fuzzy

Esiur.Analysis/Fuzzy/FuzzyExtensions.cs

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+using System;
+using System.Collections.Generic;
+using System.Runtime.CompilerServices;
+using System.Text;
+
+namespace Esiur.Analysis.Fuzzy
+{
+    public static class FuzzyExtensions
+    {
+
+        public static double Or(this double value, double orValue) => value > orValue ? value : orValue;
+        public static double And(this double value, double orValue) => value < orValue ? value : orValue;
+
+        public static double Is(this double value, INumericalSet<double> set) => set[value];
+
+        // Mamdani
+        public static ContinuousSet Then(this double value, ContinuousSet set) 
+            => new ContinuousSet(set.Function) { AlphaCut = value };// set.AlphaCut < value ? set.AlphaCut : value };
+
+        // TKS
+        public static double Then(this double value, double constant)
+            => value * constant;
+
+
+        public static INumericalSet<double> FuzzyUnion(this INumericalSet<double>[] sets)
+        {
+            return new OperationSet(Operation.Union, sets);
+        }
+
+        public static INumericalSet<double> FuzzyIntersection(this INumericalSet<double> sets)
+        {
+            return new OperationSet(Operation.Intersection, sets);
+
+        }
+
+        public static DiscreteSet ToDiscrete(this INumericalSet<double> set, double from, double to, double step)
+        {
+            var rt = new DiscreteSet();
+            for (var x = from; x <= to; x += step)
+                rt[x] = set[x];
+
+            return rt;
+        }
+    }
+}