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<div class="title">imputer.hpp</div> </div>
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<a href="imputer_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="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#ifndef MLPACK_CORE_DATA_IMPUTER_HPP</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#define MLPACK_CORE_DATA_IMPUTER_HPP</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <<a class="code" href="prereqs_8hpp.html">mlpack/prereqs.hpp</a>></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include "<a class="code" href="dataset__mapper_8hpp.html">dataset_mapper.hpp</a>"</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include "<a class="code" href="missing__policy_8hpp.html">map_policies/missing_policy.hpp</a>"</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include "<a class="code" href="increment__policy_8hpp.html">map_policies/increment_policy.hpp</a>"</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">namespace </span><a class="code" href="namespacemlpack.html">mlpack</a> {</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">namespace </span>data {</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> MapperType, <span class="keyword">typename</span> StrategyType></div><div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="classmlpack_1_1data_1_1Imputer.html"> 33</a></span> <span class="keyword">class </span><a class="code" href="classmlpack_1_1data_1_1Imputer.html">Imputer</a></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> {</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="classmlpack_1_1data_1_1Imputer.html#a162ba7834c4674bcbcc193b73eede4a8"> 36</a></span>  <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a162ba7834c4674bcbcc193b73eede4a8">Imputer</a>(MapperType <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a98b9eea48d1fa4b682b4d84c9bd1da80">mapper</a>, <span class="keywordtype">bool</span> <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a71d6c94fa2871236e02e60e7ae716022">columnMajor</a> = <span class="keyword">true</span>):</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  mapper(<a class="code" href="namespacestd.html">std</a>::move(mapper)),</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a71d6c94fa2871236e02e60e7ae716022">columnMajor</a>(<a class="code" href="classmlpack_1_1data_1_1Imputer.html#a71d6c94fa2871236e02e60e7ae716022">columnMajor</a>)</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  {</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="comment">// Nothing to initialize here.</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> </div><div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="classmlpack_1_1data_1_1Imputer.html#a5d0ecd5e11cafa015215fae2b0b4de00"> 43</a></span>  <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a5d0ecd5e11cafa015215fae2b0b4de00">Imputer</a>(MapperType <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a98b9eea48d1fa4b682b4d84c9bd1da80">mapper</a>, StrategyType <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a16ea32bd50408f3be4002174a1c5d86c">strategy</a>, <span class="keywordtype">bool</span> <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a71d6c94fa2871236e02e60e7ae716022">columnMajor</a> = <span class="keyword">true</span>):</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  strategy(<a class="code" href="namespacestd.html">std</a>::move(strategy)),</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  mapper(<a class="code" href="namespacestd.html">std</a>::move(mapper)),</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a71d6c94fa2871236e02e60e7ae716022">columnMajor</a>(<a class="code" href="classmlpack_1_1data_1_1Imputer.html#a71d6c94fa2871236e02e60e7ae716022">columnMajor</a>)</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="comment">// Nothing to initialize here.</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  }</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="classmlpack_1_1data_1_1Imputer.html#a6f136c82b8849201460c64425dfda3cd"> 60</a></span>  <span class="keywordtype">void</span> <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a6f136c82b8849201460c64425dfda3cd">Impute</a>(arma::Mat<T>& input,</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">const</span> <a class="code" href="bindings_2matlab_2CMakeLists_8txt.html#ad3a3f86b22ab94a882506e9e614165f1">std::string</a>& missingValue,</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> dimension)</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  {</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  T mappedValue = <span class="keyword">static_cast<</span>T<span class="keyword">></span>(<a class="code" href="classmlpack_1_1data_1_1Imputer.html#a98b9eea48d1fa4b682b4d84c9bd1da80">mapper</a>.UnmapValue(missingValue, dimension));</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a16ea32bd50408f3be4002174a1c5d86c">strategy</a>.Impute(input, mappedValue, dimension, <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a71d6c94fa2871236e02e60e7ae716022">columnMajor</a>);</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="classmlpack_1_1data_1_1Imputer.html#a6472e7d0fdc21042c207a2e8ea589e2a"> 69</a></span>  <span class="keyword">const</span> StrategyType& <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a6472e7d0fdc21042c207a2e8ea589e2a">Strategy</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a16ea32bd50408f3be4002174a1c5d86c">strategy</a>; }</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div><div class="line"><a name="l00072"></a><span class="lineno"><a class="line" href="classmlpack_1_1data_1_1Imputer.html#a0f6a75eb283ede9f2bdc4d1771cc5a18"> 72</a></span>  StrategyType& <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a0f6a75eb283ede9f2bdc4d1771cc5a18">Strategy</a>() { <span class="keywordflow">return</span> <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a16ea32bd50408f3be4002174a1c5d86c">strategy</a>; }</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div><div class="line"><a name="l00075"></a><span class="lineno"><a class="line" href="classmlpack_1_1data_1_1Imputer.html#a7437916cb5f28b7e83ceb78cebb3de14"> 75</a></span>  <span class="keyword">const</span> MapperType& <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a7437916cb5f28b7e83ceb78cebb3de14">Mapper</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a98b9eea48d1fa4b682b4d84c9bd1da80">mapper</a>; }</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div><div class="line"><a name="l00078"></a><span class="lineno"><a class="line" href="classmlpack_1_1data_1_1Imputer.html#aeb095fe18e98ec5b953b91caf3f70471"> 78</a></span>  MapperType& <a class="code" href="classmlpack_1_1data_1_1Imputer.html#aeb095fe18e98ec5b953b91caf3f70471">Mapper</a>() { <span class="keywordflow">return</span> <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a98b9eea48d1fa4b682b4d84c9bd1da80">mapper</a>; }</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">// StrategyType</span></div><div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="classmlpack_1_1data_1_1Imputer.html#a16ea32bd50408f3be4002174a1c5d86c"> 82</a></span>  StrategyType <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a16ea32bd50408f3be4002174a1c5d86c">strategy</a>;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="comment">// DatasetMapperType<MapPolicy></span></div><div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="classmlpack_1_1data_1_1Imputer.html#a98b9eea48d1fa4b682b4d84c9bd1da80"> 85</a></span>  MapperType <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a98b9eea48d1fa4b682b4d84c9bd1da80">mapper</a>;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="comment">// save columnMajor as a member variable since it is rarely changed.</span></div><div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="classmlpack_1_1data_1_1Imputer.html#a71d6c94fa2871236e02e60e7ae716022"> 88</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classmlpack_1_1data_1_1Imputer.html#a71d6c94fa2871236e02e60e7ae716022">columnMajor</a>;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> }; <span class="comment">// class Imputer</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> } <span class="comment">// namespace data</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> } <span class="comment">// namespace mlpack</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="classmlpack_1_1data_1_1Imputer_html_aeb095fe18e98ec5b953b91caf3f70471"><div class="ttname"><a href="classmlpack_1_1data_1_1Imputer.html#aeb095fe18e98ec5b953b91caf3f70471">mlpack::data::Imputer::Mapper</a></div><div class="ttdeci">MapperType & Mapper()</div><div class="ttdoc">Modify the given mapper (be careful!) </div><div class="ttdef"><b>Definition:</b> <a href="imputer_8hpp_source.html#l00078">imputer.hpp:78</a></div></div>
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<div class="ttc" id="increment__policy_8hpp_html"><div class="ttname"><a href="increment__policy_8hpp.html">increment_policy.hpp</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="classmlpack_1_1data_1_1Imputer_html_a0f6a75eb283ede9f2bdc4d1771cc5a18"><div class="ttname"><a href="classmlpack_1_1data_1_1Imputer.html#a0f6a75eb283ede9f2bdc4d1771cc5a18">mlpack::data::Imputer::Strategy</a></div><div class="ttdeci">StrategyType & Strategy()</div><div class="ttdoc">Modify the given given strategy (be careful!) </div><div class="ttdef"><b>Definition:</b> <a href="imputer_8hpp_source.html#l00072">imputer.hpp:72</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_1Imputer_html_a7437916cb5f28b7e83ceb78cebb3de14"><div class="ttname"><a href="classmlpack_1_1data_1_1Imputer.html#a7437916cb5f28b7e83ceb78cebb3de14">mlpack::data::Imputer::Mapper</a></div><div class="ttdeci">const MapperType & Mapper() const </div><div class="ttdoc">Get the mapper. </div><div class="ttdef"><b>Definition:</b> <a href="imputer_8hpp_source.html#l00075">imputer.hpp:75</a></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_1Imputer_html_a98b9eea48d1fa4b682b4d84c9bd1da80"><div class="ttname"><a href="classmlpack_1_1data_1_1Imputer.html#a98b9eea48d1fa4b682b4d84c9bd1da80">mlpack::data::Imputer::mapper</a></div><div class="ttdeci">MapperType mapper</div><div class="ttdef"><b>Definition:</b> <a href="imputer_8hpp_source.html#l00085">imputer.hpp:85</a></div></div>
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<div class="ttc" id="classmlpack_1_1data_1_1Imputer_html"><div class="ttname"><a href="classmlpack_1_1data_1_1Imputer.html">mlpack::data::Imputer</a></div><div class="ttdoc">Given a dataset of a particular datatype, replace user-specified missing value with a variable depend...</div><div class="ttdef"><b>Definition:</b> <a href="imputer_8hpp_source.html#l00033">imputer.hpp:33</a></div></div>
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<div class="ttc" id="classmlpack_1_1data_1_1Imputer_html_a6472e7d0fdc21042c207a2e8ea589e2a"><div class="ttname"><a href="classmlpack_1_1data_1_1Imputer.html#a6472e7d0fdc21042c207a2e8ea589e2a">mlpack::data::Imputer::Strategy</a></div><div class="ttdeci">const StrategyType & Strategy() const </div><div class="ttdoc">Get the strategy. </div><div class="ttdef"><b>Definition:</b> <a href="imputer_8hpp_source.html#l00069">imputer.hpp:69</a></div></div>
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<div class="ttc" id="missing__policy_8hpp_html"><div class="ttname"><a href="missing__policy_8hpp.html">missing_policy.hpp</a></div></div>
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<div class="ttc" id="dataset__mapper_8hpp_html"><div class="ttname"><a href="dataset__mapper_8hpp.html">dataset_mapper.hpp</a></div></div>
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<div class="ttc" id="classmlpack_1_1data_1_1Imputer_html_a16ea32bd50408f3be4002174a1c5d86c"><div class="ttname"><a href="classmlpack_1_1data_1_1Imputer.html#a16ea32bd50408f3be4002174a1c5d86c">mlpack::data::Imputer::strategy</a></div><div class="ttdeci">StrategyType strategy</div><div class="ttdef"><b>Definition:</b> <a href="imputer_8hpp_source.html#l00082">imputer.hpp:82</a></div></div>
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<div class="ttc" id="bindings_2matlab_2CMakeLists_8txt_html_ad3a3f86b22ab94a882506e9e614165f1"><div class="ttname"><a href="bindings_2matlab_2CMakeLists_8txt.html#ad3a3f86b22ab94a882506e9e614165f1">string</a></div><div class="ttdeci">test cpp RESULT_VARIABLE MEX_RESULT_TRASH OUTPUT_VARIABLE MEX_OUTPUT ERROR_VARIABLE MEX_ERROR_TRASH string(REGEX MATCH"Warning: You are using"MEX_WARNING"${MEX_OUTPUT}") if(MEX_WARNING) string(REGEX REPLACE".*using [a-zA-Z]* version \"([0-9.]*)[^\"]*\".*""\\1"OTHER_COMPILER_VERSION"$</div><div class="ttdef"><b>Definition:</b> <a href="bindings_2matlab_2CMakeLists_8txt_source.html#l00018">CMakeLists.txt:18</a></div></div>
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<div class="ttc" id="classmlpack_1_1data_1_1Imputer_html_a6f136c82b8849201460c64425dfda3cd"><div class="ttname"><a href="classmlpack_1_1data_1_1Imputer.html#a6f136c82b8849201460c64425dfda3cd">mlpack::data::Imputer::Impute</a></div><div class="ttdeci">void Impute(arma::Mat< T > &input, const std::string &missingValue, const size_t dimension)</div><div class="ttdoc">Given an input dataset, replace missing values of a dimension with given imputation strategy...</div><div class="ttdef"><b>Definition:</b> <a href="imputer_8hpp_source.html#l00060">imputer.hpp:60</a></div></div>
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<div class="ttc" id="classmlpack_1_1data_1_1Imputer_html_a162ba7834c4674bcbcc193b73eede4a8"><div class="ttname"><a href="classmlpack_1_1data_1_1Imputer.html#a162ba7834c4674bcbcc193b73eede4a8">mlpack::data::Imputer::Imputer</a></div><div class="ttdeci">Imputer(MapperType mapper, bool columnMajor=true)</div><div class="ttdef"><b>Definition:</b> <a href="imputer_8hpp_source.html#l00036">imputer.hpp:36</a></div></div>
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<div class="ttc" id="classmlpack_1_1data_1_1Imputer_html_a71d6c94fa2871236e02e60e7ae716022"><div class="ttname"><a href="classmlpack_1_1data_1_1Imputer.html#a71d6c94fa2871236e02e60e7ae716022">mlpack::data::Imputer::columnMajor</a></div><div class="ttdeci">bool columnMajor</div><div class="ttdef"><b>Definition:</b> <a href="imputer_8hpp_source.html#l00088">imputer.hpp:88</a></div></div>
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<div class="ttc" id="classmlpack_1_1data_1_1Imputer_html_a5d0ecd5e11cafa015215fae2b0b4de00"><div class="ttname"><a href="classmlpack_1_1data_1_1Imputer.html#a5d0ecd5e11cafa015215fae2b0b4de00">mlpack::data::Imputer::Imputer</a></div><div class="ttdeci">Imputer(MapperType mapper, StrategyType strategy, bool columnMajor=true)</div><div class="ttdef"><b>Definition:</b> <a href="imputer_8hpp_source.html#l00043">imputer.hpp:43</a></div></div>
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