public FuzzySetCreatorViewModel()
{
MembershipFunction = new TriangularMembershipFunction();
}
public static (List <Quantifier>, List <Qualifier>, List <Summarizer>, LogicalOperation) ParseFuzzySetFile(
int dataCount,
string path = DefaultPath)
{
path = $"{FuzzySetsFolderPath}/{path}";
var quantifiers = new List <Quantifier>();
var qualifiers = new List <Qualifier>();
var summarizers = new List <Summarizer>();
var currentParsingMode = ParsingMode.Quantifier;
var currentSummarizersOperation = LogicalOperation.And;
using (StreamReader sr = File.OpenText(path))
{
while (sr.Peek() >= 0)
{
string line = sr.ReadLine().Trim();
if (line.StartsWith("#") || String.IsNullOrWhiteSpace(line))
{
continue;
}
if (line.StartsWith("QUALIFIERS"))
{
currentParsingMode = ParsingMode.Qualifier;
continue;
}
if (line.StartsWith("SUMMARIZERS"))
{
currentParsingMode = ParsingMode.Summarizer;
if (line.ToLowerInvariant().Contains("or"))
{
currentSummarizersOperation = LogicalOperation.Or;
}
continue;
}
if (line.StartsWith("QUANTIFIERS"))
{
currentParsingMode = ParsingMode.Quantifier;
continue;
}
// var parameters = line.Split(':');
var input = line.Split(new[] { ':' }, StringSplitOptions.None);
string label = input[0];
string membershipExpression = input[2];
var memInfo = membershipExpression.Split(new[] { '(', ')' });
string memType = memInfo[0];
var memParams = memInfo[1].Split(',');
IMembershipFunction membership;
if (memType.ToLowerInvariant().StartsWith("trap"))
{
membership = new TrapezoidalMembershipFunction(memParams[0], memParams[1], memParams[2], memParams[3]);
}
else
{
membership = new TriangularMembershipFunction(memParams[0], memParams[1], memParams[2]);
}
int xmin = 0;
int xmax = 100;
if (input.Length >= 5)
{
xmin = Int32.Parse(input[3]);
xmax = Int32.Parse(input[4]);
}
switch (currentParsingMode)
{
case ParsingMode.Quantifier:
bool isAbsolute = input[1].ToLowerInvariant().StartsWith("a");
quantifiers.Add(new Quantifier(
label,
membership,
isAbsolute ? QuantifierType.Absolute : QuantifierType.Relative,
0,
isAbsolute ? dataCount : 1));
break;
case ParsingMode.Qualifier:
qualifiers.Add(new Qualifier(
label,
input[1],
membership,
xmin, xmax));
break;
case ParsingMode.Summarizer:
summarizers.Add(new Summarizer(
label,
input[1],
membership,
xmin, xmax));
break;
}
}
}
return(quantifiers, qualifiers, summarizers, currentSummarizersOperation);
}
