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<div class="title">r_plus_tree_split_policy.hpp</div> </div>
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<a href="r__plus__tree__split__policy_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="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#ifndef MLPACK_CORE_TREE_RECTANGLE_TREE_R_PLUS_TREE_SPLIT_POLICY_HPP</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#define MLPACK_CORE_TREE_RECTANGLE_TREE_R_PLUS_TREE_SPLIT_POLICY_HPP</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>tree {</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00025"></a><span class="lineno"><a class="line" href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html"> 25</a></span> <span class="keyword">class </span><a class="code" href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html">RPlusTreeSplitPolicy</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="l00029"></a><span class="lineno"><a class="line" href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html#a8cb18db8d7bbcdc7facb7ba4ee90dca4"> 29</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html#a8cb18db8d7bbcdc7facb7ba4ee90dca4">SplitRequired</a> = 0;</div><div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html#a06beaae995c619ac3cf0329f246c5561"> 31</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html#a06beaae995c619ac3cf0329f246c5561">AssignToFirstTree</a> = 1;</div><div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html#a0fb6eabd2faf0d5631081b16fa73f2ab"> 33</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html#a0fb6eabd2faf0d5631081b16fa73f2ab">AssignToSecondTree</a> = 2;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">template</span><<span class="keyword">typename</span> TreeType></div><div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html#ab542e839404ff21343fcdc1edcdc3a5c"> 48</a></span>  <span class="keyword">static</span> <span class="keywordtype">int</span> <a class="code" href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html#ab542e839404ff21343fcdc1edcdc3a5c">GetSplitPolicy</a>(<span class="keyword">const</span> TreeType& child,</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> axis,</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">const</span> <span class="keyword">typename</span> TreeType::ElemType cut)</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">if</span> (child.Bound()[axis].Hi() <= cut)</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">return</span> AssignToFirstTree;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (child.Bound()[axis].Lo() >= cut)</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">return</span> AssignToSecondTree;</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>  <span class="keywordflow">return</span> <a class="code" href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html#a8cb18db8d7bbcdc7facb7ba4ee90dca4">SplitRequired</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="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">template</span><<span class="keyword">typename</span> TreeType></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">static</span> <span class="keyword">const</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <a class="code" href="classmlpack_1_1bound_1_1HRectBound.html">bound::HRectBound<metric::EuclideanDistance, typename TreeType::ElemType></a>&</div><div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html#a4d7a29ce317f0fe302a1d2771ebce472"> 70</a></span>  <a class="code" href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html#a4d7a29ce317f0fe302a1d2771ebce472">Bound</a>(<span class="keyword">const</span> TreeType& node)</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>  <span class="keywordflow">return</span> node.Bound();</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> };</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> } <span class="comment">// namespace tree</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> } <span class="comment">// namespace mlpack</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="preprocessor">#endif // MLPACK_CORE_TREE_RECTANGLE_TREE_R_PLUS_TREE_SPLIT_POLICY_HPP</span></div><div class="ttc" id="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy_html_a4d7a29ce317f0fe302a1d2771ebce472"><div class="ttname"><a href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html#a4d7a29ce317f0fe302a1d2771ebce472">mlpack::tree::RPlusTreeSplitPolicy::Bound</a></div><div class="ttdeci">static const bound::HRectBound< metric::EuclideanDistance, typename TreeType::ElemType > & Bound(const TreeType &node)</div><div class="ttdoc">Return the minimum bounding rectangle of the node. </div><div class="ttdef"><b>Definition:</b> <a href="r__plus__tree__split__policy_8hpp_source.html#l00070">r_plus_tree_split_policy.hpp:70</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_1tree_1_1RPlusTreeSplitPolicy_html_a8cb18db8d7bbcdc7facb7ba4ee90dca4"><div class="ttname"><a href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html#a8cb18db8d7bbcdc7facb7ba4ee90dca4">mlpack::tree::RPlusTreeSplitPolicy::SplitRequired</a></div><div class="ttdeci">static const int SplitRequired</div><div class="ttdoc">Indicate that the child should be split. </div><div class="ttdef"><b>Definition:</b> <a href="r__plus__tree__split__policy_8hpp_source.html#l00029">r_plus_tree_split_policy.hpp:29</a></div></div>
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<div class="ttc" id="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy_html_ab542e839404ff21343fcdc1edcdc3a5c"><div class="ttname"><a href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html#ab542e839404ff21343fcdc1edcdc3a5c">mlpack::tree::RPlusTreeSplitPolicy::GetSplitPolicy</a></div><div class="ttdeci">static int GetSplitPolicy(const TreeType &child, const size_t axis, const typename TreeType::ElemType cut)</div><div class="ttdoc">This method returns SplitRequired if a child of an intermediate node should be split, AssignToFirstTree if the child should be inserted to the first subtree, AssignToSecondTree if the child should be inserted to the second subtree. </div><div class="ttdef"><b>Definition:</b> <a href="r__plus__tree__split__policy_8hpp_source.html#l00048">r_plus_tree_split_policy.hpp:48</a></div></div>
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<div class="ttc" id="classmlpack_1_1bound_1_1HRectBound_html"><div class="ttname"><a href="classmlpack_1_1bound_1_1HRectBound.html">mlpack::bound::HRectBound</a></div><div class="ttdoc">Hyper-rectangle bound for an L-metric. </div><div class="ttdef"><b>Definition:</b> <a href="hrectbound_8hpp_source.html#l00054">hrectbound.hpp:54</a></div></div>
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<div class="ttc" id="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy_html_a06beaae995c619ac3cf0329f246c5561"><div class="ttname"><a href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html#a06beaae995c619ac3cf0329f246c5561">mlpack::tree::RPlusTreeSplitPolicy::AssignToFirstTree</a></div><div class="ttdeci">static const int AssignToFirstTree</div><div class="ttdoc">Indicate that the child should be inserted to the first subtree. </div><div class="ttdef"><b>Definition:</b> <a href="r__plus__tree__split__policy_8hpp_source.html#l00031">r_plus_tree_split_policy.hpp:31</a></div></div>
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<div class="ttc" id="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy_html_a0fb6eabd2faf0d5631081b16fa73f2ab"><div class="ttname"><a href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html#a0fb6eabd2faf0d5631081b16fa73f2ab">mlpack::tree::RPlusTreeSplitPolicy::AssignToSecondTree</a></div><div class="ttdeci">static const int AssignToSecondTree</div><div class="ttdoc">Indicate that the child should be inserted to the second subtree. </div><div class="ttdef"><b>Definition:</b> <a href="r__plus__tree__split__policy_8hpp_source.html#l00033">r_plus_tree_split_policy.hpp:33</a></div></div>
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<div class="ttc" id="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy_html"><div class="ttname"><a href="classmlpack_1_1tree_1_1RPlusTreeSplitPolicy.html">mlpack::tree::RPlusTreeSplitPolicy</a></div><div class="ttdoc">The RPlusPlusTreeSplitPolicy helps to determine the subtree into which we should insert a child of an...</div><div class="ttdef"><b>Definition:</b> <a href="r__plus__tree__split__policy_8hpp_source.html#l00025">r_plus_tree_split_policy.hpp:25</a></div></div>
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