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<h1>Source code for pyFTS.models.multivariate.granular</h1><div class="highlight"><pre>
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<span></span><span class="kn">from</span> <span class="nn">pyFTS.models.multivariate</span> <span class="k">import</span> <span class="n">cmvfts</span><span class="p">,</span> <span class="n">grid</span>
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<span class="kn">from</span> <span class="nn">pyFTS.models</span> <span class="k">import</span> <span class="n">hofts</span>
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<div class="viewcode-block" id="GranularWMVFTS"><a class="viewcode-back" href="../../../../pyFTS.models.multivariate.html#pyFTS.models.multivariate.granular.GranularWMVFTS">[docs]</a><span class="k">class</span> <span class="nc">GranularWMVFTS</span><span class="p">(</span><span class="n">cmvfts</span><span class="o">.</span><span class="n">ClusteredMVFTS</span><span class="p">):</span>
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<span class="sd">"""</span>
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<span class="sd"> Granular multivariate weighted high order FTS</span>
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<span class="sd"> """</span>
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<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
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<span class="nb">super</span><span class="p">(</span><span class="n">GranularWMVFTS</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">fts_method</span> <span class="o">=</span> <span class="n">hofts</span><span class="o">.</span><span class="n">WeightedHighOrderFTS</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">model</span> <span class="o">=</span> <span class="kc">None</span>
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<span class="sd">"""The most recent trained model"""</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">knn</span> <span class="o">=</span> <span class="n">kwargs</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'knn'</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">order</span> <span class="o">=</span> <span class="n">kwargs</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"order"</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">shortname</span> <span class="o">=</span> <span class="s2">"GranularWMVFTS"</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="s2">"Granular Weighted Multivariate FTS"</span>
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<div class="viewcode-block" id="GranularWMVFTS.train"><a class="viewcode-back" href="../../../../pyFTS.models.multivariate.html#pyFTS.models.multivariate.granular.GranularWMVFTS.train">[docs]</a> <span class="k">def</span> <span class="nf">train</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">partitioner</span> <span class="o">=</span> <span class="n">grid</span><span class="o">.</span><span class="n">IncrementalGridCluster</span><span class="p">(</span>
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<span class="n">explanatory_variables</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">explanatory_variables</span><span class="p">,</span>
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<span class="n">target_variable</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">target_variable</span><span class="p">,</span>
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<span class="n">neighbors</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">knn</span><span class="p">)</span>
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<span class="nb">super</span><span class="p">(</span><span class="n">GranularWMVFTS</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">train</span><span class="p">(</span><span class="n">data</span><span class="p">,</span><span class="o">**</span><span class="n">kwargs</span><span class="p">)</span></div></div>
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<h1>Source code for pyFTS.models.multivariate.grid</h1><div class="highlight"><pre>
|
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<span></span><span class="kn">from</span> <span class="nn">pyFTS.models.multivariate</span> <span class="k">import</span> <span class="n">partitioner</span>
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<span class="kn">from</span> <span class="nn">pyFTS.models.multivariate.common</span> <span class="k">import</span> <span class="n">MultivariateFuzzySet</span><span class="p">,</span> <span class="n">fuzzyfy_instance_clustered</span>
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<span class="kn">from</span> <span class="nn">itertools</span> <span class="k">import</span> <span class="n">product</span>
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<span class="kn">from</span> <span class="nn">scipy.spatial</span> <span class="k">import</span> <span class="n">KDTree</span>
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<span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span>
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<span class="kn">import</span> <span class="nn">pandas</span> <span class="k">as</span> <span class="nn">pd</span>
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<div class="viewcode-block" id="GridCluster"><a class="viewcode-back" href="../../../../pyFTS.models.multivariate.html#pyFTS.models.multivariate.grid.GridCluster">[docs]</a><span class="k">class</span> <span class="nc">GridCluster</span><span class="p">(</span><span class="n">partitioner</span><span class="o">.</span><span class="n">MultivariatePartitioner</span><span class="p">):</span>
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<span class="sd">"""</span>
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<span class="sd"> A cartesian product of all fuzzy sets of all variables</span>
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<span class="sd"> """</span>
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<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
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<span class="nb">super</span><span class="p">(</span><span class="n">GridCluster</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="o">=</span><span class="s2">"GridCluster"</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">build</span><span class="p">(</span><span class="kc">None</span><span class="p">)</span>
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<div class="viewcode-block" id="GridCluster.build"><a class="viewcode-back" href="../../../../pyFTS.models.multivariate.html#pyFTS.models.multivariate.grid.GridCluster.build">[docs]</a> <span class="k">def</span> <span class="nf">build</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">):</span>
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<span class="n">fsets</span> <span class="o">=</span> <span class="p">[[</span><span class="n">x</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">k</span><span class="o">.</span><span class="n">partitioner</span><span class="o">.</span><span class="n">sets</span><span class="o">.</span><span class="n">values</span><span class="p">()]</span>
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<span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">explanatory_variables</span><span class="p">]</span>
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<span class="n">c</span> <span class="o">=</span> <span class="mi">0</span>
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<span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">product</span><span class="p">(</span><span class="o">*</span><span class="n">fsets</span><span class="p">):</span>
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<span class="n">mvfset</span> <span class="o">=</span> <span class="n">MultivariateFuzzySet</span><span class="p">(</span><span class="n">target_variable</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">target_variable</span><span class="p">)</span>
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<span class="k">for</span> <span class="n">fset</span> <span class="ow">in</span> <span class="n">k</span><span class="p">:</span>
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<span class="n">mvfset</span><span class="o">.</span><span class="n">append_set</span><span class="p">(</span><span class="n">fset</span><span class="o">.</span><span class="n">variable</span><span class="p">,</span> <span class="n">fset</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">sets</span><span class="p">[</span><span class="n">mvfset</span><span class="o">.</span><span class="n">name</span><span class="p">]</span> <span class="o">=</span> <span class="n">mvfset</span>
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<span class="n">c</span> <span class="o">+=</span> <span class="mi">1</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">build_index</span><span class="p">()</span></div></div>
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<div class="viewcode-block" id="IncrementalGridCluster"><a class="viewcode-back" href="../../../../pyFTS.models.multivariate.html#pyFTS.models.multivariate.grid.IncrementalGridCluster">[docs]</a><span class="k">class</span> <span class="nc">IncrementalGridCluster</span><span class="p">(</span><span class="n">partitioner</span><span class="o">.</span><span class="n">MultivariatePartitioner</span><span class="p">):</span>
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<span class="sd">"""</span>
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<span class="sd"> Create combinations of fuzzy sets of the variables on demand, incrementally increasing the</span>
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<span class="sd"> multivariate fuzzy set base.</span>
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<span class="sd"> """</span>
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<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
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<span class="nb">super</span><span class="p">(</span><span class="n">IncrementalGridCluster</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="o">=</span><span class="s2">"IncrementalGridCluster"</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">build</span><span class="p">(</span><span class="kc">None</span><span class="p">)</span>
|
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|
||||
<div class="viewcode-block" id="IncrementalGridCluster.fuzzyfy"><a class="viewcode-back" href="../../../../pyFTS.models.multivariate.html#pyFTS.models.multivariate.grid.IncrementalGridCluster.fuzzyfy">[docs]</a> <span class="k">def</span> <span class="nf">fuzzyfy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
|
||||
|
||||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">pd</span><span class="o">.</span><span class="n">DataFrame</span><span class="p">):</span>
|
||||
<span class="n">ret</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">index</span><span class="p">,</span> <span class="n">inst</span> <span class="ow">in</span> <span class="n">data</span><span class="o">.</span><span class="n">iterrows</span><span class="p">():</span>
|
||||
<span class="n">mv</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">fuzzyfy</span><span class="p">(</span><span class="n">inst</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
|
||||
<span class="n">ret</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">mv</span><span class="p">)</span>
|
||||
<span class="k">return</span> <span class="n">ret</span>
|
||||
|
||||
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">kdtree</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
|
||||
<span class="n">fsets</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">search</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="nb">type</span><span class="o">=</span><span class="s1">'name'</span><span class="p">)</span>
|
||||
<span class="k">else</span><span class="p">:</span>
|
||||
<span class="n">fsets</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">incremental_search</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="nb">type</span><span class="o">=</span><span class="s1">'name'</span><span class="p">)</span>
|
||||
|
||||
<span class="n">mode</span> <span class="o">=</span> <span class="n">kwargs</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'mode'</span><span class="p">,</span> <span class="s1">'sets'</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">mode</span> <span class="o">==</span> <span class="s1">'sets'</span><span class="p">:</span>
|
||||
<span class="k">return</span> <span class="n">fsets</span>
|
||||
<span class="k">elif</span> <span class="n">mode</span> <span class="o">==</span> <span class="s1">'vector'</span><span class="p">:</span>
|
||||
<span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">()</span>
|
||||
<span class="k">elif</span> <span class="n">mode</span> <span class="o">==</span> <span class="s1">'both'</span><span class="p">:</span>
|
||||
<span class="n">ret</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="n">fsets</span><span class="p">:</span>
|
||||
<span class="n">mvfset</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">sets</span><span class="p">[</span><span class="n">key</span><span class="p">]</span>
|
||||
<span class="n">ret</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">key</span><span class="p">,</span> <span class="n">mvfset</span><span class="o">.</span><span class="n">membership</span><span class="p">(</span><span class="n">data</span><span class="p">)))</span>
|
||||
<span class="k">return</span> <span class="n">ret</span></div>
|
||||
|
||||
<div class="viewcode-block" id="IncrementalGridCluster.incremental_search"><a class="viewcode-back" href="../../../../pyFTS.models.multivariate.html#pyFTS.models.multivariate.grid.IncrementalGridCluster.incremental_search">[docs]</a> <span class="k">def</span> <span class="nf">incremental_search</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
|
||||
<span class="n">alpha_cut</span> <span class="o">=</span> <span class="n">kwargs</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'alpha_cut'</span><span class="p">,</span> <span class="mf">0.</span><span class="p">)</span>
|
||||
<span class="n">mode</span> <span class="o">=</span> <span class="n">kwargs</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'mode'</span><span class="p">,</span> <span class="s1">'sets'</span><span class="p">)</span>
|
||||
|
||||
<span class="n">fsets</span> <span class="o">=</span> <span class="p">{}</span>
|
||||
<span class="n">ret</span> <span class="o">=</span> <span class="p">[]</span>
|
||||
<span class="k">for</span> <span class="n">var</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">explanatory_variables</span><span class="p">:</span>
|
||||
<span class="n">ac</span> <span class="o">=</span> <span class="n">alpha_cut</span> <span class="k">if</span> <span class="n">alpha_cut</span> <span class="o">></span> <span class="mf">0.</span> <span class="k">else</span> <span class="n">var</span><span class="o">.</span><span class="n">alpha_cut</span>
|
||||
<span class="n">fsets</span><span class="p">[</span><span class="n">var</span><span class="o">.</span><span class="n">name</span><span class="p">]</span> <span class="o">=</span> <span class="n">var</span><span class="o">.</span><span class="n">partitioner</span><span class="o">.</span><span class="n">fuzzyfy</span><span class="p">(</span><span class="n">data</span><span class="p">[</span><span class="n">var</span><span class="o">.</span><span class="n">name</span><span class="p">],</span> <span class="n">mode</span><span class="o">=</span><span class="s1">'sets'</span><span class="p">,</span> <span class="n">alpha_cut</span><span class="o">=</span><span class="n">ac</span><span class="p">)</span>
|
||||
|
||||
<span class="n">fset</span> <span class="o">=</span> <span class="p">[</span><span class="n">val</span> <span class="k">for</span> <span class="n">key</span><span class="p">,</span> <span class="n">val</span> <span class="ow">in</span> <span class="n">fsets</span><span class="o">.</span><span class="n">items</span><span class="p">()]</span>
|
||||
|
||||
<span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">product</span><span class="p">(</span><span class="o">*</span><span class="n">fset</span><span class="p">):</span>
|
||||
<span class="n">key</span> <span class="o">=</span> <span class="s1">''</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">p</span><span class="p">)</span>
|
||||
<span class="k">if</span> <span class="n">key</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">sets</span><span class="p">:</span>
|
||||
<span class="n">mvfset</span> <span class="o">=</span> <span class="n">MultivariateFuzzySet</span><span class="p">(</span><span class="n">target_variable</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">target_variable</span><span class="p">)</span>
|
||||
<span class="k">for</span> <span class="n">ct</span><span class="p">,</span> <span class="n">fs</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">p</span><span class="p">):</span>
|
||||
<span class="n">mvfset</span><span class="o">.</span><span class="n">append_set</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">explanatory_variables</span><span class="p">[</span><span class="n">ct</span><span class="p">]</span><span class="o">.</span><span class="n">name</span><span class="p">,</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">explanatory_variables</span><span class="p">[</span><span class="n">ct</span><span class="p">]</span><span class="o">.</span><span class="n">partitioner</span><span class="p">[</span><span class="n">fs</span><span class="p">])</span>
|
||||
<span class="n">mvfset</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">key</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">sets</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="o">=</span> <span class="n">mvfset</span>
|
||||
<span class="n">ret</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
|
||||
|
||||
|
||||
<span class="k">return</span> <span class="n">ret</span></div>
|
||||
|
||||
<div class="viewcode-block" id="IncrementalGridCluster.prune"><a class="viewcode-back" href="../../../../pyFTS.models.multivariate.html#pyFTS.models.multivariate.grid.IncrementalGridCluster.prune">[docs]</a> <span class="k">def</span> <span class="nf">prune</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
|
||||
<span class="bp">self</span><span class="o">.</span><span class="n">build_index</span><span class="p">()</span></div></div>
|
||||
|
||||
</pre></div>
|
||||
|
||||
</div>
|
||||
</div>
|
||||
</div>
|
||||
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||||
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<h3>Navigation</h3>
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<li class="right" >
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<li class="nav-item nav-item-0"><a href="../../../../index.html">pyFTS 1.4 documentation</a> »</li>
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