236 lines
29 KiB
HTML
236 lines
29 KiB
HTML
|
||
|
||
<!doctype html>
|
||
|
||
<html xmlns="http://www.w3.org/1999/xhtml">
|
||
<head>
|
||
<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
|
||
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><script type="text/javascript">
|
||
|
||
var _gaq = _gaq || [];
|
||
_gaq.push(['_setAccount', 'UA-55120145-3']);
|
||
_gaq.push(['_trackPageview']);
|
||
|
||
(function() {
|
||
var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
|
||
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
|
||
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
|
||
})();
|
||
</script>
|
||
<title>pyFTS.partitioners.FCM — pyFTS 1.2.3 documentation</title>
|
||
<link rel="stylesheet" href="../../../_static/bizstyle.css" type="text/css" />
|
||
<link rel="stylesheet" href="../../../_static/pygments.css" type="text/css" />
|
||
<script type="text/javascript" src="../../../_static/documentation_options.js"></script>
|
||
<script type="text/javascript" src="../../../_static/jquery.js"></script>
|
||
<script type="text/javascript" src="../../../_static/underscore.js"></script>
|
||
<script type="text/javascript" src="../../../_static/doctools.js"></script>
|
||
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
|
||
<script type="text/javascript" src="../../../_static/bizstyle.js"></script>
|
||
<link rel="index" title="Index" href="../../../genindex.html" />
|
||
<link rel="search" title="Search" href="../../../search.html" />
|
||
<meta name="viewport" content="width=device-width,initial-scale=1.0">
|
||
<!--[if lt IE 9]>
|
||
<script type="text/javascript" src="_static/css3-mediaqueries.js"></script>
|
||
<![endif]-->
|
||
</head><body>
|
||
<div class="related" role="navigation" aria-label="related navigation">
|
||
<h3>Navigation</h3>
|
||
<ul>
|
||
<li class="right" style="margin-right: 10px">
|
||
<a href="../../../genindex.html" title="General Index"
|
||
accesskey="I">index</a></li>
|
||
<li class="right" >
|
||
<a href="../../../py-modindex.html" title="Python Module Index"
|
||
>modules</a> |</li>
|
||
<li class="nav-item nav-item-0"><a href="../../../index.html">pyFTS 1.2.3 documentation</a> »</li>
|
||
<li class="nav-item nav-item-1"><a href="../../index.html" accesskey="U">Module code</a> »</li>
|
||
</ul>
|
||
</div>
|
||
<div class="sphinxsidebar" role="navigation" aria-label="main navigation">
|
||
<div class="sphinxsidebarwrapper">
|
||
<p class="logo"><a href="../../../index.html">
|
||
<img class="logo" src="../../../_static/logo_heading2.png" alt="Logo"/>
|
||
</a></p>
|
||
<div id="searchbox" style="display: none" role="search">
|
||
<h3>Quick search</h3>
|
||
<div class="searchformwrapper">
|
||
<form class="search" action="../../../search.html" method="get">
|
||
<input type="text" name="q" />
|
||
<input type="submit" value="Go" />
|
||
<input type="hidden" name="check_keywords" value="yes" />
|
||
<input type="hidden" name="area" value="default" />
|
||
</form>
|
||
</div>
|
||
</div>
|
||
<script type="text/javascript">$('#searchbox').show(0);</script>
|
||
</div>
|
||
</div>
|
||
|
||
<div class="document">
|
||
<div class="documentwrapper">
|
||
<div class="bodywrapper">
|
||
<div class="body" role="main">
|
||
|
||
<h1>Source code for pyFTS.partitioners.FCM</h1><div class="highlight"><pre>
|
||
<span></span><span class="sd">"""</span>
|
||
<span class="sd">S. T. Li, Y. C. Cheng, and S. Y. Lin, “A FCM-based deterministic forecasting model for fuzzy time series,”</span>
|
||
<span class="sd">Comput. Math. Appl., vol. 56, no. 12, pp. 3052–3063, Dec. 2008. DOI: 10.1016/j.camwa.2008.07.033.</span>
|
||
<span class="sd">"""</span>
|
||
<span class="kn">import</span> <span class="nn">numpy</span> <span class="k">as</span> <span class="nn">np</span>
|
||
<span class="kn">import</span> <span class="nn">math</span>
|
||
<span class="kn">import</span> <span class="nn">random</span> <span class="k">as</span> <span class="nn">rnd</span>
|
||
<span class="kn">import</span> <span class="nn">functools</span><span class="o">,</span> <span class="nn">operator</span>
|
||
<span class="kn">from</span> <span class="nn">pyFTS.common</span> <span class="k">import</span> <span class="n">FuzzySet</span><span class="p">,</span> <span class="n">Membership</span>
|
||
<span class="kn">from</span> <span class="nn">pyFTS.partitioners</span> <span class="k">import</span> <span class="n">partitioner</span>
|
||
|
||
|
||
<div class="viewcode-block" id="fuzzy_distance"><a class="viewcode-back" href="../../../pyFTS.partitioners.html#pyFTS.partitioners.FCM.fuzzy_distance">[docs]</a><span class="k">def</span> <span class="nf">fuzzy_distance</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">):</span>
|
||
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="nb">list</span><span class="p">):</span>
|
||
<span class="n">tmp</span> <span class="o">=</span> <span class="n">functools</span><span class="o">.</span><span class="n">reduce</span><span class="p">(</span><span class="n">operator</span><span class="o">.</span><span class="n">add</span><span class="p">,</span> <span class="p">[(</span><span class="n">x</span><span class="p">[</span><span class="n">k</span><span class="p">]</span> <span class="o">-</span> <span class="n">y</span><span class="p">[</span><span class="n">k</span><span class="p">])</span> <span class="o">**</span> <span class="mi">2</span> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">x</span><span class="p">))])</span>
|
||
<span class="k">else</span><span class="p">:</span>
|
||
<span class="n">tmp</span> <span class="o">=</span> <span class="p">(</span><span class="n">x</span> <span class="o">-</span> <span class="n">y</span><span class="p">)</span> <span class="o">**</span> <span class="mi">2</span>
|
||
<span class="k">return</span> <span class="n">math</span><span class="o">.</span><span class="n">sqrt</span><span class="p">(</span><span class="n">tmp</span><span class="p">)</span></div>
|
||
|
||
|
||
<div class="viewcode-block" id="membership"><a class="viewcode-back" href="../../../pyFTS.partitioners.html#pyFTS.partitioners.FCM.membership">[docs]</a><span class="k">def</span> <span class="nf">membership</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="n">vals</span><span class="p">):</span>
|
||
<span class="n">soma</span> <span class="o">=</span> <span class="mi">0</span>
|
||
<span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">vals</span><span class="p">:</span>
|
||
<span class="k">if</span> <span class="n">k</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
|
||
<span class="n">k</span> <span class="o">=</span> <span class="mi">1</span>
|
||
<span class="n">soma</span> <span class="o">=</span> <span class="n">soma</span> <span class="o">+</span> <span class="p">(</span><span class="n">val</span> <span class="o">/</span> <span class="n">k</span><span class="p">)</span> <span class="o">**</span> <span class="mi">2</span>
|
||
|
||
<span class="k">return</span> <span class="n">soma</span></div>
|
||
|
||
|
||
<div class="viewcode-block" id="fuzzy_cmeans"><a class="viewcode-back" href="../../../pyFTS.partitioners.html#pyFTS.partitioners.FCM.fuzzy_cmeans">[docs]</a><span class="k">def</span> <span class="nf">fuzzy_cmeans</span><span class="p">(</span><span class="n">k</span><span class="p">,</span> <span class="n">dados</span><span class="p">,</span> <span class="n">tam</span><span class="p">,</span> <span class="n">m</span><span class="p">,</span> <span class="n">deltadist</span><span class="o">=</span><span class="mf">0.001</span><span class="p">):</span>
|
||
<span class="n">tam_dados</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">dados</span><span class="p">)</span>
|
||
|
||
<span class="c1"># Inicializa as centróides escolhendo elementos aleatórios dos conjuntos</span>
|
||
<span class="n">centroides</span> <span class="o">=</span> <span class="p">[</span><span class="n">dados</span><span class="p">[</span><span class="n">rnd</span><span class="o">.</span><span class="n">randint</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">tam_dados</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)]</span> <span class="k">for</span> <span class="n">kk</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">k</span><span class="p">)]</span>
|
||
|
||
<span class="c1"># Tabela de pertinência das instâncias aos grupos</span>
|
||
<span class="n">grupos</span> <span class="o">=</span> <span class="p">[[</span><span class="mi">0</span> <span class="k">for</span> <span class="n">kk</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">k</span><span class="p">)]</span> <span class="k">for</span> <span class="n">xx</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">tam_dados</span><span class="p">)]</span>
|
||
|
||
<span class="n">alteracaomedia</span> <span class="o">=</span> <span class="mi">1000</span>
|
||
|
||
<span class="n">m_exp</span> <span class="o">=</span> <span class="mi">1</span> <span class="o">/</span> <span class="p">(</span><span class="n">m</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span>
|
||
|
||
<span class="c1"># para cada instância</span>
|
||
<span class="n">iteracoes</span> <span class="o">=</span> <span class="mi">0</span>
|
||
|
||
<span class="k">while</span> <span class="n">iteracoes</span> <span class="o"><</span> <span class="mi">1000</span> <span class="ow">and</span> <span class="n">alteracaomedia</span> <span class="o">></span> <span class="n">deltadist</span><span class="p">:</span>
|
||
|
||
<span class="n">alteracaomedia</span> <span class="o">=</span> <span class="mi">0</span>
|
||
|
||
<span class="c1"># verifica a distância para cada centroide</span>
|
||
<span class="c1"># Atualiza a pertinencia daquela instância para cada um dos grupos</span>
|
||
|
||
<span class="n">inst_count</span> <span class="o">=</span> <span class="mi">0</span>
|
||
<span class="k">for</span> <span class="n">instancia</span> <span class="ow">in</span> <span class="n">dados</span><span class="p">:</span>
|
||
|
||
<span class="n">dist_grupos</span> <span class="o">=</span> <span class="p">[</span><span class="mi">0</span> <span class="k">for</span> <span class="n">xx</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">k</span><span class="p">)]</span>
|
||
|
||
<span class="n">grupo_count</span> <span class="o">=</span> <span class="mi">0</span>
|
||
<span class="k">for</span> <span class="n">grupo</span> <span class="ow">in</span> <span class="n">centroides</span><span class="p">:</span>
|
||
<span class="n">dist_grupos</span><span class="p">[</span><span class="n">grupo_count</span><span class="p">]</span> <span class="o">=</span> <span class="n">fuzzy_distance</span><span class="p">(</span><span class="n">grupo</span><span class="p">,</span> <span class="n">instancia</span><span class="p">)</span>
|
||
<span class="n">grupo_count</span> <span class="o">=</span> <span class="n">grupo_count</span> <span class="o">+</span> <span class="mi">1</span>
|
||
|
||
<span class="n">dist_grupos_total</span> <span class="o">=</span> <span class="n">functools</span><span class="o">.</span><span class="n">reduce</span><span class="p">(</span><span class="n">operator</span><span class="o">.</span><span class="n">add</span><span class="p">,</span> <span class="p">[</span><span class="n">xk</span> <span class="k">for</span> <span class="n">xk</span> <span class="ow">in</span> <span class="n">dist_grupos</span><span class="p">])</span>
|
||
|
||
<span class="k">for</span> <span class="n">grp</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">k</span><span class="p">):</span>
|
||
<span class="k">if</span> <span class="n">dist_grupos</span><span class="p">[</span><span class="n">grp</span><span class="p">]</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
|
||
<span class="n">grupos</span><span class="p">[</span><span class="n">inst_count</span><span class="p">][</span><span class="n">grp</span><span class="p">]</span> <span class="o">=</span> <span class="mi">1</span>
|
||
<span class="k">else</span><span class="p">:</span>
|
||
<span class="n">grupos</span><span class="p">[</span><span class="n">inst_count</span><span class="p">][</span><span class="n">grp</span><span class="p">]</span> <span class="o">=</span> <span class="mi">1</span> <span class="o">/</span> <span class="n">membership</span><span class="p">(</span><span class="n">dist_grupos</span><span class="p">[</span><span class="n">grp</span><span class="p">],</span> <span class="n">dist_grupos</span><span class="p">)</span>
|
||
<span class="c1"># grupos[inst_count][grp] = 1/(dist_grupos[grp] / dist_grupos_total)</span>
|
||
<span class="c1"># grupos[inst_count][grp] = (1/(dist_grupos[grp]**2))**m_exp / (1/(dist_grupos_total**2))**m_exp</span>
|
||
|
||
<span class="n">inst_count</span> <span class="o">=</span> <span class="n">inst_count</span> <span class="o">+</span> <span class="mi">1</span>
|
||
|
||
<span class="c1"># return centroides</span>
|
||
|
||
<span class="c1"># atualiza cada centroide com base na Média de todos os padrões ponderados pelo grau de pertinência</span>
|
||
|
||
<span class="n">grupo_count</span> <span class="o">=</span> <span class="mi">0</span>
|
||
<span class="k">for</span> <span class="n">grupo</span> <span class="ow">in</span> <span class="n">centroides</span><span class="p">:</span>
|
||
<span class="k">if</span> <span class="n">tam</span> <span class="o">></span> <span class="mi">1</span><span class="p">:</span>
|
||
<span class="n">oldgrp</span> <span class="o">=</span> <span class="p">[</span><span class="n">xx</span> <span class="k">for</span> <span class="n">xx</span> <span class="ow">in</span> <span class="n">grupo</span><span class="p">]</span>
|
||
<span class="k">for</span> <span class="n">atr</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">tam</span><span class="p">):</span>
|
||
<span class="n">soma</span> <span class="o">=</span> <span class="n">functools</span><span class="o">.</span><span class="n">reduce</span><span class="p">(</span><span class="n">operator</span><span class="o">.</span><span class="n">add</span><span class="p">,</span>
|
||
<span class="p">[</span><span class="n">grupos</span><span class="p">[</span><span class="n">xk</span><span class="p">][</span><span class="n">grupo_count</span><span class="p">]</span> <span class="o">*</span> <span class="n">dados</span><span class="p">[</span><span class="n">xk</span><span class="p">][</span><span class="n">atr</span><span class="p">]</span> <span class="k">for</span> <span class="n">xk</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">tam_dados</span><span class="p">)])</span>
|
||
<span class="n">norm</span> <span class="o">=</span> <span class="n">functools</span><span class="o">.</span><span class="n">reduce</span><span class="p">(</span><span class="n">operator</span><span class="o">.</span><span class="n">add</span><span class="p">,</span> <span class="p">[</span><span class="n">grupos</span><span class="p">[</span><span class="n">xk</span><span class="p">][</span><span class="n">grupo_count</span><span class="p">]</span> <span class="k">for</span> <span class="n">xk</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">tam_dados</span><span class="p">)])</span>
|
||
<span class="n">centroides</span><span class="p">[</span><span class="n">grupo_count</span><span class="p">][</span><span class="n">atr</span><span class="p">]</span> <span class="o">=</span> <span class="n">soma</span> <span class="o">/</span> <span class="n">norm</span>
|
||
<span class="k">else</span><span class="p">:</span>
|
||
<span class="n">oldgrp</span> <span class="o">=</span> <span class="n">grupo</span>
|
||
<span class="n">soma</span> <span class="o">=</span> <span class="n">functools</span><span class="o">.</span><span class="n">reduce</span><span class="p">(</span><span class="n">operator</span><span class="o">.</span><span class="n">add</span><span class="p">,</span>
|
||
<span class="p">[</span><span class="n">grupos</span><span class="p">[</span><span class="n">xk</span><span class="p">][</span><span class="n">grupo_count</span><span class="p">]</span> <span class="o">*</span> <span class="n">dados</span><span class="p">[</span><span class="n">xk</span><span class="p">]</span> <span class="k">for</span> <span class="n">xk</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">tam_dados</span><span class="p">)])</span>
|
||
<span class="n">norm</span> <span class="o">=</span> <span class="n">functools</span><span class="o">.</span><span class="n">reduce</span><span class="p">(</span><span class="n">operator</span><span class="o">.</span><span class="n">add</span><span class="p">,</span> <span class="p">[</span><span class="n">grupos</span><span class="p">[</span><span class="n">xk</span><span class="p">][</span><span class="n">grupo_count</span><span class="p">]</span> <span class="k">for</span> <span class="n">xk</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">tam_dados</span><span class="p">)])</span>
|
||
<span class="n">centroides</span><span class="p">[</span><span class="n">grupo_count</span><span class="p">]</span> <span class="o">=</span> <span class="n">soma</span> <span class="o">/</span> <span class="n">norm</span>
|
||
|
||
<span class="n">alteracaomedia</span> <span class="o">=</span> <span class="n">alteracaomedia</span> <span class="o">+</span> <span class="n">fuzzy_distance</span><span class="p">(</span><span class="n">oldgrp</span><span class="p">,</span> <span class="n">grupo</span><span class="p">)</span>
|
||
<span class="n">grupo_count</span> <span class="o">=</span> <span class="n">grupo_count</span> <span class="o">+</span> <span class="mi">1</span>
|
||
|
||
<span class="n">alteracaomedia</span> <span class="o">=</span> <span class="n">alteracaomedia</span> <span class="o">/</span> <span class="n">k</span>
|
||
<span class="n">iteracoes</span> <span class="o">=</span> <span class="n">iteracoes</span> <span class="o">+</span> <span class="mi">1</span>
|
||
|
||
<span class="k">return</span> <span class="n">centroides</span></div>
|
||
|
||
|
||
<div class="viewcode-block" id="FCMPartitioner"><a class="viewcode-back" href="../../../pyFTS.partitioners.html#pyFTS.partitioners.FCM.FCMPartitioner">[docs]</a><span class="k">class</span> <span class="nc">FCMPartitioner</span><span class="p">(</span><span class="n">partitioner</span><span class="o">.</span><span class="n">Partitioner</span><span class="p">):</span>
|
||
<span class="sd">"""</span>
|
||
<span class="sd"> </span>
|
||
<span class="sd"> """</span>
|
||
|
||
<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>
|
||
<span class="nb">super</span><span class="p">(</span><span class="n">FCMPartitioner</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="n">name</span><span class="o">=</span><span class="s2">"FCM"</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
|
||
|
||
<div class="viewcode-block" id="FCMPartitioner.build"><a class="viewcode-back" href="../../../pyFTS.partitioners.html#pyFTS.partitioners.FCM.FCMPartitioner.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>
|
||
<span class="n">sets</span> <span class="o">=</span> <span class="p">{}</span>
|
||
|
||
<span class="n">centroids</span> <span class="o">=</span> <span class="n">fuzzy_cmeans</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">partitions</span><span class="p">,</span> <span class="n">data</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
|
||
<span class="n">centroids</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">max</span><span class="p">)</span>
|
||
<span class="n">centroids</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">min</span><span class="p">)</span>
|
||
<span class="n">centroids</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">set</span><span class="p">(</span><span class="n">centroids</span><span class="p">))</span>
|
||
<span class="n">centroids</span><span class="o">.</span><span class="n">sort</span><span class="p">()</span>
|
||
<span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">np</span><span class="o">.</span><span class="n">arange</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">centroids</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">):</span>
|
||
<span class="n">_name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_name</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
|
||
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">membership_function</span> <span class="o">==</span> <span class="n">Membership</span><span class="o">.</span><span class="n">trimf</span><span class="p">:</span>
|
||
<span class="n">sets</span><span class="p">[</span><span class="n">_name</span><span class="p">]</span> <span class="o">=</span> <span class="n">FuzzySet</span><span class="o">.</span><span class="n">FuzzySet</span><span class="p">(</span><span class="n">_name</span><span class="p">,</span> <span class="n">Membership</span><span class="o">.</span><span class="n">trimf</span><span class="p">,</span>
|
||
<span class="p">[</span><span class="nb">round</span><span class="p">(</span><span class="n">centroids</span><span class="p">[</span><span class="n">c</span> <span class="o">-</span> <span class="mi">1</span><span class="p">],</span> <span class="mi">3</span><span class="p">),</span> <span class="nb">round</span><span class="p">(</span><span class="n">centroids</span><span class="p">[</span><span class="n">c</span><span class="p">],</span> <span class="mi">3</span><span class="p">),</span>
|
||
<span class="nb">round</span><span class="p">(</span><span class="n">centroids</span><span class="p">[</span><span class="n">c</span> <span class="o">+</span> <span class="mi">1</span><span class="p">],</span> <span class="mi">3</span><span class="p">)],</span>
|
||
<span class="nb">round</span><span class="p">(</span><span class="n">centroids</span><span class="p">[</span><span class="n">c</span><span class="p">],</span> <span class="mi">3</span><span class="p">))</span>
|
||
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">membership_function</span> <span class="o">==</span> <span class="n">Membership</span><span class="o">.</span><span class="n">trapmf</span><span class="p">:</span>
|
||
<span class="n">q1</span> <span class="o">=</span> <span class="p">(</span><span class="nb">round</span><span class="p">(</span><span class="n">centroids</span><span class="p">[</span><span class="n">c</span><span class="p">],</span> <span class="mi">3</span><span class="p">)</span> <span class="o">-</span> <span class="nb">round</span><span class="p">(</span><span class="n">centroids</span><span class="p">[</span><span class="n">c</span> <span class="o">-</span> <span class="mi">1</span><span class="p">],</span> <span class="mi">3</span><span class="p">))</span> <span class="o">/</span> <span class="mi">2</span>
|
||
<span class="n">q2</span> <span class="o">=</span> <span class="p">(</span><span class="nb">round</span><span class="p">(</span><span class="n">centroids</span><span class="p">[</span><span class="n">c</span> <span class="o">+</span> <span class="mi">1</span><span class="p">],</span> <span class="mi">3</span><span class="p">)</span> <span class="o">-</span> <span class="nb">round</span><span class="p">(</span><span class="n">centroids</span><span class="p">[</span><span class="n">c</span><span class="p">],</span> <span class="mi">3</span><span class="p">))</span> <span class="o">/</span> <span class="mi">2</span>
|
||
<span class="n">sets</span><span class="p">[</span><span class="n">_name</span><span class="p">]</span> <span class="o">=</span> <span class="n">FuzzySet</span><span class="o">.</span><span class="n">FuzzySet</span><span class="p">(</span><span class="n">_name</span><span class="p">,</span> <span class="n">Membership</span><span class="o">.</span><span class="n">trimf</span><span class="p">,</span>
|
||
<span class="p">[</span><span class="nb">round</span><span class="p">(</span><span class="n">centroids</span><span class="p">[</span><span class="n">c</span> <span class="o">-</span> <span class="mi">1</span><span class="p">],</span> <span class="mi">3</span><span class="p">),</span> <span class="nb">round</span><span class="p">(</span><span class="n">centroids</span><span class="p">[</span><span class="n">c</span><span class="p">],</span> <span class="mi">3</span><span class="p">)</span> <span class="o">-</span> <span class="n">q1</span><span class="p">,</span>
|
||
<span class="nb">round</span><span class="p">(</span><span class="n">centroids</span><span class="p">[</span><span class="n">c</span><span class="p">],</span> <span class="mi">3</span><span class="p">)</span> <span class="o">+</span> <span class="n">q2</span><span class="p">,</span> <span class="nb">round</span><span class="p">(</span><span class="n">centroids</span><span class="p">[</span><span class="n">c</span> <span class="o">+</span> <span class="mi">1</span><span class="p">],</span> <span class="mi">3</span><span class="p">)],</span>
|
||
<span class="nb">round</span><span class="p">(</span><span class="n">centroids</span><span class="p">[</span><span class="n">c</span><span class="p">],</span> <span class="mi">3</span><span class="p">))</span>
|
||
|
||
<span class="k">return</span> <span class="n">sets</span></div></div>
|
||
</pre></div>
|
||
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<div class="clearer"></div>
|
||
</div>
|
||
<div class="related" role="navigation" aria-label="related navigation">
|
||
<h3>Navigation</h3>
|
||
<ul>
|
||
<li class="right" style="margin-right: 10px">
|
||
<a href="../../../genindex.html" title="General Index"
|
||
>index</a></li>
|
||
<li class="right" >
|
||
<a href="../../../py-modindex.html" title="Python Module Index"
|
||
>modules</a> |</li>
|
||
<li class="nav-item nav-item-0"><a href="../../../index.html">pyFTS 1.2.3 documentation</a> »</li>
|
||
<li class="nav-item nav-item-1"><a href="../../index.html" >Module code</a> »</li>
|
||
</ul>
|
||
</div>
|
||
<div class="footer" role="contentinfo">
|
||
© Copyright 2018, Machine Intelligence and Data Science Laboratory - UFMG - Brazil.
|
||
Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.7.2.
|
||
</div>
|
||
</body>
|
||
</html> |