C# Cloner.GetClone方法代码示例

    public override void CalculateImpactAndReplacementValues(ISymbolicDataAnalysisModel model, ISymbolicExpressionTreeNode node,
      IDataAnalysisProblemData problemData, IEnumerable<int> rows, out double impactValue, out double replacementValue, out double newQualityForImpactsCalculation,
      double qualityForImpactsCalculation = Double.NaN) {
      var classificationModel = (ISymbolicClassificationModel)model;
      var classificationProblemData = (IClassificationProblemData)problemData;

      if (double.IsNaN(qualityForImpactsCalculation))
        qualityForImpactsCalculation = CalculateQualityForImpacts(classificationModel, classificationProblemData, rows);

      replacementValue = CalculateReplacementValue(classificationModel, node, classificationProblemData, rows);
      var constantNode = new ConstantTreeNode(new Constant()) { Value = replacementValue };

      var cloner = new Cloner();
      var tempModel = cloner.Clone(classificationModel);
      var tempModelNode = (ISymbolicExpressionTreeNode)cloner.GetClone(node);

      var tempModelParentNode = tempModelNode.Parent;
      int i = tempModelParentNode.IndexOfSubtree(tempModelNode);
      tempModelParentNode.RemoveSubtree(i);
      tempModelParentNode.InsertSubtree(i, constantNode);

      OnlineCalculatorError errorState;
      var dataset = classificationProblemData.Dataset;
      var targetClassValues = dataset.GetDoubleValues(classificationProblemData.TargetVariable, rows);
      var estimatedClassValues = tempModel.GetEstimatedClassValues(dataset, rows);
      newQualityForImpactsCalculation = OnlineAccuracyCalculator.Calculate(targetClassValues, estimatedClassValues, out errorState);
      if (errorState != OnlineCalculatorError.None) newQualityForImpactsCalculation = 0.0;

      impactValue = qualityForImpactsCalculation - newQualityForImpactsCalculation;
    }