keel.Algorithms.UnsupervisedLearning.AssociationRules.FuzzyRuleLearning.GeneticFuzzyApriori

Class MembershipFunction

java.lang.Object

keel.Algorithms.UnsupervisedLearning.AssociationRules.FuzzyRuleLearning.GeneticFuzzyApriori.MembershipFunction

All Implemented Interfaces:

java.lang.Comparable

public class MembershipFunction
extends java.lang.Object
implements java.lang.Comparable

Since:

JDK1.6

Version:

1.0

Author:

Written by Alvaro Lopez

Constructor Summary

Constructors

Constructor and Description
MembershipFunction() Default constructor

Method Summary

Modifier and Type	Method and Description
double	calculateOverlapLength(MembershipFunction membership_function) It computes the overlap length of a membership functions with respect to another one
MembershipFunction	clone() It allows to clone correctly a membership function
int	compareTo(java.lang.Object obj) It compares a membership function with another one in order to accomplish ordering (ascending) later.
double	getC() It returns the center of an isosceles-triangle
double	getW() It returns the spread of an isosceles-triangle
void	setC(double c) It sets the center of an isosceles-triangle
void	setW(double w) It sets the spread of an isosceles-triangle
java.lang.String	toString() It returns a raw string representation of a membership function

Methods inherited from class java.lang.Object

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

Constructor Detail

MembershipFunction

public MembershipFunction()

Default constructor

Method Detail

getC

public double getC()

It returns the center of an isosceles-triangle

Returns:

A value representing the center of the isosceles-triangle

setC

public void setC(double c)

It sets the center of an isosceles-triangle

Parameters:

c - A value representing the center of the isosceles-triangle

getW

public double getW()

It returns the spread of an isosceles-triangle

Returns:

A value representing the spread of the isosceles-triangle

setW

public void setW(double w)

It sets the spread of an isosceles-triangle

Parameters:

w - A value representing the spread of the isosceles-triangle

calculateOverlapLength

public double calculateOverlapLength(MembershipFunction membership_function)

It computes the overlap length of a membership functions with respect to another one

Parameters:

membership_function - The membership function with which to compute the overlap length

Returns:

A value indicating the overlap length

clone

public MembershipFunction clone()

It allows to clone correctly a membership function

Overrides:

clone in class java.lang.Object

Returns:

A copy of the membership function

compareTo

public int compareTo(java.lang.Object obj)

It compares a membership function with another one in order to accomplish ordering (ascending) later. The comparison is achieved by considering the values of the centers. For this reason, note that this method provides a natural ordering that is inconsistent with equals

Specified by:

compareTo in interface java.lang.Comparable

Parameters:

obj - The object to be compared

Returns:

A negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object

toString

public java.lang.String toString()

It returns a raw string representation of a membership function

Overrides:

toString in class java.lang.Object

Returns:

A raw string representation of the membership function