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<a href="custom__imputation_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> </div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#ifndef MLPACK_CORE_DATA_IMPUTE_STRATEGIES_CUSTOM_IMPUTATION_HPP</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#define MLPACK_CORE_DATA_IMPUTE_STRATEGIES_CUSTOM_IMPUTATION_HPP</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <<a class="code" href="prereqs_8hpp.html">mlpack/prereqs.hpp</a>></span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">namespace </span><a class="code" href="namespacemlpack.html">mlpack</a> {</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">namespace </span>data {</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00024"></a><span class="lineno"><a class="line" href="classmlpack_1_1data_1_1CustomImputation.html"> 24</a></span> <span class="keyword">class </span><a class="code" href="classmlpack_1_1data_1_1CustomImputation.html">CustomImputation</a></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> {</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00027"></a><span class="lineno"><a class="line" href="classmlpack_1_1data_1_1CustomImputation.html#a11a40f38a2efcd0fe18d898f258a31dd"> 27</a></span>  <a class="code" href="classmlpack_1_1data_1_1CustomImputation.html#a11a40f38a2efcd0fe18d898f258a31dd">CustomImputation</a>(T <a class="code" href="classmlpack_1_1data_1_1CustomImputation.html#a15414319199d76269d216ad5aa2ca068">customValue</a>):</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  customValue(<a class="code" href="namespacestd.html">std</a>::move(customValue))</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  {</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="comment">// nothing to initialize here</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  }</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="classmlpack_1_1data_1_1CustomImputation.html#a50c7cc6cf05fbc61cb4d28a31e0c5034"> 44</a></span>  <span class="keywordtype">void</span> <a class="code" href="classmlpack_1_1data_1_1CustomImputation.html#a50c7cc6cf05fbc61cb4d28a31e0c5034">Impute</a>(arma::Mat<T>& input,</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keyword">const</span> T& mappedValue,</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> dimension,</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> columnMajor = <span class="keyword">true</span>)</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  {</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="comment">// replace the target value to custom value</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">if</span> (columnMajor)</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  {</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < input.n_cols; ++i)</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  {</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">if</span> (input(dimension, i) == mappedValue ||</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  std::isnan(input(dimension, i)))</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  {</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  input(dimension, i) = <a class="code" href="classmlpack_1_1data_1_1CustomImputation.html#a15414319199d76269d216ad5aa2ca068">customValue</a>;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  }</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  {</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < input.n_rows; ++i)</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  {</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">if</span> (input(i, dimension) == mappedValue ||</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  std::isnan(input(i, dimension)))</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  {</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  input(i, dimension) = <a class="code" href="classmlpack_1_1data_1_1CustomImputation.html#a15414319199d76269d216ad5aa2ca068">customValue</a>;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  }</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  }</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  }</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  }</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00076"></a><span class="lineno"><a class="line" href="classmlpack_1_1data_1_1CustomImputation.html#a15414319199d76269d216ad5aa2ca068"> 76</a></span>  T <a class="code" href="classmlpack_1_1data_1_1CustomImputation.html#a15414319199d76269d216ad5aa2ca068">customValue</a>;</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> }; <span class="comment">// class CustomImputation</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> } <span class="comment">// namespace data</span></div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> } <span class="comment">// namespace mlpack</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="classmlpack_1_1data_1_1CustomImputation_html"><div class="ttname"><a href="classmlpack_1_1data_1_1CustomImputation.html">mlpack::data::CustomImputation</a></div><div class="ttdoc">A simple custom imputation class. </div><div class="ttdef"><b>Definition:</b> <a href="custom__imputation_8hpp_source.html#l00024">custom_imputation.hpp:24</a></div></div>
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<div class="ttc" id="namespacemlpack_html"><div class="ttname"><a href="namespacemlpack.html">mlpack</a></div><div class="ttdoc">Linear algebra utility functions, generally performed on matrices or vectors. </div><div class="ttdef"><b>Definition:</b> <a href="binarize_8hpp_source.html#l00018">binarize.hpp:18</a></div></div>
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<div class="ttc" id="prereqs_8hpp_html"><div class="ttname"><a href="prereqs_8hpp.html">prereqs.hpp</a></div><div class="ttdoc">The core includes that mlpack expects; standard C++ includes and Armadillo. </div></div>
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<div class="ttc" id="namespacestd_html"><div class="ttname"><a href="namespacestd.html">std</a></div><div class="ttdef"><b>Definition:</b> <a href="prereqs_8hpp_source.html#l00056">prereqs.hpp:56</a></div></div>
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<div class="ttc" id="classmlpack_1_1data_1_1CustomImputation_html_a15414319199d76269d216ad5aa2ca068"><div class="ttname"><a href="classmlpack_1_1data_1_1CustomImputation.html#a15414319199d76269d216ad5aa2ca068">mlpack::data::CustomImputation::customValue</a></div><div class="ttdeci">T customValue</div><div class="ttdoc">A user-defined value that the user wants to replace missing values with. </div><div class="ttdef"><b>Definition:</b> <a href="custom__imputation_8hpp_source.html#l00076">custom_imputation.hpp:76</a></div></div>
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<div class="ttc" id="classmlpack_1_1data_1_1CustomImputation_html_a50c7cc6cf05fbc61cb4d28a31e0c5034"><div class="ttname"><a href="classmlpack_1_1data_1_1CustomImputation.html#a50c7cc6cf05fbc61cb4d28a31e0c5034">mlpack::data::CustomImputation::Impute</a></div><div class="ttdeci">void Impute(arma::Mat< T > &input, const T &mappedValue, const size_t dimension, const bool columnMajor=true)</div><div class="ttdoc">Impute function searches through the input looking for mappedValue and replaces it with the user-defi...</div><div class="ttdef"><b>Definition:</b> <a href="custom__imputation_8hpp_source.html#l00044">custom_imputation.hpp:44</a></div></div>
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<div class="ttc" id="classmlpack_1_1data_1_1CustomImputation_html_a11a40f38a2efcd0fe18d898f258a31dd"><div class="ttname"><a href="classmlpack_1_1data_1_1CustomImputation.html#a11a40f38a2efcd0fe18d898f258a31dd">mlpack::data::CustomImputation::CustomImputation</a></div><div class="ttdeci">CustomImputation(T customValue)</div><div class="ttdef"><b>Definition:</b> <a href="custom__imputation_8hpp_source.html#l00027">custom_imputation.hpp:27</a></div></div>
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