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Timestamp:
09/13/11 17:01:47 (13 years ago)
Author:
gkronber
Message:

#1640 fixed a problem with empty trainingindizes when using cross-validation

File:
1 edited

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

    r6740 r6754  
    7474
    7575    private void UpdateEstimationLimits() {
    76       if (ProblemData.TrainingPartition.Start < ProblemData.TrainingPartition.End) {
     76      if (ProblemData.TrainingIndizes.Any()) {
    7777        var targetValues = ProblemData.Dataset.GetDoubleValues(ProblemData.TargetVariable, ProblemData.TrainingIndizes).ToList();
    7878        var mean = targetValues.Average();
     
    8080        EstimationLimits.Upper = mean + PunishmentFactor * range;
    8181        EstimationLimits.Lower = mean - PunishmentFactor * range;
     82      } else {
     83        EstimationLimits.Upper = double.MaxValue;
     84        EstimationLimits.Lower = double.MinValue;
    8285      }
    8386    }
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