ABLE 2.0.0 07/02/2003 10:25:01

com.ibm.able.data
Class AbleFuzzySetGaussian

java.lang.Object
  |
  +--com.ibm.able.data.AbleLiteral
        |
        +--com.ibm.able.data.AbleFuzzySet
              |
              +--com.ibm.able.data.AbleFuzzySetGaussian
All Implemented Interfaces:
AbleRd, java.io.Serializable

public class AbleFuzzySetGaussian
extends AbleFuzzySet
implements java.io.Serializable

This class defines the Able data gaussian fuzzy set. A gaussian set is a bell-shaped curve useful for representing fuzzy numbers. The slope of membership goes to zero very quickly with a very short tail.

See Also:
Serialized Form

Fields inherited from class com.ibm.able.data.AbleFuzzySet
AlphaCutDefault, AlphaCutStrong, AlphaCutWeak, CorrelationMethodDefault, CorrelationMethodMinimise, CorrelationMethodProduct, DefuzzifyMethodAverageHeight, DefuzzifyMethodCentroid, DefuzzifyMethodDefault, DefuzzifyMethodMaxHeight, FUZZY_ADD, FuzzyInferenceMethodDefault, HedgeAbout, HedgeAbove, HedgeBelow, HedgeCloseTo, HedgeExtremely, HedgeGenerally, HedgeInVicinityOf, HedgeNot, HedgeNull, HedgePositively, HedgeSlightly, HedgeSomewhat, HedgeVery, MaxValues, MIN_MAX, myAlphaCut, myComplementFlag, myComplementName, myDomainHi, myDomainLo, myFlexFactor, myNumberOfValues, myParentVar, myPtBeg, myPtCenter, myPtEnd, myPtFlex, myPtLeft, myPtLeftCore, myPtRight, myPtRightCore, myScalarVecSav, mySetDir, mySetName, mySetType, myTruthVecSav, myTruthVector, myWeight, myWidth, PRODUCT_OR, SetDirectionDown, SetDirectionLeft, SetDirectionRight, SetDirectionUp, SetTypeBeta, SetTypeGaussian, SetTypeLinear, SetTypePi, SetTypeSegments, SetTypeShoulder, SetTypeSigmoid, SetTypeTrapezoid, SetTypeTriangle, SetTypeWork
 
Constructor Summary
AbleFuzzySetGaussian(AbleFuzzyVariable theParentVar, java.lang.String theSetName, double theAlphaCut, double thePtCenter, double theWidth)
          Create a new fuzzy set.
 
Method Summary
 java.lang.String arlString()
          Return a formal rule language string representation of this fuzzy set.
 java.lang.String toString()
          Retrieve a string describing (the contents of) the object.
 java.lang.String xmlString()
          Return a formal XML string representation of this fuzzy set.
 
Methods inherited from class com.ibm.able.data.AbleFuzzySet
arlCRdString, Copyright, CorrelationMethod, CorrelationMethodRl, CorrelationMethodXml, DefuzzifyMethod, DefuzzifyMethodRl, DefuzzifyMethodXml, FuzzyInferenceMethod, FuzzyInferenceMethodRl, FuzzyInferenceMethodXml, getAlphaCut, getBooleanValue, getDataType, getDataTypeClass, getDataTypeClassName, getDomainHi, getDomainLo, getFlexFactor, getFuzzyValue, getGenericValue, getNumberOfValues, getNumericValue, getPtBeg, getPtCenter, getPtEnd, getPtFlex, getPtLeft, getPtLeftCore, getPtRight, getPtRightCore, getReferent, getScalarVector, getSetDir, getSetName, getSetProperties, getSetType, getStringValue, getTruthValues, getTruthVector, getValue, getWeight, getWidth, Hedge, HedgeRl, HedgeXml, setAlphaCut, SetDirection, SetDirectionRl, SetDirectionXml, SetType, SetTypeRl, SetTypeXml, traceString, xmlCRdString
 
Methods inherited from class com.ibm.able.data.AbleLiteral
bitwiseAND, bitwiseNOT, bitwiseOR, bitwiseShiftLeft, bitwiseShiftRight, bitwiseShiftRightZeroFill, bitwiseXOR, cmpEq, cmpGt, cmpGtEq, cmpIs, cmpLt, cmpLtEq, cmpNeq, compDivide, compMinus, compModulo, compMultiply, compPlus, compUnaryMinus, getDataTypeAsString, getReferents, getTemplateString, isConstant, logicalAND, logicalNOT, logicalOR
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

AbleFuzzySetGaussian

public AbleFuzzySetGaussian(AbleFuzzyVariable theParentVar,
                            java.lang.String theSetName,
                            double theAlphaCut,
                            double thePtCenter,
                            double theWidth)
Create a new fuzzy set.
Parameters:
theParentVar - A reference to the fuzzy variable that contains this fuzzy set.

theSetName - The name of this fuzzy set.

theAlphaCut - The low cut-off value for this fuzzy set.

thePtCenter - The point around which the curve is centered.

theWidth - A number that influences the width of the curve, whose overall shape is hard to predict. Typical values are from 0.9 through 5.0 inclusive, although any value greater than zero is allowed.

Method Detail

arlString

public java.lang.String arlString()
Return a formal rule language string representation of this fuzzy set.
Returns:
A String describing the object in rule language.

xmlString

public java.lang.String xmlString()
Return a formal XML string representation of this fuzzy set.
Returns:
A String describing the object in XML.

toString

public java.lang.String toString()
Retrieve a string describing (the contents of) the object.
Overrides:
toString in class AbleFuzzySet
Returns:
A String containing the current contents of the object.


ABLE 2.0.0 07/02/2003 10:25:01

(C) Copyright IBM Corporation 1999, 2003