zeus::TFuzzySet Class Reference

#include <FuzzySet.h>

List of all members.

Public Types
enum	EFuzzyNorm { etZadeh, etProdConnect, etLukasiewiez, etYager }
enum	EDefuzzyMethod {   etCenterOfGrapvity, etIndexedCenterOfGravity, etCenterOfSums, etFirstOfMaximum,   etMiddleOfMaximum, etLastOfMaximum }
Public Member Functions
	TFuzzySet (Int iResolution=100)
	TFuzzySet (const TFuzzySet &set)
virtual	~TFuzzySet ()
void	initTrapezodial (const Float &rfX1, const Float &rfX2, const Float &rfX3, const Float &rfX4)
void	initGaussianSyn (const Float &rfA, const Float &rfWhm)
void	initGaussianAsyn (const Float &rfA, const Float &rfWhm1, const Float &rfWhm2)
void	initSigmodial (const Float &rfA, const Float &rfB)
Float	getValue (Int iIndex) const
Float	getMemberShip (const Float &rfX) const
Int	getResolution () const
void	setValue (Int iIndex, const Float &rfValue)
virtual Float	getDefuzzificationValue (EDefuzzyMethod eMethod=etCenterOfGrapvity, const Float &rfParam=1.0) const
virtual TFuzzySet	unionS (const TFuzzySet &set, EFuzzyNorm eNorm=etZadeh, const Float &rfParam=1.0) const
virtual TFuzzySet	intersectS (const TFuzzySet &set, EFuzzyNorm eNorm=etZadeh, const Float &rfParam=1.0) const
virtual TFuzzySet	notS () const
virtual TFuzzySet	concentrate () const
virtual TFuzzySet	dilate () const
virtual TFuzzySet	intense () const
virtual TFuzzySet	lingVery () const
virtual TFuzzySet	lingMoreOrLess () const
virtual TFuzzySet	lingVeryVery () const
virtual TFuzzySet	lingNotVery () const
virtual TFuzzySet	lingMore () const
virtual TFuzzySet	lingLess () const
TFuzzySet &	operator= (const TFuzzySet &set)
bool	operator== (const TFuzzySet &set) const
Protected Member Functions
Float	sum () const
Protected Attributes
TArrayList< Float >	m_lstValues
	Array of Values.
Int	m_iResolution
	Resolution of the set.

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Detailed Description

This class defines a fuzzy set and all operators used to modify and transform the set. The set is used together with the TFuzzyLogic.

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Member Enumeration Documentation

enum zeus::TFuzzySet::EDefuzzyMethod

Enumeration to spezify the way how to calculate the defuzzification

Enumerator:

etCenterOfGrapvity	Gets the defuzzification value as the center of gravity
etIndexedCenterOfGravity	Gets the defuzzification value as the center of gravity
etCenterOfSums	Gets the defuzzification value as the center of the sum
etFirstOfMaximum	Gets the defuzzification value as the first maximum value
etMiddleOfMaximum	Gets the defuzzification value as the middle of all maximum values
etLastOfMaximum	Gets the defuzzification value as the last maximum value

enum zeus::TFuzzySet::EFuzzyNorm

Enumeration to specify the way how the fuzzy set will be computed

Enumerator:

etZadeh	Uses the connectivities of Zadeh
etProdConnect	Uses the product connectivities
etLukasiewiez	Uses the multi value logic of Lukasiewiez
etYager	Uses the connectivities of Yager

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Constructor & Destructor Documentation

TFuzzySet::TFuzzySet

(

Int

iResolution = 100 )

Creates a fuzzy set

Parameters:

res	: Resolution of the set.

TFuzzySet::TFuzzySet

(

const TFuzzySet &

set )

Copy constructor of the fuzzy set

Parameters:

set	: Object to copy

TFuzzySet::~TFuzzySet

(

)

[virtual]

Destroys the fuzzy set

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Member Function Documentation

TFuzzySet TFuzzySet::concentrate

(

)

const [virtual]

Operator to concentrate a fuzzy set

Returns:

concentrated set

TFuzzySet TFuzzySet::dilate

(

)

const [virtual]

Operator to dilate a fuzzy set

Returns:

dilated set

Float TFuzzySet::getDefuzzificationValue	(	EDefuzzyMethod	eMethod = etCenterOfGrapvity,
		const Float &	rfParam = 1.0
	)		const [virtual]

Gets a defuzzificated value

Parameters:

eMethod	: Method tu use to get the defuzzification value
rfParam	: used for dmIndexedCenterOfGravity as a threshold

Returns:

defuzzificated value

Float TFuzzySet::getMemberShip

(

const Float &

rfX )

const

Gets the membership of a value. The variable x must be between 0 and 1.

Parameters:

rfX

: value

Returns:

membership

Int zeus::TFuzzySet::getResolution

(

)

const [inline]

Returns the resolution of a fuzzy set

Returns:

Resolution

Float zeus::TFuzzySet::getValue

(

Int

iIndex )

const [inline]

Gets the value of the fuzzy set at position index

Parameters:

iIndex

: Value position

Returns:

value

void TFuzzySet::initGaussianAsyn	(	const Float &	rfA,
		const Float &	rfWhm1,
		const Float &	rfWhm2
	)

Initialises the set using the asynchron gaussian function

void TFuzzySet::initGaussianSyn	(	const Float &	rfA,
		const Float &	rfWhm
	)

Initialises the set using the synchron gaussian function

void TFuzzySet::initSigmodial	(	const Float &	rfA,
		const Float &	rfB
	)

Initialises the set using the sigmodial function

void TFuzzySet::initTrapezodial	(	const Float &	rfX1,
		const Float &	rfX2,
		const Float &	rfX3,
		const Float &	rfX4
	)

Initialises the set using the trapezodial function.

Parameters:

rfX1	: Beginning of the positive slope
rfX2	: End of the positive slope
rfX3	: Beginning of the negative slope
rfX4	: End of the negative slope

TFuzzySet TFuzzySet::intense

(

)

const [virtual]

Operator to intense a fuzzy set

Returns:

intensed set

TFuzzySet TFuzzySet::intersectS	(	const TFuzzySet &	set,
		EFuzzyNorm	eNorm = etZadeh,
		const Float &	rfParam = 1.0
	)		const [virtual]

Creates the intersection of two fuzzy sets (1st set is this, 2nd set is [set]

Parameters:

set	: 2nd set
eNorm	: Norm how to get the intersection of two sets
rfParam	: Used by the norm fnYager

Returns:

new Fuzzy set

TFuzzySet TFuzzySet::lingLess

(

)

const [virtual]

Linguistic modifier LESS of a fuzzy set

TFuzzySet TFuzzySet::lingMore

(

)

const [virtual]

Linguistic modifier MORE of a fuzzy set

TFuzzySet zeus::TFuzzySet::lingMoreOrLess

(

)

const [inline, virtual]

Linguistic modifier MOR OR LESS of a fuzzy set

TFuzzySet zeus::TFuzzySet::lingNotVery

(

)

const [inline, virtual]

Linguistic modifier NOT VERY of a fuzzy set

TFuzzySet zeus::TFuzzySet::lingVery

(

)

const [inline, virtual]

Linguistic modifier VERY of a fuzzy set

TFuzzySet zeus::TFuzzySet::lingVeryVery

(

)

const [inline, virtual]

Linguistic modifier VERY VERY of a fuzzy set

TFuzzySet TFuzzySet::notS

(

)

const [virtual]

Operator to get the inverse of this set

Returns:

inverse set

TFuzzySet & TFuzzySet::operator=

(

const TFuzzySet &

set )

Copy operator

Parameters:

set	: Set to copy

Returns:

the copied set

bool TFuzzySet::operator==

(

const TFuzzySet &

set )

const

Equals operator

Parameters:

set	: Set to check if equal

Return values:

true	: Set is equal
false	: Set is not equal

void zeus::TFuzzySet::setValue	(	Int	iIndex,
		const Float &	rfValue
	)		[inline]

Sets a new value to the fuzzy set

Parameters:

iIndex	: Index of the value
rfValue	: new value

Float TFuzzySet::sum

(

)

const [protected]

Gets the sum of the Fuzzy Set

Returns:

sum

TFuzzySet TFuzzySet::unionS	(	const TFuzzySet &	set,
		EFuzzyNorm	eNorm = etZadeh,
		const Float &	rfParam = 1.0
	)		const [virtual]

Creates the union of two fuzzy sets (1st set is this, 2nd set is [set]

Parameters:

set	: 2nd set
eNorm	: Norm how to get the union
rfParam,:	used by the norm fnYager

Returns:

new Fuzzy set

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Member Data Documentation

Int zeus::TFuzzySet::m_iResolution [protected]

Resolution of the set.

TArrayList<Float> zeus::TFuzzySet::m_lstValues [protected]

Array of Values.

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

• FuzzySet.h
• FuzzySet.cpp