Changeset 2136 for trunk/sources/HeuristicLab.GP.StructureIdentification.ConditionalEvaluation/3.3/ConditionalMeanAbsolutePercentageErrorEvaluator.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.ConditionalEvaluation/3.3/ConditionalMeanAbsolutePercentageErrorEvaluator.cs (modified) (1 diff)

trunk/sources/HeuristicLab.GP.StructureIdentification.ConditionalEvaluation/3.3/ConditionalMeanAbsolutePercentageErrorEvaluator.cs

@@ -45 +45 @@
 
     public override double Evaluate(double[,] values) {
-      double quality = SimpleMeanAbsolutePercentageErrorEvaluator.Calculate(values);
-      if (double.IsNaN(quality) || double.IsInfinity(quality))
-        quality = double.MaxValue;
-
-      return quality;
+      try { return SimpleMeanAbsolutePercentageErrorEvaluator.Calculate(values); }
+      catch (ArgumentException) {
+        return double.PositiveInfinity;
+      }
     }
   }