public FuzzyLinguisticVariable CreateFLV(string variableName)
{
FuzzyLinguisticVariable variableToReturn = new FuzzyLinguisticVariable();
fuzzyVariables.Add(variableName, variableToReturn);
return(variableToReturn);
}
// Always uses MaxAv.
public double DeFuzzify(string keyOfFLV)
{
RunRules();
FuzzyLinguisticVariable consequentToDefuzzify = fuzzyVariables[keyOfFLV];
// calculation is (sum of: (representative value * confidence) / (sum of confidence)
double sumRepValueConfidence = 0;
double sumOfConfidence = 0;
foreach (FuzzyRule rule in fuzzyRules)
{
// calculate sum of: (representative value * confidence)
sumRepValueConfidence += rule.FuzzyRealRule.DegreeOfMembership * rule.Consequent.MidPointMembershipValue;
// calculation of: (sum of confidence)
sumOfConfidence += rule.FuzzyRealRule.DegreeOfMembership;
}
// calculate defuzzified crisp value
double defuzzifiedValue = sumRepValueConfidence / sumOfConfidence;
return(defuzzifiedValue);
}