Changeset 14404 for branches/MOCMAEvolutionStrategy/HeuristicLab.Algorithms.MOCMAEvolutionStrategy/3.3/Utilities.cs

Timestamp:

11/21/16 15:52:53 (8 years ago)

Author:

bwerth

Message:

#2592 several fixes and cleanups to adapt a more HeuristicLab-Code-Style + renaming of folders and Plugin

Location:

branches

Files:

• . (modified) (1 prop)
• MOCMAEvolutionStrategy (moved) (moved from branches/HeuristicLab.Algorithms.CMAEvolutionStrategy)
• MOCMAEvolutionStrategy/HeuristicLab.Algorithms.MOCMAEvolutionStrategy (copied) (copied from branches/HeuristicLab.Algorithms.CMAEvolutionStrategy/sources)
• MOCMAEvolutionStrategy/HeuristicLab.Algorithms.MOCMAEvolutionStrategy/3.3 (copied) (copied from branches/HeuristicLab.Algorithms.CMAEvolutionStrategy/sources/MOCMAES)
• MOCMAEvolutionStrategy/HeuristicLab.Algorithms.MOCMAEvolutionStrategy/3.3/Utilities.cs (modified) (2 diffs)

branches/MOCMAEvolutionStrategy/HeuristicLab.Algorithms.MOCMAEvolutionStrategy/3.3/Utilities.cs

@@ -1 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using System.Collections.Generic;
 using HeuristicLab.Data;
 
 namespace HeuristicLab.Algorithms.MOCMAEvolutionStrategy {
-  internal class Utilities {
+  internal static class Utilities {
     internal static double[][] ToArray(DoubleMatrix m) {
-      int i = m.Rows - 1;
-      double[][] a = new double[i][];
+      var i = m.Rows - 1;
+      var a = new double[i][];
       for (i--; i >= 0; i--) {
-        int j = m.Columns;
+        var j = m.Columns;
         a[i] = new double[j];
         for (j--; j >= 0; j--) a[i][j] = m[i, j];
@@ -19 +15 @@
     }
 
+    public static int ArgMin<T>(IEnumerable<T> values, IComparer<T> comparer) {
+      var mindex = 0;
+      var min = default(T);
+      var i = 0;
+      foreach (var v in values) {
+        if (mindex < 0 || comparer.Compare(v, min) < 0) {
+          min = v;
+          mindex = i;
+        }
+        i++;
+      }
+      return mindex;
+
+    }
+    public static int ArgMax<T>(IEnumerable<T> values, IComparer<T> comparer) {
+      var mindex = 0;
+      var min = default(T);
+      var i = 0;
+      foreach (var v in values) {
+        if (mindex < 0 || comparer.Compare(v, min) > 0) {
+          min = v;
+          mindex = i;
+        }
+        i++;
+      }
+      return mindex;
+    }
+    private class DoubleComparer : IComparer<double> {
+      public int Compare(double x, double y) {
+        return x.CompareTo(y);
+      }
+    }
+    public static int ArgMax(this IEnumerable<double> values) {
+      return ArgMax(values, new DoubleComparer());
+    }
+    public static int ArgMin(this IEnumerable<double> values) {
+      return ArgMin(values, new DoubleComparer());
+    }
   }
 }