Changeset 7832 for branches/GP-MoveOperators/HeuristicLab.Problems.DataAnalysis

Timestamp:

05/15/12 19:09:09 (13 years ago)

Author:

gkronber

Message:

#1847 added operator for replacing branches with semantically similar branches

File:

• branches/GP-MoveOperators/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Regression/RegressionEnsembleSolution.cs (modified) (1 diff)

branches/GP-MoveOperators/HeuristicLab.Problems.DataAnalysis/3.4/Implementation/Regression/RegressionEnsembleSolution.cs

@@ -218 +218 @@
 
     private double AggregateEstimatedValues(IEnumerable<double> estimatedValues) {
-      return estimatedValues.DefaultIfEmpty(double.NaN).Average();
+      // return trimean
+      var orderdValues = estimatedValues
+        .Where(x => !double.IsNaN(x))
+        .DefaultIfEmpty(0.0)
+        .OrderBy(x => x)
+        .ToArray();
+      return (orderdValues[(int)Math.Floor(orderdValues.Length * 0.25)] +
+              orderdValues[(int)Math.Floor(orderdValues.Length * 0.75)]) / 2.0;
     }
     #endregion