// METHODE PRIVEE
/// <summary>
/// Search and compute the premise degree for given problem : if premise is applicable returns the degree, if not returns double.Nan
/// </summary>
/// <param name="a_problem">FuzzyValue collections of a given problem</param>
/// <param name="a_localPremise">Premise to check</param>
/// <returns>Degree of the premise or double.Nan if premise not applicable</returns>
protected double SearchAndComputePremiseDegree(List <FuzzyValue> a_problem, FuzzyExpression a_localPremise)
{
List <FuzzyValue> .Enumerator enumerator = a_problem.GetEnumerator();
LinguisticValue linguisticValue = null;
while (enumerator.MoveNext())
{
if (a_localPremise.VariableName == enumerator.Current.VariableName)
{
linguisticValue = a_localPremise.VariableName.LinguisticValueByName(a_localPremise.ValueName);
if (linguisticValue != null)
{
return(linguisticValue.DegreeAtValue(enumerator.Current.Value));
}
else
{
return(double.NaN);
}
}
}
return(double.NaN);
}
// CONSTRUCTEUR
public FuzzyRule(List <FuzzyExpression> a_premises, FuzzyExpression a_conclusion)
{
Premises = a_premises;
Conclusion = a_conclusion;
}