Changeset 3923

Timestamp:

06/16/10 11:15:06 (14 years ago)

Author:

mkommend

Message:

fixed bug in RegressionSolutionAnalyzer - linear regression does not contain a parameter generations (ticket #938)

File:

• trunk/sources/HeuristicLab.Problems.DataAnalysis.Regression/3.3/Analyzers/RegressionSolutionAnalyzer.cs (modified) (3 diffs)

trunk/sources/HeuristicLab.Problems.DataAnalysis.Regression/3.3/Analyzers/RegressionSolutionAnalyzer.cs

@@ -75 +75 @@
     }
     public ILookupParameter<IntValue> GenerationsParameter {
-      get {
-        return (ILookupParameter<IntValue>)Parameters[GenerationsParameterName];
-      }
+      get { return (ILookupParameter<IntValue>)Parameters[GenerationsParameterName]; }
     }
     #endregion
@@ -151 +149 @@
         Results[BestSolutionTrainingRelativeError].Value = new DoubleValue(trainingRelError);
         Results[BestSolutionTestRelativeError].Value = new DoubleValue(testRelError);
-        Results[BestSolutionGeneration].Value = new IntValue(GenerationsParameter.ActualValue.Value);
+        if (GenerationsParameter.ActualValue != null) // this check is needed because linear regression solutions do not have a generations parameter
+          Results[BestSolutionGeneration].Value = new IntValue(GenerationsParameter.ActualValue.Value);
       } else {
         Results.Add(new Result(BestSolutionResultName, solution));
@@ -160 +159 @@
         Results.Add(new Result(BestSolutionTrainingRelativeError, new DoubleValue(trainingRelError)));
         Results.Add(new Result(BestSolutionTestRelativeError, new DoubleValue(testRelError)));
-        Results.Add(new Result(BestSolutionGeneration, new IntValue(GenerationsParameter.ActualValue.Value)));
+        if (GenerationsParameter.ActualValue != null)
+          Results.Add(new Result(BestSolutionGeneration, new IntValue(GenerationsParameter.ActualValue.Value)));
       }
       #endregion