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<a href="random__partition_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_METHODS_KMEANS_RANDOM_PARTITION_HPP</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#define MLPACK_METHODS_KMEANS_RANDOM_PARTITION_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> </div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">namespace </span><a class="code" href="namespacemlpack.html">mlpack</a> {</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span>kmeans {</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00026"></a><span class="lineno"><a class="line" href="classmlpack_1_1kmeans_1_1RandomPartition.html"> 26</a></span> <span class="keyword">class </span><a class="code" href="classmlpack_1_1kmeans_1_1RandomPartition.html">RandomPartition</a></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> {</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00030"></a><span class="lineno"><a class="line" href="classmlpack_1_1kmeans_1_1RandomPartition.html#aa66681c22f1b6322663f2072e77e738e"> 30</a></span>  <a class="code" href="classmlpack_1_1kmeans_1_1RandomPartition.html#aa66681c22f1b6322663f2072e77e738e">RandomPartition</a>() { }</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">template</span><<span class="keyword">typename</span> MatType></div><div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="classmlpack_1_1kmeans_1_1RandomPartition.html#abfb2b7260783da88534396fcceefac71"> 44</a></span>  <span class="keyword">inline</span> <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classmlpack_1_1kmeans_1_1RandomPartition.html#abfb2b7260783da88534396fcceefac71">Cluster</a>(<span class="keyword">const</span> MatType& data,</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> clusters,</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  arma::Row<size_t>& assignments)</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">// Implementation is so simple we'll put it here in the header file.</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  assignments = arma::shuffle(arma::linspace<arma::Row<size_t>>(0,</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  (clusters - 1), data.n_cols));</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> </div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Archive></div><div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="classmlpack_1_1kmeans_1_1RandomPartition.html#aa2d882e3cab51734c36cf3e55a1e79f8"> 55</a></span>  <span class="keywordtype">void</span> <a class="code" href="classmlpack_1_1kmeans_1_1RandomPartition.html#aa2d882e3cab51734c36cf3e55a1e79f8">Serialize</a>(Archive& <span class="comment">/* ar */</span>, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <span class="comment">/* version */</span>) { }</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> </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="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="classmlpack_1_1kmeans_1_1RandomPartition_html_aa66681c22f1b6322663f2072e77e738e"><div class="ttname"><a href="classmlpack_1_1kmeans_1_1RandomPartition.html#aa66681c22f1b6322663f2072e77e738e">mlpack::kmeans::RandomPartition::RandomPartition</a></div><div class="ttdeci">RandomPartition()</div><div class="ttdoc">Empty constructor, required by the InitialPartitionPolicy policy. </div><div class="ttdef"><b>Definition:</b> <a href="random__partition_8hpp_source.html#l00030">random_partition.hpp:30</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_1kmeans_1_1RandomPartition_html_abfb2b7260783da88534396fcceefac71"><div class="ttname"><a href="classmlpack_1_1kmeans_1_1RandomPartition.html#abfb2b7260783da88534396fcceefac71">mlpack::kmeans::RandomPartition::Cluster</a></div><div class="ttdeci">static void Cluster(const MatType &data, const size_t clusters, arma::Row< size_t > &assignments)</div><div class="ttdoc">Partition the given dataset into the given number of clusters. </div><div class="ttdef"><b>Definition:</b> <a href="random__partition_8hpp_source.html#l00044">random_partition.hpp:44</a></div></div>
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<div class="ttc" id="classmlpack_1_1kmeans_1_1RandomPartition_html_aa2d882e3cab51734c36cf3e55a1e79f8"><div class="ttname"><a href="classmlpack_1_1kmeans_1_1RandomPartition.html#aa2d882e3cab51734c36cf3e55a1e79f8">mlpack::kmeans::RandomPartition::Serialize</a></div><div class="ttdeci">void Serialize(Archive &, const unsigned int)</div><div class="ttdoc">Serialize the partitioner (nothing to do). </div><div class="ttdef"><b>Definition:</b> <a href="random__partition_8hpp_source.html#l00055">random_partition.hpp:55</a></div></div>
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<div class="ttc" id="classmlpack_1_1kmeans_1_1RandomPartition_html"><div class="ttname"><a href="classmlpack_1_1kmeans_1_1RandomPartition.html">mlpack::kmeans::RandomPartition</a></div><div class="ttdoc">A very simple partitioner which partitions the data randomly into the number of desired clusters...</div><div class="ttdef"><b>Definition:</b> <a href="random__partition_8hpp_source.html#l00026">random_partition.hpp:26</a></div></div>
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