<spanid="pyfts-models-nonstationary-common-module"></span><h2>pyFTS.models.nonstationary.common module<aclass="headerlink"href="#module-pyFTS.models.nonstationary.common"title="Permalink to this headline">¶</a></h2>
<p>Non Stationary Fuzzy Sets</p>
<p>GARIBALDI, Jonathan M.; JAROSZEWSKI, Marcin; MUSIKASUWAN, Salang. Nonstationary fuzzy sets.
IEEE Transactions on Fuzzy Systems, v. 16, n. 4, p. 1072-1086, 2008.</p>
<emclass="property"><spanclass="pre">class</span><spanclass="w"></span></em><spanclass="sig-prename descclassname"><spanclass="pre">pyFTS.models.nonstationary.common.</span></span><spanclass="sig-name descname"><spanclass="pre">FuzzySet</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">name</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">mf</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">parameters</span></span></em>, <emclass="sig-param"><spanclass="o"><spanclass="pre">**</span></span><spanclass="n"><spanclass="pre">kwargs</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/common.html#FuzzySet"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.common.FuzzySet"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">get_lower</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">t</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/common.html#FuzzySet.get_lower"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.common.FuzzySet.get_lower"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">get_midpoint</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">t</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/common.html#FuzzySet.get_midpoint"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.common.FuzzySet.get_midpoint"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">get_upper</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">t</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/common.html#FuzzySet.get_upper"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.common.FuzzySet.get_upper"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">location</span></span><aclass="headerlink"href="#pyFTS.models.nonstationary.common.FuzzySet.location"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">location_params</span></span><aclass="headerlink"href="#pyFTS.models.nonstationary.common.FuzzySet.location_params"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">membership</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">x</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">t</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/common.html#FuzzySet.membership"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.common.FuzzySet.membership"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">noise</span></span><aclass="headerlink"href="#pyFTS.models.nonstationary.common.FuzzySet.noise"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">noise_params</span></span><aclass="headerlink"href="#pyFTS.models.nonstationary.common.FuzzySet.noise_params"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">perform_location</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">t</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">param</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/common.html#FuzzySet.perform_location"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.common.FuzzySet.perform_location"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">perform_width</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">t</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">param</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/common.html#FuzzySet.perform_width"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.common.FuzzySet.perform_width"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">perturbate_parameters</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">t</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/common.html#FuzzySet.perturbate_parameters"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.common.FuzzySet.perturbate_parameters"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">width</span></span><aclass="headerlink"href="#pyFTS.models.nonstationary.common.FuzzySet.width"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">width_params</span></span><aclass="headerlink"href="#pyFTS.models.nonstationary.common.FuzzySet.width_params"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-prename descclassname"><spanclass="pre">pyFTS.models.nonstationary.common.</span></span><spanclass="sig-name descname"><spanclass="pre">check_bounds</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">data</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">partitioner</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">t</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/common.html#check_bounds"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.common.check_bounds"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-prename descclassname"><spanclass="pre">pyFTS.models.nonstationary.common.</span></span><spanclass="sig-name descname"><spanclass="pre">check_bounds_index</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">data</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">partitioner</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">t</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/common.html#check_bounds_index"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.common.check_bounds_index"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-prename descclassname"><spanclass="pre">pyFTS.models.nonstationary.common.</span></span><spanclass="sig-name descname"><spanclass="pre">fuzzify</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">inst</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">t</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">fuzzySets</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/common.html#fuzzify"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.common.fuzzify"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-prename descclassname"><spanclass="pre">pyFTS.models.nonstationary.common.</span></span><spanclass="sig-name descname"><spanclass="pre">window_index</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">t</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">window_size</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/common.html#window_index"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.common.window_index"title="Permalink to this definition">¶</a></dt>
<h2>pyFTS.models.nonstationary.cvfts module<aclass="headerlink"href="#pyfts-models-nonstationary-cvfts-module"title="Permalink to this headline">¶</a></h2>
<spanid="pyfts-models-nonstationary-flrg-module"></span><h2>pyFTS.models.nonstationary.flrg module<aclass="headerlink"href="#module-pyFTS.models.nonstationary.flrg"title="Permalink to this headline">¶</a></h2>
<emclass="property"><spanclass="pre">class</span><spanclass="w"></span></em><spanclass="sig-prename descclassname"><spanclass="pre">pyFTS.models.nonstationary.flrg.</span></span><spanclass="sig-name descname"><spanclass="pre">NonStationaryFLRG</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">LHS</span></span></em>, <emclass="sig-param"><spanclass="o"><spanclass="pre">**</span></span><spanclass="n"><spanclass="pre">kwargs</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/flrg.html#NonStationaryFLRG"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.flrg.NonStationaryFLRG"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">get_key</span></span><spanclass="sig-paren">(</span><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/flrg.html#NonStationaryFLRG.get_key"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.flrg.NonStationaryFLRG.get_key"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">get_lower</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="o"><spanclass="pre">*</span></span><spanclass="n"><spanclass="pre">args</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/flrg.html#NonStationaryFLRG.get_lower"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.flrg.NonStationaryFLRG.get_lower"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">get_membership</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">data</span></span></em>, <emclass="sig-param"><spanclass="o"><spanclass="pre">*</span></span><spanclass="n"><spanclass="pre">args</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/flrg.html#NonStationaryFLRG.get_membership"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.flrg.NonStationaryFLRG.get_membership"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">get_midpoint</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="o"><spanclass="pre">*</span></span><spanclass="n"><spanclass="pre">args</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/flrg.html#NonStationaryFLRG.get_midpoint"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.flrg.NonStationaryFLRG.get_midpoint"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">get_upper</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="o"><spanclass="pre">*</span></span><spanclass="n"><spanclass="pre">args</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/flrg.html#NonStationaryFLRG.get_upper"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.flrg.NonStationaryFLRG.get_upper"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">unpack_args</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="o"><spanclass="pre">*</span></span><spanclass="n"><spanclass="pre">args</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/flrg.html#NonStationaryFLRG.unpack_args"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.flrg.NonStationaryFLRG.unpack_args"title="Permalink to this definition">¶</a></dt>
<h2>pyFTS.models.nonstationary.honsfts module<aclass="headerlink"href="#pyfts-models-nonstationary-honsfts-module"title="Permalink to this headline">¶</a></h2>
<h2>pyFTS.models.nonstationary.nsfts module<aclass="headerlink"href="#pyfts-models-nonstationary-nsfts-module"title="Permalink to this headline">¶</a></h2>
<spanid="pyfts-models-nonstationary-partitioners-module"></span><h2>pyFTS.models.nonstationary.partitioners module<aclass="headerlink"href="#module-pyFTS.models.nonstationary.partitioners"title="Permalink to this headline">¶</a></h2>
<emclass="property"><spanclass="pre">class</span><spanclass="w"></span></em><spanclass="sig-prename descclassname"><spanclass="pre">pyFTS.models.nonstationary.partitioners.</span></span><spanclass="sig-name descname"><spanclass="pre">PolynomialNonStationaryPartitioner</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">data</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">part</span></span></em>, <emclass="sig-param"><spanclass="o"><spanclass="pre">**</span></span><spanclass="n"><spanclass="pre">kwargs</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/partitioners.html#PolynomialNonStationaryPartitioner"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.partitioners.PolynomialNonStationaryPartitioner"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">build</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">data</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/partitioners.html#PolynomialNonStationaryPartitioner.build"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.partitioners.PolynomialNonStationaryPartitioner.build"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">get_polynomial_perturbations</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">data</span></span></em>, <emclass="sig-param"><spanclass="o"><spanclass="pre">**</span></span><spanclass="n"><spanclass="pre">kwargs</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/partitioners.html#PolynomialNonStationaryPartitioner.get_polynomial_perturbations"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.partitioners.PolynomialNonStationaryPartitioner.get_polynomial_perturbations"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">poly_width</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">par1</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">par2</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">rng</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">deg</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/partitioners.html#PolynomialNonStationaryPartitioner.poly_width"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.partitioners.PolynomialNonStationaryPartitioner.poly_width"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">scale_down</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">x</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">pct</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/partitioners.html#PolynomialNonStationaryPartitioner.scale_down"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.partitioners.PolynomialNonStationaryPartitioner.scale_down"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">scale_up</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">x</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">pct</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/partitioners.html#PolynomialNonStationaryPartitioner.scale_up"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.partitioners.PolynomialNonStationaryPartitioner.scale_up"title="Permalink to this definition">¶</a></dt>
<emclass="property"><spanclass="pre">class</span><spanclass="w"></span></em><spanclass="sig-prename descclassname"><spanclass="pre">pyFTS.models.nonstationary.partitioners.</span></span><spanclass="sig-name descname"><spanclass="pre">SimpleNonStationaryPartitioner</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">data</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">part</span></span></em>, <emclass="sig-param"><spanclass="o"><spanclass="pre">**</span></span><spanclass="n"><spanclass="pre">kwargs</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/partitioners.html#SimpleNonStationaryPartitioner"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.partitioners.SimpleNonStationaryPartitioner"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-name descname"><spanclass="pre">build</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">data</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/partitioners.html#SimpleNonStationaryPartitioner.build"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.partitioners.SimpleNonStationaryPartitioner.build"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-prename descclassname"><spanclass="pre">pyFTS.models.nonstationary.partitioners.</span></span><spanclass="sig-name descname"><spanclass="pre">simplenonstationary_gridpartitioner_builder</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">data</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">npart</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">transformation</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/partitioners.html#simplenonstationary_gridpartitioner_builder"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.partitioners.simplenonstationary_gridpartitioner_builder"title="Permalink to this definition">¶</a></dt>
<spanid="pyfts-models-nonstationary-perturbation-module"></span><h2>pyFTS.models.nonstationary.perturbation module<aclass="headerlink"href="#module-pyFTS.models.nonstationary.perturbation"title="Permalink to this headline">¶</a></h2>
<p>Pertubation functions for Non Stationary Fuzzy Sets</p>
<spanclass="sig-prename descclassname"><spanclass="pre">pyFTS.models.nonstationary.perturbation.</span></span><spanclass="sig-name descname"><spanclass="pre">exponential</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">x</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">parameters</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/perturbation.html#exponential"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.perturbation.exponential"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-prename descclassname"><spanclass="pre">pyFTS.models.nonstationary.perturbation.</span></span><spanclass="sig-name descname"><spanclass="pre">linear</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">x</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">parameters</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/perturbation.html#linear"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.perturbation.linear"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-prename descclassname"><spanclass="pre">pyFTS.models.nonstationary.perturbation.</span></span><spanclass="sig-name descname"><spanclass="pre">periodic</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">x</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">parameters</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/perturbation.html#periodic"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.perturbation.periodic"title="Permalink to this definition">¶</a></dt>
<spanclass="sig-prename descclassname"><spanclass="pre">pyFTS.models.nonstationary.perturbation.</span></span><spanclass="sig-name descname"><spanclass="pre">polynomial</span></span><spanclass="sig-paren">(</span><emclass="sig-param"><spanclass="n"><spanclass="pre">x</span></span></em>, <emclass="sig-param"><spanclass="n"><spanclass="pre">parameters</span></span></em><spanclass="sig-paren">)</span><aclass="reference internal"href="_modules/pyFTS/models/nonstationary/perturbation.html#polynomial"><spanclass="viewcode-link"><spanclass="pre">[source]</span></span></a><aclass="headerlink"href="#pyFTS.models.nonstationary.perturbation.polynomial"title="Permalink to this definition">¶</a></dt>
<h2>pyFTS.models.nonstationary.util module<aclass="headerlink"href="#pyfts-models-nonstationary-util-module"title="Permalink to this headline">¶</a></h2>
<spanid="module-contents"></span><h2>Module contents<aclass="headerlink"href="#module-pyFTS.models.nonstationary"title="Permalink to this headline">¶</a></h2>
<p>Fuzzy time series with nonstationary fuzzy sets, for heteroskedastic data</p>