Changeset 5823 for trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression

Timestamp:

03/24/11 13:24:09 (14 years ago)

Author:

gkronber

Message:

#1418 fixed minor issues in symbolic data analysis classes.

Location:

trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/SingleObjective

Files:

• SymbolicRegressionSingleObjectiveOverfittingAnalyzer.cs (modified) (1 diff)
• SymbolicRegressionSingleObjectivePearsonRSquaredEvaluator.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/SingleObjective/SymbolicRegressionSingleObjectiveOverfittingAnalyzer.cs

@@ -85 +85 @@
                                     select EvaluatorParameter.ActualValue.Evaluate(childContext, tree, ProblemDataParameter.ActualValue, rows))
                                    .ToArray();
-      double r = alglib.spearmancorr2(trainingQuality, validationQuality);
+      double r = 0.0;
+      try {
+        r = alglib.spearmancorr2(trainingQuality, validationQuality);
+      }
+      catch (alglib.alglibexception) {
+        r = 0.0;
+      }
 
       TrainingValidationQualityCorrelationParameter.ActualValue = new DoubleValue(r);

trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic.Regression/3.4/SingleObjective/SymbolicRegressionSingleObjectivePearsonRSquaredEvaluator.cs

@@ -59 +59 @@
       }
       catch (ArgumentException) {
-        // if R² cannot be calculated because of NaN or ininity elements => return worst possible fitness valuse
+        // if R² cannot be calculated because of NaN or ininity elements => return worst possible fitness value
         return 0.0;
       }