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97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
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/* Copyright 2010 Juan Rada-Vilela
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/*
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* File: Term.h
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* Author: jcrada
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*
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* Created on December 9, 2009, 12:27 AM
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*/
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#ifndef FL_TERM_H
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#define FL_TERM_H
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#include "flScalar.h"
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#include <vector>
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#include <math.h>
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#include <string>
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#include "defs.h"
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#include "FuzzyOperation.h"
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#include "FuzzyOperator.h"
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namespace fl {
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class FuzzyOperator; //forward-declaration
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class LinguisticTerm {
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public:
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enum eMembershipFunction {
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MF_TRIANGULAR = 0, MF_TRAPEZOIDAL, MF_RECTANGULAR, MF_SHOULDER, MF_SINGLETON,
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MF_COMPOUND, MF_FUNCTION, MF_TAKAGI_SUGENO, MF_DISCRETE,
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//to implement
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MF_SIGMOIDAL, MF_COSINE, MF_GAUSSIAN,
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};
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private:
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const FuzzyOperator* _fuzzy_operator;
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std::string _name;
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flScalar _minimum;
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flScalar _maximum;
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flScalar _modulation;
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public:
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LinguisticTerm();
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LinguisticTerm(const std::string& name, flScalar minimum = -INFINITY,
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flScalar maximum = INFINITY);
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LinguisticTerm(const FuzzyOperator& fuzzy_op, const std::string& name,
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flScalar minimum = -INFINITY, flScalar maximum = INFINITY);
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virtual ~LinguisticTerm();
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virtual void setFuzzyOperator(const FuzzyOperator& fuzzy_op);
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virtual const FuzzyOperator& fuzzyOperator() const;
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virtual void setName(const std::string& name);
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virtual std::string name() const;
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virtual void setMinimum(flScalar min);
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virtual flScalar minimum() const;
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virtual void setMaximum(flScalar max);
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virtual flScalar maximum() const;
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virtual void setModulation(flScalar degree);
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virtual flScalar modulation() const;
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virtual flScalar defuzzify() const;
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virtual std::string toString() const;
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virtual LinguisticTerm* clone() const = 0;
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virtual flScalar membership(flScalar crisp) const = 0;
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virtual eMembershipFunction type() const = 0;
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virtual void samples(std::vector<flScalar>& x, std::vector<flScalar>& y,
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int samples = FL_SAMPLE_SIZE, int out_of_range = 0) const;
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virtual flScalar area() const;
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virtual void centroid(flScalar&x, flScalar& y) const;
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virtual flScalar areaAndCentroid(flScalar& x, flScalar& y) const;
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};
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}
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#endif /* FL_TERM_H */
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