fl::Centroid Class Reference

The Centroid class is an IntegralDefuzzifier that computes the centroid of a fuzzy set represented in a Term. More...

#include <Centroid.h>

Inheritance diagram for fl::Centroid:

Collaboration diagram for fl::Centroid:

Public Member Functions
	Centroid (int resolution=defaultResolution())
virtual	~Centroid () FL_IOVERRIDE
virtual std::string	className () const FL_IOVERRIDE
	Returns the name of the class of the defuzzifier. More...
virtual Complexity	complexity (const Term *term) const FL_IOVERRIDE
	Computes the complexity of defuzzifying the given term. More...
virtual scalar	defuzzify (const Term *term, scalar minimum, scalar maximum) const FL_IOVERRIDE
	Computes the centroid of a fuzzy set. More...
virtual Centroid *	clone () const FL_IOVERRIDE
	Creates a clone of the defuzzifier. More...
Public Member Functions inherited from fl::IntegralDefuzzifier
	IntegralDefuzzifier (int resolution=defaultResolution())
virtual	~IntegralDefuzzifier () FL_IOVERRIDE
virtual void	setResolution (int resolution)
	Sets the resolution of the defuzzifier. More...
virtual int	getResolution () const
	Gets the resolution of the defuzzifier. More...
Public Member Functions inherited from fl::Defuzzifier
	Defuzzifier ()
virtual	~Defuzzifier ()

Static Public Member Functions
static Defuzzifier *	constructor ()
Static Public Member Functions inherited from fl::IntegralDefuzzifier
static void	setDefaultResolution (int defaultResolution)
	Sets the default resolution for integral-based defuzzifiers. More...
static int	defaultResolution ()
	Gets the default resolution for integral-based defuzzifiers. More...

Detailed Description

The Centroid class is an IntegralDefuzzifier that computes the centroid of a fuzzy set represented in a Term.

Author

Juan Rada-Vilela, Ph.D.

See also

BiSector

IntegralDefuzzifier

Defuzzifier

Since

4.0

Definition at line 34 of file Centroid.h.

Constructor & Destructor Documentation

Centroid()

fl::Centroid::Centroid ( int  resolution = defaultResolution() )

explicit

~Centroid()

virtual fl::Centroid::~Centroid ( )

virtual

Member Function Documentation

className()

virtual std::string fl::Centroid::className ( ) const

virtual

Returns the name of the class of the defuzzifier.

Returns

the name of the class of the defuzzifier

Implements fl::Defuzzifier.

clone()

virtual Centroid* fl::Centroid::clone ( ) const

virtual

Creates a clone of the defuzzifier.

Returns

a clone of the defuzzifier

Implements fl::Defuzzifier.

complexity()

virtual Complexity fl::Centroid::complexity ( const Term *  term ) const

virtual

Computes the complexity of defuzzifying the given term.

Parameters

term	is the term to defuzzify

Returns

the complexity of defuzzifying the given term

Implements fl::Defuzzifier.

constructor()

static Defuzzifier* fl::Centroid::constructor ( )

static

defuzzify()

virtual scalar fl::Centroid::defuzzify ( const Term *  term, scalar  minimum, scalar  maximum  ) const

virtual

Computes the centroid of a fuzzy set.

The defuzzification process integrates over the fuzzy set utilizing the boundaries given as parameters. The integration algorithm is the midpoint rectangle method (https://en.wikipedia.org/wiki/Rectangle_method).

Parameters

term	is the fuzzy set
minimum	is the minimum value of the fuzzy set
maximum	is the maximum value of the fuzzy set

Returns

the \(x\)-coordinate of the centroid of the fuzzy set

Implements fl::Defuzzifier.

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The documentation for this class was generated from the following file:

• fuzzylite/fl/defuzzifier/Centroid.h