Changeset 2136 for trunk/sources/HeuristicLab.GP.StructureIdentification/3.3/Evaluators/VarianceAccountedForEvaluator.cs

Timestamp:

07/06/09 17:12:37 (15 years ago)

Author:

gkronber

Message:

Improved handling of exceptional cases in data-based modeling evaluators. #688 (SimpleEvaluators should handle exceptional cases more gracefully)

File:

• trunk/sources/HeuristicLab.GP.StructureIdentification/3.3/Evaluators/VarianceAccountedForEvaluator.cs (modified) (1 diff)

trunk/sources/HeuristicLab.GP.StructureIdentification/3.3/Evaluators/VarianceAccountedForEvaluator.cs

@@ -54 +54 @@
 
     public override double Evaluate(double[,] values) {
-      double quality = SimpleVarianceAccountedForEvaluator.Calculate(values);
-
-      if (double.IsNaN(quality) || double.IsInfinity(quality)) {
-        quality = double.MaxValue;
+      try { return SimpleVarianceAccountedForEvaluator.Calculate(values); }
+      catch (ArgumentException) {
+        return double.NegativeInfinity;
       }
-      return quality;
     }
   }