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Diffstat (limited to 'fuzzylite/fl/hedge/Seldom.h')
-rw-r--r-- | fuzzylite/fl/hedge/Seldom.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/fuzzylite/fl/hedge/Seldom.h b/fuzzylite/fl/hedge/Seldom.h new file mode 100644 index 0000000..0bbedbf --- /dev/null +++ b/fuzzylite/fl/hedge/Seldom.h @@ -0,0 +1,56 @@ +/* + 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_SELDOM_H +#define FL_SELDOM_H + +#include "fl/hedge/Hedge.h" + +namespace fl { + + /** + The Seldom class is a Hedge located second in the ordered set + (Not, Seldom, Somewhat, Very, Extremely, Any). + + @author Juan Rada-Vilela, Ph.D. + @see Hedge + @see HedgeFactory + @since 4.0 + */ + class FL_API Seldom FL_IFINAL : public Hedge { + public: + std::string name() const FL_IOVERRIDE; + + Complexity complexity() const FL_IOVERRIDE; + + /** + Computes the hedge for the membership function value @f$x@f$ + @param x is a membership function value + @return @f$ + \begin{cases} + \sqrt{0.5x} & \mbox{if $x \le 0.5$} \cr + 1-\sqrt{0.5(1-x)} & \mbox{otherwise}\cr + \end{cases} + @f$ + */ + scalar hedge(scalar x) const FL_IOVERRIDE; + Seldom* clone() const FL_IOVERRIDE; + + static Hedge* constructor(); + }; +} + +#endif /* FL_SELDOM_H */ |