_a10f3ffb3f6f7e1b83d556b9c8de89a5d"><div class="ttname"><a href="../../d8/dab/sparse__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> <a href="../../d8/dab/sparse__table_8cpp_source.html#l00048">sparse_table.cpp:48</a></div></div>
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<a id="a379f7488a305f2571f2932b319931f82" name="a379f7488a305f2571f2932b319931f82"></a>
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@@ -308,52 +315,48 @@ Here is the call graph for this function:</div>
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<p class="definition">Definition at line <a class="el" href="../../d5/db0/adaline__learning_8cpp_source.html#l00262">262</a> of file <a class="el" href="../../d5/db0/adaline__learning_8cpp_source.html">adaline_learning.cpp</a>.</p>
|
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<div class="fragment"><div class="line"><span class="lineno"> 262</span> {</div>
|
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<div class="line"><span class="lineno"> 263</span> <a class="code hl_class" href="../../d6/d30/classmachine__learning_1_1adaline.html">adaline</a> ada(2, eta); <span class="comment">// 2 features</span></div>
|
||||
<div class="line"><span class="lineno"> 264</span> </div>
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<div class="line"><span class="lineno"> 265</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="../../d8/dab/sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> = 50; <span class="comment">// number of sample points</span></div>
|
||||
<div class="line"><span class="lineno"> 266</span> </div>
|
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<div class="line"><span class="lineno"> 267</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array<std::vector<double></a>, <a class="code hl_variable" href="../../d8/dab/sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>> X;</div>
|
||||
<div class="line"><span class="lineno"> 268</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array<int, N></a> Y{}; <span class="comment">// corresponding y-values</span></div>
|
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<div class="line"><span class="lineno"> 267</span> std::array<std::vector<double>, <a class="code hl_variable" href="../../d8/dab/sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>> X;</div>
|
||||
<div class="line"><span class="lineno"> 268</span> std::array<int, N> Y{}; <span class="comment">// corresponding y-values</span></div>
|
||||
<div class="line"><span class="lineno"> 269</span> </div>
|
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<div class="line"><span class="lineno"> 270</span> <span class="comment">// generate sample points in the interval</span></div>
|
||||
<div class="line"><span class="lineno"> 271</span> <span class="comment">// [-range2/100 , (range2-1)/100]</span></div>
|
||||
<div class="line"><span class="lineno"> 272</span> <span class="keywordtype">int</span> range = 500; <span class="comment">// sample points full-range</span></div>
|
||||
<div class="line"><span class="lineno"> 273</span> <span class="keywordtype">int</span> range2 = range >> 1; <span class="comment">// sample points half-range</span></div>
|
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<div class="line"><span class="lineno"> 274</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code hl_variable" href="../../d8/dab/sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; i++) {</div>
|
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<div class="line"><span class="lineno"> 275</span> <span class="keywordtype">double</span> x0 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/random/rand.html">std::rand</a>() % range) - range2) / 100.f;</div>
|
||||
<div class="line"><span class="lineno"> 276</span> <span class="keywordtype">double</span> x1 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/random/rand.html">std::rand</a>() % range) - range2) / 100.f;</div>
|
||||
<div class="line"><span class="lineno"> 277</span> X[i] = <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<double></a>({x0, x1});</div>
|
||||
<div class="line"><span class="lineno"> 275</span> <span class="keywordtype">double</span> x0 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(std::rand() % range) - range2) / 100.f;</div>
|
||||
<div class="line"><span class="lineno"> 276</span> <span class="keywordtype">double</span> x1 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(std::rand() % range) - range2) / 100.f;</div>
|
||||
<div class="line"><span class="lineno"> 277</span> X[i] = std::vector<double>({x0, x1});</div>
|
||||
<div class="line"><span class="lineno"> 278</span> Y[i] = (x0 + 3. * x1) > -1 ? 1 : -1;</div>
|
||||
<div class="line"><span class="lineno"> 279</span> }</div>
|
||||
<div class="line"><span class="lineno"> 280</span> </div>
|
||||
<div class="line"><span class="lineno"> 281</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 -------"</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"> 282</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">"Model before fit: "</span> << ada << <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"> 281</span> std::cout << <span class="stringliteral">"------- Test 2 -------"</span> << std::endl;</div>
|
||||
<div class="line"><span class="lineno"> 282</span> std::cout << <span class="stringliteral">"Model before fit: "</span> << ada << std::endl;</div>
|
||||
<div class="line"><span class="lineno"> 283</span> </div>
|
||||
<div class="line"><span class="lineno"> 284</span> ada.fit(X, Y);</div>
|
||||
<div class="line"><span class="lineno"> 285</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">"Model after fit: "</span> << ada << <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"> 285</span> std::cout << <span class="stringliteral">"Model after fit: "</span> << ada << std::endl;</div>
|
||||
<div class="line"><span class="lineno"> 286</span> </div>
|
||||
<div class="line"><span class="lineno"> 287</span> <span class="keywordtype">int</span> N_test_cases = 5;</div>
|
||||
<div class="line"><span class="lineno"> 288</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < N_test_cases; i++) {</div>
|
||||
<div class="line"><span class="lineno"> 289</span> <span class="keywordtype">double</span> x0 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/random/rand.html">std::rand</a>() % range) - range2) / 100.f;</div>
|
||||
<div class="line"><span class="lineno"> 290</span> <span class="keywordtype">double</span> x1 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/random/rand.html">std::rand</a>() % range) - range2) / 100.f;</div>
|
||||
<div class="line"><span class="lineno"> 289</span> <span class="keywordtype">double</span> x0 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(std::rand() % range) - range2) / 100.f;</div>
|
||||
<div class="line"><span class="lineno"> 290</span> <span class="keywordtype">double</span> x1 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(std::rand() % range) - range2) / 100.f;</div>
|
||||
<div class="line"><span class="lineno"> 291</span> </div>
|
||||
<div class="line"><span class="lineno"> 292</span> <span class="keywordtype">int</span> predict = ada.predict({x0, x1});</div>
|
||||
<div class="line"><span class="lineno"> 293</span> </div>
|
||||
<div class="line"><span class="lineno"> 294</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">"Predict for x=("</span> << x0 << <span class="stringliteral">","</span> << x1 << <span class="stringliteral">"): "</span> << predict;</div>
|
||||
<div class="line"><span class="lineno"> 294</span> std::cout << <span class="stringliteral">"Predict for x=("</span> << x0 << <span class="stringliteral">","</span> << x1 << <span class="stringliteral">"): "</span> << predict;</div>
|
||||
<div class="line"><span class="lineno"> 295</span> </div>
|
||||
<div class="line"><span class="lineno"> 296</span> <span class="keywordtype">int</span> expected_val = (x0 + 3. * x1) > -1 ? 1 : -1;</div>
|
||||
<div class="line"><span class="lineno"> 297</span> assert(predict == expected_val);</div>
|
||||
<div class="line"><span class="lineno"> 298</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"</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"> 298</span> std::cout << <span class="stringliteral">" ...passed"</span> << std::endl;</div>
|
||||
<div class="line"><span class="lineno"> 299</span> }</div>
|
||||
<div class="line"><span class="lineno"> 300</span>}</div>
|
||||
<div class="ttc" id="arand_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/numeric/random/rand.html">std::rand</a></div><div class="ttdeci">T rand(T... args)</div></div>
|
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<div class="center"><div class="zoom"><iframe scrolling="no" frameborder="0" src="../../d5/db0/adaline__learning_8cpp_a379f7488a305f2571f2932b319931f82_cgraph.svg" width="100%" height="588"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe></div></div>
|
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<a id="a992bdf1fdb0b9d414bcf7981d2d87aa9" name="a992bdf1fdb0b9d414bcf7981d2d87aa9"></a>
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@@ -377,54 +380,51 @@ Here is the call graph for this function:</div>
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<p class="definition">Definition at line <a class="el" href="../../d5/db0/adaline__learning_8cpp_source.html#l00313">313</a> of file <a class="el" href="../../d5/db0/adaline__learning_8cpp_source.html">adaline_learning.cpp</a>.</p>
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<div class="fragment"><div class="line"><span class="lineno"> 313</span> {</div>
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<div class="line"><span class="lineno"> 314</span> <a class="code hl_class" href="../../d6/d30/classmachine__learning_1_1adaline.html">adaline</a> ada(6, eta); <span class="comment">// 2 features</span></div>
|
||||
<div class="line"><span class="lineno"> 315</span> </div>
|
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<div class="line"><span class="lineno"> 316</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code hl_variable" href="../../d8/dab/sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a> = 100; <span class="comment">// number of sample points</span></div>
|
||||
<div class="line"><span class="lineno"> 317</span> </div>
|
||||
<div class="line"><span class="lineno"> 318</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array<std::vector<double></a>, <a class="code hl_variable" href="../../d8/dab/sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>> X;</div>
|
||||
<div class="line"><span class="lineno"> 319</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/array.html">std::array<int, N></a> Y{}; <span class="comment">// corresponding y-values</span></div>
|
||||
<div class="line"><span class="lineno"> 318</span> std::array<std::vector<double>, <a class="code hl_variable" href="../../d8/dab/sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>> X;</div>
|
||||
<div class="line"><span class="lineno"> 319</span> std::array<int, N> Y{}; <span class="comment">// corresponding y-values</span></div>
|
||||
<div class="line"><span class="lineno"> 320</span> </div>
|
||||
<div class="line"><span class="lineno"> 321</span> <span class="comment">// generate sample points in the interval</span></div>
|
||||
<div class="line"><span class="lineno"> 322</span> <span class="comment">// [-range2/100 , (range2-1)/100]</span></div>
|
||||
<div class="line"><span class="lineno"> 323</span> <span class="keywordtype">int</span> range = 200; <span class="comment">// sample points full-range</span></div>
|
||||
<div class="line"><span class="lineno"> 324</span> <span class="keywordtype">int</span> range2 = range >> 1; <span class="comment">// sample points half-range</span></div>
|
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<div class="line"><span class="lineno"> 325</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < <a class="code hl_variable" href="../../d8/dab/sparse__table_8cpp.html#a10f3ffb3f6f7e1b83d556b9c8de89a5d">N</a>; i++) {</div>
|
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<div class="line"><span class="lineno"> 326</span> <span class="keywordtype">double</span> x0 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/random/rand.html">std::rand</a>() % range) - range2) / 100.f;</div>
|
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<div class="line"><span class="lineno"> 327</span> <span class="keywordtype">double</span> x1 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/random/rand.html">std::rand</a>() % range) - range2) / 100.f;</div>
|
||||
<div class="line"><span class="lineno"> 328</span> <span class="keywordtype">double</span> x2 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/random/rand.html">std::rand</a>() % range) - range2) / 100.f;</div>
|
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<div class="line"><span class="lineno"> 329</span> X[i] = <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<double></a>({x0, x1, x2, x0 * x0, x1 * x1, x2 * x2});</div>
|
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<div class="line"><span class="lineno"> 326</span> <span class="keywordtype">double</span> x0 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(std::rand() % range) - range2) / 100.f;</div>
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<div class="line"><span class="lineno"> 327</span> <span class="keywordtype">double</span> x1 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(std::rand() % range) - range2) / 100.f;</div>
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<div class="line"><span class="lineno"> 328</span> <span class="keywordtype">double</span> x2 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(std::rand() % range) - range2) / 100.f;</div>
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<div class="line"><span class="lineno"> 329</span> X[i] = std::vector<double>({x0, x1, x2, x0 * x0, x1 * x1, x2 * x2});</div>
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<div class="line"><span class="lineno"> 330</span> Y[i] = ((x0 * x0) + (x1 * x1) + (x2 * x2)) <= 1.f ? 1 : -1;</div>
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<div class="line"><span class="lineno"> 331</span> }</div>
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<div class="line"><span class="lineno"> 332</span> </div>
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<div class="line"><span class="lineno"> 333</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 3 -------"</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"><span class="lineno"> 334</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">"Model before fit: "</span> << ada << <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"><span class="lineno"> 333</span> std::cout << <span class="stringliteral">"------- Test 3 -------"</span> << std::endl;</div>
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<div class="line"><span class="lineno"> 334</span> std::cout << <span class="stringliteral">"Model before fit: "</span> << ada << std::endl;</div>
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<div class="line"><span class="lineno"> 335</span> </div>
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<div class="line"><span class="lineno"> 336</span> ada.fit(X, Y);</div>
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<div class="line"><span class="lineno"> 337</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">"Model after fit: "</span> << ada << <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"><span class="lineno"> 337</span> std::cout << <span class="stringliteral">"Model after fit: "</span> << ada << std::endl;</div>
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<div class="line"><span class="lineno"> 338</span> </div>
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<div class="line"><span class="lineno"> 339</span> <span class="keywordtype">int</span> N_test_cases = 5;</div>
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<div class="line"><span class="lineno"> 340</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < N_test_cases; i++) {</div>
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<div class="line"><span class="lineno"> 341</span> <span class="keywordtype">double</span> x0 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/random/rand.html">std::rand</a>() % range) - range2) / 100.f;</div>
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||||
<div class="line"><span class="lineno"> 342</span> <span class="keywordtype">double</span> x1 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/random/rand.html">std::rand</a>() % range) - range2) / 100.f;</div>
|
||||
<div class="line"><span class="lineno"> 343</span> <span class="keywordtype">double</span> x2 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(<a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/random/rand.html">std::rand</a>() % range) - range2) / 100.f;</div>
|
||||
<div class="line"><span class="lineno"> 341</span> <span class="keywordtype">double</span> x0 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(std::rand() % range) - range2) / 100.f;</div>
|
||||
<div class="line"><span class="lineno"> 342</span> <span class="keywordtype">double</span> x1 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(std::rand() % range) - range2) / 100.f;</div>
|
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<div class="line"><span class="lineno"> 343</span> <span class="keywordtype">double</span> x2 = (<span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(std::rand() % range) - range2) / 100.f;</div>
|
||||
<div class="line"><span class="lineno"> 344</span> </div>
|
||||
<div class="line"><span class="lineno"> 345</span> <span class="keywordtype">int</span> predict = ada.predict({x0, x1, x2, x0 * x0, x1 * x1, x2 * x2});</div>
|
||||
<div class="line"><span class="lineno"> 346</span> </div>
|
||||
<div class="line"><span class="lineno"> 347</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">"Predict for x=("</span> << x0 << <span class="stringliteral">","</span> << x1 << <span class="stringliteral">","</span> << x2</div>
|
||||
<div class="line"><span class="lineno"> 347</span> std::cout << <span class="stringliteral">"Predict for x=("</span> << x0 << <span class="stringliteral">","</span> << x1 << <span class="stringliteral">","</span> << x2</div>
|
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<div class="line"><span class="lineno"> 348</span> << <span class="stringliteral">"): "</span> << predict;</div>
|
||||
<div class="line"><span class="lineno"> 349</span> </div>
|
||||
<div class="line"><span class="lineno"> 350</span> <span class="keywordtype">int</span> expected_val = ((x0 * x0) + (x1 * x1) + (x2 * x2)) <= 1.f ? 1 : -1;</div>
|
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<div class="line"><span class="lineno"> 351</span> assert(predict == expected_val);</div>
|
||||
<div class="line"><span class="lineno"> 352</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"</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"> 352</span> std::cout << <span class="stringliteral">" ...passed"</span> << std::endl;</div>
|
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<div class="line"><span class="lineno"> 353</span> }</div>
|
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<div class="line"><span class="lineno"> 354</span>}</div>
|
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