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java.lang.Object | +--nrc.fuzzy.FuzzySet | +--nrc.fuzzy.LRFuzzySet | +--nrc.fuzzy.TrapezoidFuzzySet
Used to build specialized FuzzySets that have a trapezoid shape.
The diagram below shows a TrapezoidFuzzySet.
Note that the Constructors have been defined to make the generation of
such curves as simple as possible. Only 4 points are required to define
the trapezoid shape.
This is a specialization of the LRFuzzySet where the left and right shapes of the curve are linear.
FuzzySet
,
LRFuzzySet
,
TriangleFuzzySet
,
LeftLinearFunction
,
RightLinearFunction
,
Serialized FormNested 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 | |
TrapezoidFuzzySet(double zeroLeftX,
double oneLeftX,
double oneRightX,
double zeroRightX)
Generate a FuzzySet with an trapeziod shape. |
Methods inherited from class nrc.fuzzy.LRFuzzySet |
checkParameters |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
public TrapezoidFuzzySet(double zeroLeftX, double oneLeftX, double oneRightX, double zeroRightX) throws XValuesOutOfOrderException
zeroLeftX
- the start of the curve at the left with a membership value of 0oneLeftX
- the end of the left upwards sloping line with a membership value of 1oneRightX
- the start of the right downwards sloping line with a membership value of 1zeroRightX
- the end of the right downwards sloping line with a membership value of 0
XValuesOutOfOrderException
- if the x values are not in correct increasing order
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