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Diffstat (limited to 'fuzzylite/fl/hedge/HedgeFunction.h')
-rw-r--r-- | fuzzylite/fl/hedge/HedgeFunction.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/fuzzylite/fl/hedge/HedgeFunction.h b/fuzzylite/fl/hedge/HedgeFunction.h new file mode 100644 index 0000000..bc8930d --- /dev/null +++ b/fuzzylite/fl/hedge/HedgeFunction.h @@ -0,0 +1,82 @@ +/* + 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_HEDGEFUNCTION_H +#define FL_HEDGEFUNCTION_H + +#include "fl/hedge/Hedge.h" + +#include "fl/term/Function.h" + +namespace fl { + + /** + The HedgeFunction class is a customizable Hedge via Function, which + computes any function based on the @f$x@f$ value. This hedge is not + registered with the HedgeFactory due to issues configuring the formula + within. To register the hedge, a static method with the + constructor needs to be manually created and registered. Please, check the + file `test/hedge/HedgeFunction.cpp` for further details. + + @author Juan Rada-Vilela, Ph.D. + @see Function + @see Hedge + @see HedgeFactory + @since 6.0 + */ + + class FL_API HedgeFunction FL_IFINAL : public Hedge { + private: + Function _function; + public: + explicit HedgeFunction(const std::string& formula = ""); + + std::string name() const FL_IOVERRIDE; + + /** + Returns the reference to the Function + @return the reference to the Function + */ + Function& function(); + + /** + Loads the function with the given formula + @param formula is a valid formula in infix notation + */ + void setFormula(const std::string& formula); + /** + Returns the formula loaded into the function + @return the formula loaded into the function + */ + std::string getFormula() const; + + Complexity complexity() const FL_IOVERRIDE; + + /** + Computes the hedge for the membership function value @f$x@f$ utilizing + the given function via HedgeFunction::setFormula() + @param x is a membership function value + @return the evaluation of the function + */ + scalar hedge(scalar x) const FL_IOVERRIDE; + HedgeFunction* clone() const FL_IOVERRIDE; + + static Hedge* constructor(); + }; +} + +#endif /* FL_HEDGEFUNCTION_H */ + |