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<div class="title">vector_ops.hpp</div> </div>
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<a href="../../d8/d95/vector__ops_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * @file vector_ops.hpp</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * @author [Deep Raval](https://github.com/imdeep2905)</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * @brief Various functions for vectors associated with [NeuralNetwork (aka</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * Multilayer Perceptron)]</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * (https://en.wikipedia.org/wiki/Multilayer_perceptron).</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#ifndef VECTOR_OPS_FOR_NN</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#define VECTOR_OPS_FOR_NN</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>  </div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <algorithm></span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <chrono></span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <iostream></span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <random></span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <valarray></span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <vector></span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * @namespace machine_learning</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * @brief Machine Learning algorithms</span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">namespace </span><a class="code" href="../../d8/d77/namespacemachine__learning.html">machine_learning</a> {<span class="comment"></span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * Overloaded operator "<<" to print 2D vector</span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * @tparam T typename of the vector</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * @param out std::ostream to output</span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * @param A 2D vector to be printed</span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#a8e8b54aaa62ad7f906aec0756ca3a500"> 32</a></span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::ostream</a> &<a class="code" href="../../d8/d77/namespacemachine__learning.html#a8e8b54aaa62ad7f906aec0756ca3a500">operator<<</a>(<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::ostream</a> &out,</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> <span class="keyword">const</span> &A) {</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="comment">// Setting output precision to 4 in case of floating point numbers</span></div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  out.<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/ios_base/precision.html">precision</a>(4);</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> &a : A) { <span class="comment">// For each row in A</span></div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> &x : a) { <span class="comment">// For each element in row</span></div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << x << <span class="charliteral">' '</span>; <span class="comment">// print element</span></div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  }</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <a class="codeRef" 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 name="l00041"></a><span class="lineno"> 41</span>  }</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordflow">return</span> out;</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> }</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> * Overloaded operator "<<" to print a pair</span></div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> * @tparam T typename of the pair</span></div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> * @param out std::ostream to output</span></div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> * @param A Pair to be printed</span></div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#a2a282c162e12f193c58232f26f0fa62d"> 52</a></span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::ostream</a> &<a class="code" href="../../d8/d77/namespacemachine__learning.html#a8e8b54aaa62ad7f906aec0756ca3a500">operator<<</a>(<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::ostream</a> &out, <span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/utility/pair.html">std::pair<T, T></a> &A) {</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="comment">// Setting output precision to 4 in case of floating point numbers</span></div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  out.<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/ios_base/precision.html">precision</a>(4);</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="comment">// printing pair in the form (p, q)</span></div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <span class="stringliteral">"("</span> << A.first << <span class="stringliteral">", "</span> << A.second << <span class="stringliteral">")"</span>;</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">return</span> out;</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> }</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"> * Overloaded operator "<<" to print a 1D vector</span></div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"> * @tparam T typename of the vector</span></div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> * @param out std::ostream to output</span></div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"> * @param A 1D vector to be printed</span></div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#ad0302cde64c0479379be18286962f6df"> 67</a></span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::ostream</a> &<a class="code" href="../../d8/d77/namespacemachine__learning.html#a8e8b54aaa62ad7f906aec0756ca3a500">operator<<</a>(<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::ostream</a> &out, <span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a> &A) {</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">// Setting output precision to 4 in case of floating point numbers</span></div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  out.<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/ios_base/precision.html">precision</a>(4);</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> &a : A) { <span class="comment">// For every element in the vector.</span></div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << a << <span class="charliteral">' '</span>; <span class="comment">// Print element</span></div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  }</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> << <a class="codeRef" 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 name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">return</span> out;</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> }</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment"> * Function to insert element into 1D vector</span></div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment"> * @tparam T typename of the 1D vector and the element</span></div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment"> * @param A 1D vector in which element will to be inserted</span></div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment"> * @param ele element to be inserted</span></div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment"> * @return new resultant vector</span></div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#a725d4ccceda4f32c96348ba1d593cd3c"> 85</a></span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a> <a class="code" href="../../d8/d77/namespacemachine__learning.html#a725d4ccceda4f32c96348ba1d593cd3c">insert_element</a>(<span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a> &A, <span class="keyword">const</span> T &ele) {</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a> B; <span class="comment">// New 1D vector to store resultant vector</span></div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  B.resize(A.size() + 1); <span class="comment">// Resizing it accordingly</span></div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < A.size(); i++) { <span class="comment">// For every element in A</span></div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  B[i] = A[i]; <span class="comment">// Copy element in B</span></div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  }</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  B[B.size() - 1] = ele; <span class="comment">// Inserting new element in last position</span></div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">return</span> B; <span class="comment">// Return resultant vector</span></div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> }</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment"> * Function to remove first element from 1D vector</span></div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment"> * @tparam T typename of the vector</span></div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"> * @param A 1D vector from which first element will be removed</span></div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment"> * @return new resultant vector</span></div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#ad9d119e7520fa5c2d2428433f578c0bc"> 102</a></span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a> <a class="code" href="../../d8/d77/namespacemachine__learning.html#ad9d119e7520fa5c2d2428433f578c0bc">pop_front</a>(<span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a> &A) {</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a> B; <span class="comment">// New 1D vector to store resultant vector</span></div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  B.resize(A.size() - 1); <span class="comment">// Resizing it accordingly</span></div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 1; i < A.size();</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  i++) { <span class="comment">// // For every (except first) element in A</span></div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  B[i - 1] = A[i]; <span class="comment">// Copy element in B with left shifted position</span></div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  }</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">return</span> B; <span class="comment">// Return resultant vector</span></div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> }</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="comment"> * Function to remove last element from 1D vector</span></div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="comment"> * @tparam T typename of the vector</span></div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="comment"> * @param A 1D vector from which last element will be removed</span></div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment"> * @return new resultant vector</span></div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#a4dd9a9df9f8f05327bcf7b58b0a86576"> 119</a></span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a> <a class="code" href="../../d8/d77/namespacemachine__learning.html#a4dd9a9df9f8f05327bcf7b58b0a86576">pop_back</a>(<span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a> &A) {</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a> B; <span class="comment">// New 1D vector to store resultant vector</span></div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  B.resize(A.size() - 1); <span class="comment">// Resizing it accordingly</span></div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < A.size() - 1;</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  i++) { <span class="comment">// For every (except last) element in A</span></div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  B[i] = A[i]; <span class="comment">// Copy element in B</span></div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  }</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">return</span> B; <span class="comment">// Return resultant vector</span></div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> }</div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="comment"> * Function to equally shuffle two 3D vectors (used for shuffling training data)</span></div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="comment"> * @tparam T typename of the vector</span></div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="comment"> * @param A First 3D vector</span></div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="comment"> * @param B Second 3D vector</span></div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00136"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#a62a418f243cd52b49f59015dddff188e"> 136</a></span> <span class="keywordtype">void</span> <a class="code" href="../../d8/d77/namespacemachine__learning.html#a62a418f243cd52b49f59015dddff188e">equal_shuffle</a>(<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>>> &A,</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>>> &B) {</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="comment">// If two vectors have different sizes</span></div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">if</span> (A.size() != B.size()) {</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"ERROR ("</span> << __func__ << <span class="stringliteral">") : "</span>;</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a></div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  << <span class="stringliteral">"Can not equally shuffle two vectors with different sizes: "</span>;</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << A.size() << <span class="stringliteral">" and "</span> << B.size() << <a class="codeRef" 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 name="l00144"></a><span class="lineno"> 144</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/utility/program/exit.html">std::exit</a>(EXIT_FAILURE);</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  }</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < A.size(); i++) { <span class="comment">// For every element in A and B</span></div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="comment">// Genrating random index < size of A and B</span></div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/random/srand.html">std::srand</a>(<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/chrono/system_clock/now.html">std::chrono::system_clock::now</a>().time_since_epoch().count());</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordtype">size_t</span> random_index = <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/random/rand.html">std::rand</a>() % A.size();</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// Swap elements in both A and B with same random index</span></div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/swap.html">std::swap</a>(A[i], A[random_index]);</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/swap.html">std::swap</a>(B[i], B[random_index]);</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  }</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> }</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="comment"> * Function to initialize given 2D vector using uniform random initialization</span></div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="comment"> * @tparam T typename of the vector</span></div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="comment"> * @param A 2D vector to be initialized</span></div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="comment"> * @param shape required shape</span></div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment"> * @param low lower limit on value</span></div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="comment"> * @param high upper limit on value</span></div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00166"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#a73ee7ed3546ab9e8792a92336d0d14ab"> 166</a></span> <span class="keywordtype">void</span> <a class="code" href="../../d8/d77/namespacemachine__learning.html#a73ee7ed3546ab9e8792a92336d0d14ab">uniform_random_initialization</a>(<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &A,</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/utility/pair.html">std::pair<size_t, size_t></a> &shape,</div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keyword">const</span> T &low, <span class="keyword">const</span> T &high) {</div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  A.clear(); <span class="comment">// Making A empty</span></div>
|
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="comment">// Uniform distribution in range [low, high]</span></div>
|
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/random.html">std::default_random_engine</a> generator(</div>
|
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/chrono/system_clock/now.html">std::chrono::system_clock::now</a>().time_since_epoch().count());</div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/random/uniform_real_distribution.html">std::uniform_real_distribution<T></a> distribution(low, high);</div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < shape.first; i++) { <span class="comment">// For every row</span></div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a></div>
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  row; <span class="comment">// Making empty row which will be inserted in vector</span></div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  row.resize(shape.second);</div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> &r : row) { <span class="comment">// For every element in row</span></div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  r = distribution(generator); <span class="comment">// copy random number</span></div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  }</div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  A.push_back(row); <span class="comment">// Insert new row in vector</span></div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  }</div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> }</div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> <span class="comment">/**</span></div>
|
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="comment"> * Function to Intialize 2D vector as unit matrix</span></div>
|
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> <span class="comment"> * @tparam T typename of the vector</span></div>
|
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="comment"> * @param A 2D vector to be initialized</span></div>
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="comment"> * @param shape required shape</span></div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00193"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#abf136b863d804899647f46eeb2e1392b"> 193</a></span> <span class="keywordtype">void</span> <a class="code" href="../../d8/d77/namespacemachine__learning.html#abf136b863d804899647f46eeb2e1392b">unit_matrix_initialization</a>(<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &A,</div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/utility/pair.html">std::pair<size_t, size_t></a> &shape) {</div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  A.clear(); <span class="comment">// Making A empty</span></div>
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < shape.first; i++) {</div>
|
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a></div>
|
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  row; <span class="comment">// Making empty row which will be inserted in vector</span></div>
|
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  row.resize(shape.second);</div>
|
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<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  row[i] = T(1); <span class="comment">// Insert 1 at ith position</span></div>
|
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  A.push_back(row); <span class="comment">// Insert new row in vector</span></div>
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<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  }</div>
|
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<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> }</div>
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="comment">/**</span></div>
|
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<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="comment"> * Function to Intialize 2D vector as zeroes</span></div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="comment"> * @tparam T typename of the vector</span></div>
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<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> <span class="comment"> * @param A 2D vector to be initialized</span></div>
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment"> * @param shape required shape</span></div>
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<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00213"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#a4d136cbf20e3126ed9b934ab2d03f18b"> 213</a></span> <span class="keywordtype">void</span> <a class="code" href="../../d8/d77/namespacemachine__learning.html#a4d136cbf20e3126ed9b934ab2d03f18b">zeroes_initialization</a>(<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &A,</div>
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<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/utility/pair.html">std::pair<size_t, size_t></a> &shape) {</div>
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  A.clear(); <span class="comment">// Making A empty</span></div>
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < shape.first; i++) {</div>
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<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a></div>
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<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  row; <span class="comment">// Making empty row which will be inserted in vector</span></div>
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  row.resize(shape.second); <span class="comment">// By default all elements are zero</span></div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  A.push_back(row); <span class="comment">// Insert new row in vector</span></div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  }</div>
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<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordflow">return</span>;</div>
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<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> }</div>
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<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment"> * Function to get sum of all elements in 2D vector</span></div>
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<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment"> * @tparam T typename of the vector</span></div>
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<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment"> * @param A 2D vector for which sum is required</span></div>
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<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment"> * @return returns sum of all elements of 2D vector</span></div>
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<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00232"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#a5305cc18d11943d3dc0d66e70d7e9c44"> 232</a></span> T <a class="code" href="../../d8/d77/namespacemachine__learning.html#a5305cc18d11943d3dc0d66e70d7e9c44">sum</a>(<span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &A) {</div>
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<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  T cur_sum = 0; <span class="comment">// Initially sum is zero</span></div>
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<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> &a : A) { <span class="comment">// For every row in A</span></div>
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<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  cur_sum += a.sum(); <span class="comment">// Add sum of that row to current sum</span></div>
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<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  }</div>
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<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">return</span> cur_sum; <span class="comment">// Return sum</span></div>
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<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> }</div>
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<div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> <span class="comment"> * Function to get shape of given 2D vector</span></div>
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<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="comment"> * @tparam T typename of the vector</span></div>
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<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="comment"> * @param A 2D vector for which shape is required</span></div>
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<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="comment"> * @return shape as pair</span></div>
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<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00247"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#abe6b58ec16abe0f6f8ac195e04aa8abd"> 247</a></span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/utility/pair.html">std::pair<size_t, size_t></a> <a class="code" href="../../d8/d77/namespacemachine__learning.html#abe6b58ec16abe0f6f8ac195e04aa8abd">get_shape</a>(<span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &A) {</div>
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<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> sub_size = (*A.begin()).size();</div>
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<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keyword">auto</span> &a : A) {</div>
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<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="comment">// If supplied vector don't have same shape in all rows</span></div>
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<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordflow">if</span> (a.size() != sub_size) {</div>
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<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"ERROR ("</span> << __func__ << <span class="stringliteral">") : "</span>;</div>
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<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"Supplied vector is not 2D Matrix"</span> << <a class="codeRef" 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 name="l00254"></a><span class="lineno"> 254</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/utility/program/exit.html">std::exit</a>(EXIT_FAILURE);</div>
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<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  }</div>
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<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  }</div>
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<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keywordflow">return</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/utility/pair/make_pair.html">std::make_pair</a>(A.size(), sub_size); <span class="comment">// Return shape as pair</span></div>
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<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> }</div>
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<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00261"></a><span class="lineno"> 261</span> <span class="comment"> * Function to scale given 3D vector using min-max scaler</span></div>
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<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="comment"> * @tparam T typename of the vector</span></div>
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<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="comment"> * @param A 3D vector which will be scaled</span></div>
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<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="comment"> * @param low new minimum value</span></div>
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<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="comment"> * @param high new maximum value</span></div>
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<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="comment"> * @return new scaled 3D vector</span></div>
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<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00269"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#a05b9445c6ab65053b9bf9897a96af82d"> 269</a></span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<std::valarray<T></a>>> <a class="code" href="../../d8/d77/namespacemachine__learning.html#a05b9445c6ab65053b9bf9897a96af82d">minmax_scaler</a>(</div>
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<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>>> &A, <span class="keyword">const</span> T &low,</div>
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<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keyword">const</span> T &high) {</div>
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<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::vector<std::valarray<T></a>>> B =</div>
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<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  A; <span class="comment">// Copying into new vector B</span></div>
|
|
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keyword">const</span> <span class="keyword">auto</span> shape = <a class="code" href="../../d8/d77/namespacemachine__learning.html#abe6b58ec16abe0f6f8ac195e04aa8abd">get_shape</a>(B[0]); <span class="comment">// Storing shape of B's every element</span></div>
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<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="comment">// As this function is used for scaling training data vector should be of</span></div>
|
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<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="comment">// shape (1, X)</span></div>
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<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="keywordflow">if</span> (shape.first != 1) {</div>
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<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"ERROR ("</span> << __func__ << <span class="stringliteral">") : "</span>;</div>
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|
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a></div>
|
|
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  << <span class="stringliteral">"Supplied vector is not supported for minmax scaling, shape: "</span>;</div>
|
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<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << shape << <a class="codeRef" 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 name="l00282"></a><span class="lineno"> 282</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/utility/program/exit.html">std::exit</a>(EXIT_FAILURE);</div>
|
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<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  }</div>
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<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < shape.second; i++) {</div>
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<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  T min = B[0][0][i], max = B[0][0][i];</div>
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<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> j = 0; j < B.<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); j++) {</div>
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<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="comment">// Updating minimum and maximum values</span></div>
|
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<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  min = <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/min.html">std::min</a>(min, B[j][0][i]);</div>
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<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  max = <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/max.html">std::max</a>(max, B[j][0][i]);</div>
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<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  }</div>
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<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> j = 0; j < B.<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/size.html">size</a>(); j++) {</div>
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<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="comment">// Applying min-max scaler formula</span></div>
|
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<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  B[j][0][i] =</div>
|
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<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  ((B[j][0][i] - min) / (max - min)) * (high - low) + low;</div>
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<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  }</div>
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<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  }</div>
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<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordflow">return</span> B; <span class="comment">// Return new resultant 3D vector</span></div>
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<div class="line"><a name="l00298"></a><span class="lineno"> 298</span> }</div>
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<div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00301"></a><span class="lineno"> 301</span> <span class="comment"> * Function to get index of maximum element in 2D vector</span></div>
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<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> <span class="comment"> * @tparam T typename of the vector</span></div>
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<div class="line"><a name="l00303"></a><span class="lineno"> 303</span> <span class="comment"> * @param A 2D vector for which maximum index is required</span></div>
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<div class="line"><a name="l00304"></a><span class="lineno"> 304</span> <span class="comment"> * @return index of maximum element</span></div>
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<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00307"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#a1b42d24ad7bedbfa8e5b59fe96987a44"> 307</a></span> <span class="keywordtype">size_t</span> <a class="code" href="../../d8/d77/namespacemachine__learning.html#a1b42d24ad7bedbfa8e5b59fe96987a44">argmax</a>(<span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &A) {</div>
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<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keyword">const</span> <span class="keyword">auto</span> shape = <a class="code" href="../../d8/d77/namespacemachine__learning.html#abe6b58ec16abe0f6f8ac195e04aa8abd">get_shape</a>(A);</div>
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<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="comment">// As this function is used on predicted (or target) vector, shape should be</span></div>
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<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="comment">// (1, X)</span></div>
|
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<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">if</span> (shape.first != 1) {</div>
|
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<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"ERROR ("</span> << __func__ << <span class="stringliteral">") : "</span>;</div>
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<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"Supplied vector is ineligible for argmax"</span> << <a class="codeRef" 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 name="l00314"></a><span class="lineno"> 314</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/utility/program/exit.html">std::exit</a>(EXIT_FAILURE);</div>
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<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  }</div>
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<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="comment">// Return distance of max element from first element (i.e. index)</span></div>
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<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keywordflow">return</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/iterator/distance.html">std::distance</a>(<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/iterator/begin.html">std::begin</a>(A[0]),</div>
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<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/algorithm/max_element.html">std::max_element</a>(<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/iterator/begin.html">std::begin</a>(A[0]), <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/iterator/end.html">std::end</a>(A[0])));</div>
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<div class="line"><a name="l00319"></a><span class="lineno"> 319</span> }</div>
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<div class="line"><a name="l00320"></a><span class="lineno"> 320</span> <span class="comment"></span> </div>
|
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<div class="line"><a name="l00321"></a><span class="lineno"> 321</span> <span class="comment">/**</span></div>
|
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<div class="line"><a name="l00322"></a><span class="lineno"> 322</span> <span class="comment"> * Function which applys supplied function to every element of 2D vector</span></div>
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<div class="line"><a name="l00323"></a><span class="lineno"> 323</span> <span class="comment"> * @tparam T typename of the vector</span></div>
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<div class="line"><a name="l00324"></a><span class="lineno"> 324</span> <span class="comment"> * @param A 2D vector on which function will be applied</span></div>
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<div class="line"><a name="l00325"></a><span class="lineno"> 325</span> <span class="comment"> * @param func Function to be applied</span></div>
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<div class="line"><a name="l00326"></a><span class="lineno"> 326</span> <span class="comment"> * @return new resultant vector</span></div>
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<div class="line"><a name="l00327"></a><span class="lineno"> 327</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00329"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#a8b3b06a63bd16b91237c85a295309774"> 329</a></span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::valarray<T></a>> <a class="code" href="../../d8/d77/namespacemachine__learning.html#a8b3b06a63bd16b91237c85a295309774">apply_function</a>(</div>
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<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &A, T (*func)(<span class="keyword">const</span> T &)) {</div>
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<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::valarray<double></a>> B =</div>
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<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  A; <span class="comment">// New vector to store resultant vector</span></div>
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<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> &b : B) { <span class="comment">// For every row in vector</span></div>
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<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  b = b.apply(func); <span class="comment">// Apply function to that row</span></div>
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<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  }</div>
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<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keywordflow">return</span> B; <span class="comment">// Return new resultant 2D vector</span></div>
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<div class="line"><a name="l00337"></a><span class="lineno"> 337</span> }</div>
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<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00339"></a><span class="lineno"> 339</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> <span class="comment"> * Overloaded operator "*" to multiply given 2D vector with scaler</span></div>
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<div class="line"><a name="l00341"></a><span class="lineno"> 341</span> <span class="comment"> * @tparam T typename of both vector and the scaler</span></div>
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<div class="line"><a name="l00342"></a><span class="lineno"> 342</span> <span class="comment"> * @param A 2D vector to which scaler will be multiplied</span></div>
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<div class="line"><a name="l00343"></a><span class="lineno"> 343</span> <span class="comment"> * @param val Scaler value which will be multiplied</span></div>
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<div class="line"><a name="l00344"></a><span class="lineno"> 344</span> <span class="comment"> * @return new resultant vector</span></div>
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<div class="line"><a name="l00345"></a><span class="lineno"> 345</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00346"></a><span class="lineno"> 346</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00347"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#ab58fb68da2cfc5326d3da0cba6f58118"> 347</a></span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::valarray<T></a>> <a class="code" href="../../d8/d77/namespacemachine__learning.html#ab58fb68da2cfc5326d3da0cba6f58118">operator*</a>(<span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &A,</div>
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<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keyword">const</span> T &val) {</div>
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<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::valarray<double></a>> B =</div>
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<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  A; <span class="comment">// New vector to store resultant vector</span></div>
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<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> &b : B) { <span class="comment">// For every row in vector</span></div>
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<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  b = b * val; <span class="comment">// Multiply row with scaler</span></div>
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<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  }</div>
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<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="keywordflow">return</span> B; <span class="comment">// Return new resultant 2D vector</span></div>
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<div class="line"><a name="l00355"></a><span class="lineno"> 355</span> }</div>
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<div class="line"><a name="l00356"></a><span class="lineno"> 356</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00357"></a><span class="lineno"> 357</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00358"></a><span class="lineno"> 358</span> <span class="comment"> * Overloaded operator "/" to divide given 2D vector with scaler</span></div>
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<div class="line"><a name="l00359"></a><span class="lineno"> 359</span> <span class="comment"> * @tparam T typename of the vector and the scaler</span></div>
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<div class="line"><a name="l00360"></a><span class="lineno"> 360</span> <span class="comment"> * @param A 2D vector to which scaler will be divided</span></div>
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<div class="line"><a name="l00361"></a><span class="lineno"> 361</span> <span class="comment"> * @param val Scaler value which will be divided</span></div>
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<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> <span class="comment"> * @return new resultant vector</span></div>
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<div class="line"><a name="l00363"></a><span class="lineno"> 363</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00364"></a><span class="lineno"> 364</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00365"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#a2055c2f3a076b3d4146aade5eb35666d"> 365</a></span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::valarray<T></a>> <a class="code" href="../../d8/d77/namespacemachine__learning.html#a2055c2f3a076b3d4146aade5eb35666d">operator/</a>(<span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &A,</div>
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<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keyword">const</span> T &val) {</div>
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<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::valarray<double></a>> B =</div>
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<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  A; <span class="comment">// New vector to store resultant vector</span></div>
|
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<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> &b : B) { <span class="comment">// For every row in vector</span></div>
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<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  b = b / val; <span class="comment">// Divide row with scaler</span></div>
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<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  }</div>
|
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<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <span class="keywordflow">return</span> B; <span class="comment">// Return new resultant 2D vector</span></div>
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<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> }</div>
|
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<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="comment"></span> </div>
|
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<div class="line"><a name="l00375"></a><span class="lineno"> 375</span> <span class="comment">/**</span></div>
|
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<div class="line"><a name="l00376"></a><span class="lineno"> 376</span> <span class="comment"> * Function to get transpose of 2D vector</span></div>
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<div class="line"><a name="l00377"></a><span class="lineno"> 377</span> <span class="comment"> * @tparam T typename of the vector</span></div>
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<div class="line"><a name="l00378"></a><span class="lineno"> 378</span> <span class="comment"> * @param A 2D vector which will be transposed</span></div>
|
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<div class="line"><a name="l00379"></a><span class="lineno"> 379</span> <span class="comment"> * @return new resultant vector</span></div>
|
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<div class="line"><a name="l00380"></a><span class="lineno"> 380</span> <span class="comment"> */</span></div>
|
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<div class="line"><a name="l00381"></a><span class="lineno"> 381</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
|
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<div class="line"><a name="l00382"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#ac7d9b358f1ef2ba2a1d475a5452ec41f"> 382</a></span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::valarray<T></a>> <a class="code" href="../../d8/d77/namespacemachine__learning.html#ac7d9b358f1ef2ba2a1d475a5452ec41f">transpose</a>(</div>
|
|
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &A) {</div>
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|
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keyword">const</span> <span class="keyword">auto</span> shape = <a class="code" href="../../d8/d77/namespacemachine__learning.html#abe6b58ec16abe0f6f8ac195e04aa8abd">get_shape</a>(A); <span class="comment">// Current shape of vector</span></div>
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|
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::valarray<T></a>> B; <span class="comment">// New vector to store result</span></div>
|
|
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="comment">// Storing transpose values of A in B</span></div>
|
|
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> j = 0; j < shape.second; j++) {</div>
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|
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a> row;</div>
|
|
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  row.resize(shape.first);</div>
|
|
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < shape.first; i++) {</div>
|
|
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  row[i] = A[i][j];</div>
|
|
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  }</div>
|
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<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  B.<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">push_back</a>(row);</div>
|
|
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  }</div>
|
|
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <span class="keywordflow">return</span> B; <span class="comment">// Return new resultant 2D vector</span></div>
|
|
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> }</div>
|
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<div class="line"><a name="l00397"></a><span class="lineno"> 397</span> <span class="comment"></span> </div>
|
|
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span> <span class="comment">/**</span></div>
|
|
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span> <span class="comment"> * Overloaded operator "+" to add two 2D vectors</span></div>
|
|
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span> <span class="comment"> * @tparam T typename of the vector</span></div>
|
|
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span> <span class="comment"> * @param A First 2D vector</span></div>
|
|
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span> <span class="comment"> * @param B Second 2D vector</span></div>
|
|
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span> <span class="comment"> * @return new resultant vector</span></div>
|
|
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span> <span class="comment"> */</span></div>
|
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<div class="line"><a name="l00405"></a><span class="lineno"> 405</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00406"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#a9225f0ded976096b45ffe13c75d33c05"> 406</a></span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::valarray<T></a>> <a class="code" href="../../d8/d77/namespacemachine__learning.html#a9225f0ded976096b45ffe13c75d33c05">operator+</a>(</div>
|
|
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &A,</div>
|
|
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &B) {</div>
|
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<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  <span class="keyword">const</span> <span class="keyword">auto</span> shape_a = <a class="code" href="../../d8/d77/namespacemachine__learning.html#abe6b58ec16abe0f6f8ac195e04aa8abd">get_shape</a>(A);</div>
|
|
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="keyword">const</span> <span class="keyword">auto</span> shape_b = <a class="code" href="../../d8/d77/namespacemachine__learning.html#abe6b58ec16abe0f6f8ac195e04aa8abd">get_shape</a>(B);</div>
|
|
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  <span class="comment">// If vectors don't have equal shape</span></div>
|
|
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="keywordflow">if</span> (shape_a.first != shape_b.first || shape_a.second != shape_b.second) {</div>
|
|
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"ERROR ("</span> << __func__ << <span class="stringliteral">") : "</span>;</div>
|
|
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"Supplied vectors have different shapes "</span>;</div>
|
|
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << shape_a << <span class="stringliteral">" and "</span> << shape_b << <a class="codeRef" 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 name="l00416"></a><span class="lineno"> 416</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/utility/program/exit.html">std::exit</a>(EXIT_FAILURE);</div>
|
|
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  }</div>
|
|
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::valarray<T></a>> C;</div>
|
|
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < A.size(); i++) { <span class="comment">// For every row</span></div>
|
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<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  C.<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">push_back</a>(A[i] + B[i]); <span class="comment">// Elementwise addition</span></div>
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<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  }</div>
|
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<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <span class="keywordflow">return</span> C; <span class="comment">// Return new resultant 2D vector</span></div>
|
|
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span> }</div>
|
|
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span> <span class="comment"></span> </div>
|
|
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span> <span class="comment">/**</span></div>
|
|
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span> <span class="comment"> * Overloaded operator "-" to add subtract 2D vectors</span></div>
|
|
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span> <span class="comment"> * @tparam T typename of the vector</span></div>
|
|
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span> <span class="comment"> * @param A First 2D vector</span></div>
|
|
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span> <span class="comment"> * @param B Second 2D vector</span></div>
|
|
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span> <span class="comment"> * @return new resultant vector</span></div>
|
|
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span> <span class="comment"> */</span></div>
|
|
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
|
|
<div class="line"><a name="l00433"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#a5f42063207181529413d812ade52f58e"> 433</a></span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::valarray<T></a>> <a class="code" href="../../d8/d77/namespacemachine__learning.html#a5f42063207181529413d812ade52f58e">operator-</a>(</div>
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|
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &A,</div>
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<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &B) {</div>
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<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="keyword">const</span> <span class="keyword">auto</span> shape_a = <a class="code" href="../../d8/d77/namespacemachine__learning.html#abe6b58ec16abe0f6f8ac195e04aa8abd">get_shape</a>(A);</div>
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<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="keyword">const</span> <span class="keyword">auto</span> shape_b = <a class="code" href="../../d8/d77/namespacemachine__learning.html#abe6b58ec16abe0f6f8ac195e04aa8abd">get_shape</a>(B);</div>
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<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="comment">// If vectors don't have equal shape</span></div>
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<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keywordflow">if</span> (shape_a.first != shape_b.first || shape_a.second != shape_b.second) {</div>
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<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"ERROR ("</span> << __func__ << <span class="stringliteral">") : "</span>;</div>
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<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"Supplied vectors have different shapes "</span>;</div>
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<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << shape_a << <span class="stringliteral">" and "</span> << shape_b << <a class="codeRef" 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 name="l00443"></a><span class="lineno"> 443</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/utility/program/exit.html">std::exit</a>(EXIT_FAILURE);</div>
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<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  }</div>
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<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::valarray<T></a>> C; <span class="comment">// Vector to store result</span></div>
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<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < A.size(); i++) { <span class="comment">// For every row</span></div>
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<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  C.<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">push_back</a>(A[i] - B[i]); <span class="comment">// Elementwise substraction</span></div>
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<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  }</div>
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<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="keywordflow">return</span> C; <span class="comment">// Return new resultant 2D vector</span></div>
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<div class="line"><a name="l00450"></a><span class="lineno"> 450</span> }</div>
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<div class="line"><a name="l00451"></a><span class="lineno"> 451</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00452"></a><span class="lineno"> 452</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00453"></a><span class="lineno"> 453</span> <span class="comment"> * Function to multiply two 2D vectors</span></div>
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<div class="line"><a name="l00454"></a><span class="lineno"> 454</span> <span class="comment"> * @tparam T typename of the vector</span></div>
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<div class="line"><a name="l00455"></a><span class="lineno"> 455</span> <span class="comment"> * @param A First 2D vector</span></div>
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<div class="line"><a name="l00456"></a><span class="lineno"> 456</span> <span class="comment"> * @param B Second 2D vector</span></div>
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<div class="line"><a name="l00457"></a><span class="lineno"> 457</span> <span class="comment"> * @return new resultant vector</span></div>
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<div class="line"><a name="l00458"></a><span class="lineno"> 458</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00459"></a><span class="lineno"> 459</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00460"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#a7491744dcfc8844338d55065d0cd0c79"> 460</a></span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::valarray<T></a>> <a class="code" href="../../d8/d77/namespacemachine__learning.html#a7491744dcfc8844338d55065d0cd0c79">multiply</a>(<span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &A,</div>
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<div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &B) {</div>
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<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  <span class="keyword">const</span> <span class="keyword">auto</span> shape_a = <a class="code" href="../../d8/d77/namespacemachine__learning.html#abe6b58ec16abe0f6f8ac195e04aa8abd">get_shape</a>(A);</div>
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<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="keyword">const</span> <span class="keyword">auto</span> shape_b = <a class="code" href="../../d8/d77/namespacemachine__learning.html#abe6b58ec16abe0f6f8ac195e04aa8abd">get_shape</a>(B);</div>
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<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <span class="comment">// If vectors are not eligible for multiplication</span></div>
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<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  <span class="keywordflow">if</span> (shape_a.second != shape_b.first) {</div>
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<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"ERROR ("</span> << __func__ << <span class="stringliteral">") : "</span>;</div>
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<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"Vectors are not eligible for multiplication "</span>;</div>
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<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << shape_a << <span class="stringliteral">" and "</span> << shape_b << <a class="codeRef" 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 name="l00469"></a><span class="lineno"> 469</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/utility/program/exit.html">std::exit</a>(EXIT_FAILURE);</div>
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<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  }</div>
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<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::valarray<T></a>> C; <span class="comment">// Vector to store result</span></div>
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<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="comment">// Normal matrix multiplication</span></div>
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<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < shape_a.first; i++) {</div>
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<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a> row;</div>
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<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  row.resize(shape_b.second);</div>
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<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> j = 0; j < shape_b.second; j++) {</div>
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<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> k = 0; k < shape_a.second; k++) {</div>
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<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  row[j] += A[i][k] * B[k][j];</div>
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<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  }</div>
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<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  }</div>
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<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  C.<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">push_back</a>(row);</div>
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<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  }</div>
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<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="keywordflow">return</span> C; <span class="comment">// Return new resultant 2D vector</span></div>
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<div class="line"><a name="l00484"></a><span class="lineno"> 484</span> }</div>
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<div class="line"><a name="l00485"></a><span class="lineno"> 485</span> <span class="comment"></span> </div>
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<div class="line"><a name="l00486"></a><span class="lineno"> 486</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00487"></a><span class="lineno"> 487</span> <span class="comment"> * Function to get hadamard product of two 2D vectors</span></div>
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<div class="line"><a name="l00488"></a><span class="lineno"> 488</span> <span class="comment"> * @tparam T typename of the vector</span></div>
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<div class="line"><a name="l00489"></a><span class="lineno"> 489</span> <span class="comment"> * @param A First 2D vector</span></div>
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<div class="line"><a name="l00490"></a><span class="lineno"> 490</span> <span class="comment"> * @param B Second 2D vector</span></div>
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<div class="line"><a name="l00491"></a><span class="lineno"> 491</span> <span class="comment"> * @return new resultant vector</span></div>
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<div class="line"><a name="l00492"></a><span class="lineno"> 492</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00493"></a><span class="lineno"> 493</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00494"></a><span class="lineno"><a class="line" href="../../d8/d77/namespacemachine__learning.html#a6ef38e5947aef609f908bfbfeaf11d75"> 494</a></span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::valarray<T></a>> <a class="code" href="../../d8/d77/namespacemachine__learning.html#a6ef38e5947aef609f908bfbfeaf11d75">hadamard_product</a>(</div>
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<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &A,</div>
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<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  <span class="keyword">const</span> <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a><<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/numeric/valarray.html">std::valarray<T></a>> &B) {</div>
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<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="keyword">const</span> <span class="keyword">auto</span> shape_a = <a class="code" href="../../d8/d77/namespacemachine__learning.html#abe6b58ec16abe0f6f8ac195e04aa8abd">get_shape</a>(A);</div>
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<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="keyword">const</span> <span class="keyword">auto</span> shape_b = <a class="code" href="../../d8/d77/namespacemachine__learning.html#abe6b58ec16abe0f6f8ac195e04aa8abd">get_shape</a>(B);</div>
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<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <span class="comment">// If vectors are not eligible for hadamard product</span></div>
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<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <span class="keywordflow">if</span> (shape_a.first != shape_b.first || shape_a.second != shape_b.second) {</div>
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<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"ERROR ("</span> << __func__ << <span class="stringliteral">") : "</span>;</div>
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<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << <span class="stringliteral">"Vectors have different shapes "</span>;</div>
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<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cerr</a> << shape_a << <span class="stringliteral">" and "</span> << shape_b << <a class="codeRef" 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 name="l00504"></a><span class="lineno"> 504</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/utility/program/exit.html">std::exit</a>(EXIT_FAILURE);</div>
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<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  }</div>
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<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector<std::valarray<T></a>> C; <span class="comment">// Vector to store result</span></div>
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<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < A.size(); i++) {</div>
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<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  C.<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">push_back</a>(A[i] * B[i]); <span class="comment">// Elementwise multiplication</span></div>
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<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  }</div>
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<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  <span class="keywordflow">return</span> C; <span class="comment">// Return new resultant 2D vector</span></div>
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<div class="line"><a name="l00511"></a><span class="lineno"> 511</span> }</div>
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<div class="line"><a name="l00512"></a><span class="lineno"> 512</span> } <span class="comment">// namespace machine_learning</span></div>
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<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  </div>
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<div class="line"><a name="l00514"></a><span class="lineno"> 514</span> <span class="preprocessor">#endif</span></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::ostream</a></div></div>
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<div class="ttc" id="abegin_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/begin.html">std::begin</a></div><div class="ttdeci">T begin(T... args)</div></div>
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<div class="ttc" id="adistance_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/distance.html">std::distance</a></div><div class="ttdeci">T distance(T... args)</div></div>
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<div class="ttc" id="aend_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/iterator/end.html">std::end</a></div><div class="ttdeci">T end(T... args)</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="aexit_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/program/exit.html">std::exit</a></div><div class="ttdeci">T exit(T... args)</div></div>
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<div class="ttc" id="amake_pair_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/utility/pair/make_pair.html">std::make_pair</a></div><div class="ttdeci">T make_pair(T... args)</div></div>
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<div class="ttc" id="amax_element_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/max_element.html">std::max_element</a></div><div class="ttdeci">T max_element(T... args)</div></div>
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<div class="ttc" id="amax_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/max.html">std::max</a></div><div class="ttdeci">T max(T... args)</div></div>
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<div class="ttc" id="amin_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/min.html">std::min</a></div><div class="ttdeci">T min(T... args)</div></div>
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<div class="ttc" id="anamespacemachine__learning_html"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html">machine_learning</a></div><div class="ttdoc">Machine learning algorithms.</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_a05b9445c6ab65053b9bf9897a96af82d"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#a05b9445c6ab65053b9bf9897a96af82d">machine_learning::minmax_scaler</a></div><div class="ttdeci">std::vector< std::vector< std::valarray< T > > > minmax_scaler(const std::vector< std::vector< std::valarray< T >>> &A, const T &low, const T &high)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:269</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_a1b42d24ad7bedbfa8e5b59fe96987a44"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#a1b42d24ad7bedbfa8e5b59fe96987a44">machine_learning::argmax</a></div><div class="ttdeci">size_t argmax(const std::vector< std::valarray< T >> &A)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:307</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_a2055c2f3a076b3d4146aade5eb35666d"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#a2055c2f3a076b3d4146aade5eb35666d">machine_learning::operator/</a></div><div class="ttdeci">std::vector< std::valarray< T > > operator/(const std::vector< std::valarray< T >> &A, const T &val)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:365</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_a4d136cbf20e3126ed9b934ab2d03f18b"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#a4d136cbf20e3126ed9b934ab2d03f18b">machine_learning::zeroes_initialization</a></div><div class="ttdeci">void zeroes_initialization(std::vector< std::valarray< T >> &A, const std::pair< size_t, size_t > &shape)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:213</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_a4dd9a9df9f8f05327bcf7b58b0a86576"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#a4dd9a9df9f8f05327bcf7b58b0a86576">machine_learning::pop_back</a></div><div class="ttdeci">std::valarray< T > pop_back(const std::valarray< T > &A)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:119</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_a5305cc18d11943d3dc0d66e70d7e9c44"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#a5305cc18d11943d3dc0d66e70d7e9c44">machine_learning::sum</a></div><div class="ttdeci">T sum(const std::vector< std::valarray< T >> &A)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:232</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_a5f42063207181529413d812ade52f58e"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#a5f42063207181529413d812ade52f58e">machine_learning::operator-</a></div><div class="ttdeci">std::vector< std::valarray< T > > operator-(const std::vector< std::valarray< T >> &A, const std::vector< std::valarray< T >> &B)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:433</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_a62a418f243cd52b49f59015dddff188e"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#a62a418f243cd52b49f59015dddff188e">machine_learning::equal_shuffle</a></div><div class="ttdeci">void equal_shuffle(std::vector< std::vector< std::valarray< T >>> &A, std::vector< std::vector< std::valarray< T >>> &B)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:136</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_a725d4ccceda4f32c96348ba1d593cd3c"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#a725d4ccceda4f32c96348ba1d593cd3c">machine_learning::insert_element</a></div><div class="ttdeci">std::valarray< T > insert_element(const std::valarray< T > &A, const T &ele)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:85</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_a73ee7ed3546ab9e8792a92336d0d14ab"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#a73ee7ed3546ab9e8792a92336d0d14ab">machine_learning::uniform_random_initialization</a></div><div class="ttdeci">void uniform_random_initialization(std::vector< std::valarray< T >> &A, const std::pair< size_t, size_t > &shape, const T &low, const T &high)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:166</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_a7491744dcfc8844338d55065d0cd0c79"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#a7491744dcfc8844338d55065d0cd0c79">machine_learning::multiply</a></div><div class="ttdeci">std::vector< std::valarray< T > > multiply(const std::vector< std::valarray< T >> &A, const std::vector< std::valarray< T >> &B)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:460</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_a8b3b06a63bd16b91237c85a295309774"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#a8b3b06a63bd16b91237c85a295309774">machine_learning::apply_function</a></div><div class="ttdeci">std::vector< std::valarray< T > > apply_function(const std::vector< std::valarray< T >> &A, T(*func)(const T &))</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:329</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_a8e8b54aaa62ad7f906aec0756ca3a500"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#a8e8b54aaa62ad7f906aec0756ca3a500">machine_learning::operator<<</a></div><div class="ttdeci">std::ostream & operator<<(std::ostream &out, std::vector< std::valarray< T >> const &A)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:32</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_a9225f0ded976096b45ffe13c75d33c05"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#a9225f0ded976096b45ffe13c75d33c05">machine_learning::operator+</a></div><div class="ttdeci">std::vector< std::valarray< T > > operator+(const std::vector< std::valarray< T >> &A, const std::vector< std::valarray< T >> &B)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:406</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_ab58fb68da2cfc5326d3da0cba6f58118"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#ab58fb68da2cfc5326d3da0cba6f58118">machine_learning::operator*</a></div><div class="ttdeci">std::vector< std::valarray< T > > operator*(const std::vector< std::valarray< T >> &A, const T &val)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:347</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_abe6b58ec16abe0f6f8ac195e04aa8abd"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#abe6b58ec16abe0f6f8ac195e04aa8abd">machine_learning::get_shape</a></div><div class="ttdeci">std::pair< size_t, size_t > get_shape(const std::vector< std::valarray< T >> &A)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:247</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_abf136b863d804899647f46eeb2e1392b"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#abf136b863d804899647f46eeb2e1392b">machine_learning::unit_matrix_initialization</a></div><div class="ttdeci">void unit_matrix_initialization(std::vector< std::valarray< T >> &A, const std::pair< size_t, size_t > &shape)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:193</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_ac7d9b358f1ef2ba2a1d475a5452ec41f"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#ac7d9b358f1ef2ba2a1d475a5452ec41f">machine_learning::transpose</a></div><div class="ttdeci">std::vector< std::valarray< T > > transpose(const std::vector< std::valarray< T >> &A)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:382</div></div>
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<div class="ttc" id="anamespacemachine__learning_html_ad9d119e7520fa5c2d2428433f578c0bc"><div class="ttname"><a href="../../d8/d77/namespacemachine__learning.html#ad9d119e7520fa5c2d2428433f578c0bc">machine_learning::pop_front</a></div><div class="ttdeci">std::valarray< T > pop_front(const std::valarray< T > &A)</div><div class="ttdef"><b>Definition:</b> vector_ops.hpp:102</div></div>
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<div class="ttc" id="anow_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/chrono/system_clock/now.html">std::chrono::system_clock::now</a></div><div class="ttdeci">T now(T... args)</div></div>
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<div class="ttc" id="aswap_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/algorithm/swap.html">std::swap</a></div><div class="ttdeci">T swap(T... args)</div></div>
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