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/*
Author: Juan Rada-Vilela, Ph.D.
Copyright (C) 2010-2014 FuzzyLite Limited
All rights reserved
This file is part of fuzzylite.
fuzzylite is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option)
any later version.
fuzzylite is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
for more details.
You should have received a copy of the GNU Lesser General Public License
along with fuzzylite. If not, see <http://www.gnu.org/licenses/>.
fuzzylite™ is a trademark of FuzzyLite Limited.
*/
#ifndef FL_SIGMOIDDIFFERENCE_H
#define FL_SIGMOIDDIFFERENCE_H
#include "fl/term/Term.h"
namespace fl {
class FL_API SigmoidDifference : public Term {
protected:
scalar _left;
scalar _rising;
scalar _falling;
scalar _right;
public:
explicit SigmoidDifference(const std::string& name = "",
scalar left = fl::nan,
scalar rising = fl::nan,
scalar falling = fl::nan,
scalar right = fl::nan,
scalar height = 1.0);
virtual ~SigmoidDifference() FL_IOVERRIDE;
FL_DEFAULT_COPY_AND_MOVE(SigmoidDifference)
virtual std::string className() const FL_IOVERRIDE;
virtual std::string parameters() const FL_IOVERRIDE;
virtual void configure(const std::string& parameters) FL_IOVERRIDE;
virtual scalar membership(scalar x) const FL_IOVERRIDE;
virtual void setLeft(scalar leftInflection);
virtual scalar getLeft() const;
virtual void setRising(scalar risingSlope);
virtual scalar getRising() const;
virtual void setFalling(scalar fallingSlope);
virtual scalar getFalling() const;
virtual void setRight(scalar rightInflection);
virtual scalar getRight() const;
virtual SigmoidDifference* clone() const FL_IOVERRIDE;
static Term* constructor();
};
}
#endif /* FL_SIGMOIDDIFFERENCE_H */
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