keel.Algorithms.Fuzzy_Rule_Learning.Shared.Fuzzy

Class FuzzyNumberTRLEFT

java.lang.Object

keel.Algorithms.Fuzzy_Rule_Learning.Shared.Fuzzy.Fuzzy

keel.Algorithms.Fuzzy_Rule_Learning.Shared.Fuzzy.FuzzyNumberTRLEFT

public class FuzzyNumberTRLEFT
extends Fuzzy

Represents a right-angled triangular fuzzy number with the right-angle in left side. Each support member lower than center has the membership value of 1.0 and right represent the extreme of the triangular fuzzy number.

Since:

JDK1.4

Version:

1.0

Author:

Written by Luciano Sánchez (University of Oviedo) 20/01/2004, Modified by Enrique A. de la Cal (University of Oviedo) 13/12/2008

Constructor Summary

Constructors

Constructor and Description
FuzzyNumberTRLEFT(double c, double r) A constructor for a left right-angled triangle fuzzy number, given the extremes.
FuzzyNumberTRLEFT(FuzzyNumberTRLEFT b) A copy constructor for a left right-angled triangle fuzzy number, given other left right-angled triangle fuzzy number.

Method Summary

Modifier and Type	Method and Description
void	Asigna(FuzzyNumberTRLEFT b) Copies the FuzzyNumberTRLEFT parameter over the present instance.
java.lang.String	aString() Returns a printable version of the instance.
Fuzzy	clone() Creates and returns a copy of this object.
boolean	equals(Fuzzy b) Indicates whether some other object is "equal to" this one.
double	evaluateMembership(double x) Returns the membership level for the individual x.
double	massCentre() Returns the centroid of the present fuzzy number.
FuzzyInterval	support() Creates and returns a FuzzyInterval with the extremes of the support set.

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FuzzyNumberTRLEFT

public FuzzyNumberTRLEFT(double c,
                         double r)

A constructor for a left right-angled triangle fuzzy number, given the extremes.

Parameters:

c - the center element of the triangular fuzzy number.

r - the upper extreme of the triangular fuzzy number.

FuzzyNumberTRLEFT

public FuzzyNumberTRLEFT(FuzzyNumberTRLEFT b)

A copy constructor for a left right-angled triangle fuzzy number, given other left right-angled triangle fuzzy number.

Parameters:

b - to be copied.

Method Detail

Asigna

public void Asigna(FuzzyNumberTRLEFT b)

Copies the FuzzyNumberTRLEFT parameter over the present instance.

Parameters:

b - a FuzzyNumberTRLEFT object to be copied

equals

public boolean equals(Fuzzy b)

Indicates whether some other object is "equal to" this one.

Specified by:

equals in class Fuzzy

Parameters:

b - the reference object with which to compare.

Returns:

true if this object is the same as the B argument; false otherwise.

clone

public Fuzzy clone()

Creates and returns a copy of this object.

Specified by:

clone in class Fuzzy

Returns:

a clone of this instance.

evaluateMembership

public double evaluateMembership(double x)

Returns the membership level for the individual x.

Specified by:

evaluateMembership in class Fuzzy

Parameters:

x - the individual which membership is to be calculated.

Returns:

the membership level for individual x.

massCentre

public double massCentre()

Returns the centroid of the present fuzzy number.

Specified by:

massCentre in class Fuzzy

Returns:

the centroid of the present fuzzy number.

support

public FuzzyInterval support()

Creates and returns a FuzzyInterval with the extremes of the support set.

Specified by:

support in class Fuzzy

Returns:

an interval with the extremes of the support set.

aString

public java.lang.String aString()

Returns a printable version of the instance.

Specified by:

aString in class Fuzzy

Returns:

a String with a printable version of the left right-angled triangular fuzzy number.