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/*
fuzzylite (R), a fuzzy logic control library in C++.
Copyright (C) 2010-2017 FuzzyLite Limited. All rights reserved.
Author: Juan Rada-Vilela, Ph.D. <jcrada@fuzzylite.com>
This file is part of fuzzylite.
fuzzylite is free software: you can redistribute it and/or modify it under
the terms of the FuzzyLite License included with the software.
You should have received a copy of the FuzzyLite License along with
fuzzylite. If not, see <http://www.fuzzylite.com/license/>.
fuzzylite is a registered trademark of FuzzyLite Limited.
*/
#ifndef FL_FIRST_H
#define FL_FIRST_H
#include "fl/activation/Activation.h"
namespace fl {
/**
The First class is a RuleBlock Activation method that activates the first
@f$n@f$ rules whose activation degrees are greater than or equal to the given
threshold. The rules are iterated in the order they were added to the rule block.
@author Juan Rada-Vilela, Ph.D.
@see Last
@see Rule
@see RuleBlock
@see ActivationFactory
@since 6.0
*/
class FL_API First : public Activation {
private:
int _numberOfRules;
scalar _threshold;
public:
explicit First(int numberOfRules = 1, scalar threshold = 0.0);
virtual ~First();
FL_DEFAULT_COPY_AND_MOVE(First)
virtual std::string className() const FL_IOVERRIDE;
/**
Returns the number of rules and the threshold of the activation method
@return "numberOfRules threshold"
*/
virtual std::string parameters() const FL_IOVERRIDE;
/**
Configures the activation method with the given number of rules and
threshold
@param parameters as "numberOfRules threshold"
*/
virtual void configure(const std::string& parameters) FL_IOVERRIDE;
/**
Sets the number of rules for the activation degree
@param numberOfRules is the number of rules for the activation degree
*/
virtual void setNumberOfRules(int numberOfRules);
/**
Gets the number of rules for the activation degree
@return the number of rules for the activation degree
*/
virtual int getNumberOfRules() const;
/**
Sets the threshold for the activation degree
@param threshold is the threshold for the activation degree
*/
virtual void setThreshold(scalar threshold);
/**
Gets the threshold for the activation degree
@return the threshold for the activation degree
*/
virtual scalar getThreshold() const;
virtual Complexity complexity(const RuleBlock* ruleBlock) const FL_IOVERRIDE;
/**
Activates the first @f$n@f$ rules whose activation degrees are greater than or
equal to the given threshold. The rules are iterated in the order the
rules were added to the rule block.
@param ruleBlock is the rule block to activate
*/
virtual void activate(RuleBlock* ruleBlock) FL_IOVERRIDE;
virtual First* clone() const FL_IOVERRIDE;
static Activation* constructor();
};
}
#endif /* FL_FIRST_H */
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