nrc.fuzzy
Class RFuzzySet

java.lang.Object
  |
  +--nrc.fuzzy.FuzzySet
        |
        +--nrc.fuzzy.RFuzzySet

All Implemented Interfaces:

java.lang.Cloneable, java.io.Serializable

Direct Known Subclasses:

RightGaussianFuzzySet, RightLinearFuzzySet, ZFuzzySet

public class RFuzzySet

extends FuzzySet

implements java.io.Serializable

Used to build specialized FuzzySets that in general have membership values of 1 at the left edge and 0 at the right edge. Users do not generally use this class to create FuzzySets directly but most often use the subclasses of this class, such as ZFuzzySet or RightLinearFuzzySet. The shape of the curves between the left and right x values of an RFuzzySet are determined by the function specified. This function will be a class that implements the FuzzySetFunction Interface. In particular the ZFuzzySet class uses the ZFunction class to create a Z-shaped curve between the left and right x values.

The diagram below shows the concept of the RFuzzySet.



The code below shows how the ZFuzzySet constructor is defined.

  private static ZFunction szf = new ZFunction();

  public ZFuzzySet(double leftEdge, double rightEdge) throws XValuesOutOfOrderException 
  {
      super(leftEdge, rightEdge, szf);
  }
 

See Also:

FuzzySet, LRFuzzySet, ZFuzzySet, ZFunction, RightLinearFunction, RightLinearFuzzySet, Serialized Form

Nested Class Summary

Nested classes inherited from class nrc.fuzzy.FuzzySet

FuzzySet.UITools

Field Summary

Fields inherited from class nrc.fuzzy.FuzzySet

BFALSE, BTRUE, COLLINEAR_OR_PARALLEL, INCREMENT, INTERSECTION, MAX_INITIAL_POINTS, MAXMIN, NO_INTERSECTION, numPoints, set, simplified, SUM, tool, toStringPrecision, UNION

Constructor Summary

RFuzzySet(double leftX, double rightX, nrc.fuzzy.FuzzySetFunction rightFunction)
Create an RFuzzySet using the FuzzySetFunction supplied to construct it.

Method Summary

protected void

checkParameters(double leftX, double rightX) Checks that left x value is less than or equal to right x value.

Methods inherited from class nrc.fuzzy.FuzzySet

appendSetPoint, appendSetPoint, centerOfAreaDefuzzify, checkXValueOrder, checkYValueRange, concat, concat, confineToXBounds, copyFuzzySet, equals, findMaxYOverlapValue, fuzzyComplement, fuzzyEqual, fuzzyIntersection, fuzzyIntersection, fuzzyIntersectionUnion, fuzzyNormalize, fuzzyScale, fuzzySum, fuzzySum, fuzzyUnion, fuzzyUnion, getAlphaCut, getArea, getArea, getMaxY, getMembership, getMinY, getPoint, getSupport, getUITools, getX, getXforMembership, getY, goingDown, goingUp, horizontalIntersection, horizontalIntersectionUnion, horizontalUnion, incrementArrayLength, incrementArrayLength, insertSetPoint, insertSetPoint, isConvex, isEmpty, isNormal, isSimplified, maximumDefuzzify, maximumOfIntersection, maximumOfIntersection, momentDefuzzify, noIntersectionTest, nonIntersectionTest, plotFuzzySet, plotFuzzySets, removeSetPoint, removeSetPoint, sameDirection, sameSign, setToStringPrecision, shiftArrayLeft, shiftArrayRight, simplifySet, size, testArrayLength, toString, trimToSize, weightedAverageDefuzzify

Methods inherited from class java.lang.Object

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

Constructor Detail

RFuzzySet

public RFuzzySet(double leftX,
                 double rightX,
                 nrc.fuzzy.FuzzySetFunction rightFunction)
          throws XValuesOutOfOrderException

Create an RFuzzySet using the FuzzySetFunction supplied to construct it.

Parameters:

leftX - Left x value (where membership is 1) of the R (right sided) FuzzySet

rightX - Right x value (where membership is 0) of the R (right sided) FuzzySet

rightFunction - Function that will generate the shaped right side for the FuzzySet

Throws:

XValuesOutOfOrderException

Method Detail

checkParameters

protected void checkParameters(double leftX,
                               double rightX)
                        throws XValuesOutOfOrderException

Checks that left x value is less than or equal to right x value.

Parameters:

leftX - Left x value (where membership is 1) of the R (right sided) FuzzySet

rightX - Right x value (where membership is 0) of the R (right sided) FuzzySet

Throws:

XValuesOutOfOrderException