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<div class="title">listwise_deletion.hpp</div> </div>
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<a href="listwise__deletion_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_LISTWISE_DELETION_HPP</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#define MLPACK_CORE_DATA_IMPUTE_STRATEGIES_LISTWISE_DELETION_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="l00024"></a><span class="lineno"> 24</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00025"></a><span class="lineno"><a class="line" href="classmlpack_1_1data_1_1ListwiseDeletion.html"> 25</a></span> <span class="keyword">class </span><a class="code" href="classmlpack_1_1data_1_1ListwiseDeletion.html">ListwiseDeletion</a></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> {</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00037"></a><span class="lineno"><a class="line" href="classmlpack_1_1data_1_1ListwiseDeletion.html#a37ad246c9781c85b6b023d72245306dd"> 37</a></span>  <span class="keywordtype">void</span> <a class="code" href="classmlpack_1_1data_1_1ListwiseDeletion.html#a37ad246c9781c85b6b023d72245306dd">Impute</a>(arma::Mat<T>& input,</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">const</span> T& mappedValue,</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> dimension,</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> columnMajor = <span class="keyword">true</span>)</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  {</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  std::vector<arma::uword> colsToKeep;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">if</span> (columnMajor)</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  {</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</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="l00047"></a><span class="lineno"> 47</span>  {</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">if</span> (!(input(dimension, i) == mappedValue ||</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  std::isnan(input(dimension, i))))</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  {</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  colsToKeep.push_back(i);</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  }</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>  input = input.cols(arma::uvec(colsToKeep));</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  }</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  {</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</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="l00059"></a><span class="lineno"> 59</span>  {</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">if</span> (!(input(i, dimension) == mappedValue ||</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  std::isnan(input(i, dimension))))</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>  colsToKeep.push_back(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>  }</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  input = input.rows(arma::uvec(colsToKeep));</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>  }</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> }; <span class="comment">// class ListwiseDeletion</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> } <span class="comment">// namespace data</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> } <span class="comment">// namespace mlpack</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="preprocessor">#endif</span></div><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="classmlpack_1_1data_1_1ListwiseDeletion_html"><div class="ttname"><a href="classmlpack_1_1data_1_1ListwiseDeletion.html">mlpack::data::ListwiseDeletion</a></div><div class="ttdoc">A complete-case analysis to remove the values containing mappedValue. </div><div class="ttdef"><b>Definition:</b> <a href="listwise__deletion_8hpp_source.html#l00025">listwise_deletion.hpp:25</a></div></div>
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<div class="ttc" id="classmlpack_1_1data_1_1ListwiseDeletion_html_a37ad246c9781c85b6b023d72245306dd"><div class="ttname"><a href="classmlpack_1_1data_1_1ListwiseDeletion.html#a37ad246c9781c85b6b023d72245306dd">mlpack::data::ListwiseDeletion::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 remove the whole row or column...</div><div class="ttdef"><b>Definition:</b> <a href="listwise__deletion_8hpp_source.html#l00037">listwise_deletion.hpp:37</a></div></div>
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