internal void Defuzzify_WithTwoTriangles_ReturnsExpectedResult()
{
// Arrange
var fuzzySet1 = new FuzzySet("left", TriangularFunction.Create(1, 2, 3));
var fuzzySet2 = new FuzzySet("right", TriangularFunction.Create(3, 4, 5));
var fuzzyOutput = new List <FuzzyOutput>
{
new FuzzyOutput(
Label.Create("Balance"),
fuzzySet1,
UnitInterval.One()),
new FuzzyOutput(
Label.Create("Balance"),
fuzzySet2,
UnitInterval.One())
};
var centroidDefuzzifier = new CentroidDefuzzifier();
// Act
var result = centroidDefuzzifier.Defuzzify(fuzzyOutput);
// Assert
Assert.Equal("Balance", result.Subject.Value);
Assert.Equal(3, result.Value);
}
private void SetSystemOutput(FuzzyOutput fuzzyOutput)
{
if (fuzzyOutput.OutputList.Count != 0)
{
_systemOutputValue = _centroidDefuzzifier.Defuzzify(fuzzyOutput, new MinimumNorm());
_systemOutputPercentage = fuzzyOutput.OutputList.Max(x => x.FiringStrength);
_systenOutputName = fuzzyOutput.OutputList.First(x => x.FiringStrength == _systemOutputPercentage).Label;
}
else
{
_systemOutputValue = float.NaN;
_systenOutputName = "STOP";
_systemOutputPercentage = 1;
}
}
internal void Defuzzify_WithTriangle_ReturnsExpectedResult()
{
// Arrange
var fuzzySet = new FuzzySet("centre", TriangularFunction.Create(-1, 0, 1));
var fuzzyOutput = new List <FuzzyOutput>
{
new FuzzyOutput(
Label.Create("Balance"),
fuzzySet,
UnitInterval.Create(0.5))
};
var centroidDefuzzifier = new CentroidDefuzzifier();
// Act
var result = centroidDefuzzifier.Defuzzify(fuzzyOutput);
// Assert
Assert.Equal("Balance", result.Subject.Value);
Assert.Equal(0, result.Value);
}
internal void Defuzzify_WhenSubjectsUnrelated_Throws()
{
// Arrange
var fuzzySet = new FuzzySet("centre", TriangularFunction.Create(-1, 0, 1));
var fuzzyOutput = new List <FuzzyOutput>
{
new FuzzyOutput(
Label.Create("Subject1"),
fuzzySet,
UnitInterval.One()),
new FuzzyOutput(
Label.Create("Subject2"),
fuzzySet,
UnitInterval.One())
};
var centroidDefuzzifier = new CentroidDefuzzifier();
// Act
// Assert
Assert.Throws <InvalidOperationException>(() => centroidDefuzzifier.Defuzzify(fuzzyOutput));
}
