Changeset 8863 for branches/ClassificationEnsembleVoting/HeuristicLab.Problems.DataAnalysis.Views/3.4/Classification/ClassificationEnsembleSolutionAccuracyToCoveredSamples.cs

Timestamp:

10/30/12 16:22:04 (11 years ago)

Author:

sforsten

Message:

#1776:

• merged r8810:8862 from trunk into branch
• fixed exception in ClassificationEnsembleSolutionAccuracyToCoveredSamples, if no estimated values are in a partition, so nothing can be shown

Location:

branches/ClassificationEnsembleVoting/HeuristicLab.Problems.DataAnalysis.Views

Files:

• . (modified) (1 prop)
• 3.4/Classification/ClassificationEnsembleSolutionAccuracyToCoveredSamples.cs (modified) (1 diff)

branches/ClassificationEnsembleVoting/HeuristicLab.Problems.DataAnalysis.Views/3.4/Classification/ClassificationEnsembleSolutionAccuracyToCoveredSamples.cs

@@ -118 +118 @@
         }
 
-        int row;
-        for (int i = 0; i < maxPoints; i++) {
-          double confidenceValue = (1.0 / (maxPoints - 1)) * i;
-          int notCovered = 0;
-
-          for (int j = 0; j < indizes.Length; j++) {
-            row = indizes[j];
-            if (confidences[j] >= confidenceValue) {
-              accuracyCalc.Add(target[row], estimatedClassValues[j]);
-            } else {
-              notCovered++;
+        if (!estimatedClassValues.All(x => Double.IsNaN(x))) {
+          int row;
+          for (int i = 0; i < maxPoints; i++) {
+            double confidenceValue = (1.0 / (maxPoints - 1)) * i;
+            int notCovered = 0;
+
+            for (int j = 0; j < indizes.Length; j++) {
+              row = indizes[j];
+              if (confidences[j] >= confidenceValue) {
+                accuracyCalc.Add(target[row], estimatedClassValues[j]);
+              } else {
+                notCovered++;
+              }
             }
+
+            accuracy[i + 1] = accuracyCalc.Accuracy;
+            if (indizes.Length > 0) {
+              covered[i] = 1.0 - (double)notCovered / (double)indizes.Length;
+            }
+            accuracyCalc.Reset();
           }
 
-          accuracy[i + 1] = accuracyCalc.Accuracy;
-          if (indizes.Length > 0) {
-            covered[i] = 1.0 - (double)notCovered / (double)indizes.Length;
-          }
-          accuracyCalc.Reset();
+          accuracy[0] = accuracy[1];
+          covered[maxPoints] = 0.0;
+
+          accuracy = accuracy.Reverse().ToArray();
+          covered = covered.Reverse().ToArray();
+
+          Series area = this.chart.Series.Add(AREA);
+          area.ChartType = SeriesChartType.Area;
+          area.Color = Color.LightBlue;
+          IEnumerable<IEnumerable<double>> areaPoints = CalculateAreaPoints(covered, accuracy);
+          area.Points.DataBindXY(areaPoints.ElementAt(0), areaPoints.ElementAt(1));
+
+          Series series = this.chart.Series.Add(ACCURACYCOVERED);
+          series.Color = Color.Red;
+          series.ChartType = SeriesChartType.FastPoint;
+          series.MarkerStyle = MarkerStyle.Diamond;
+          series.MarkerSize = 5;
+          series.Points.DataBindXY(covered, accuracy);
+
+          double auc = CalculateAreaUnderCurve(series);
+          area.LegendToolTip = "AUC: " + auc;
+
+          AUCLabel.Text = "AUC: " + auc;
+        } else {
+          AUCLabel.Text = "No values in this partition!";
         }
-
-        accuracy[0] = accuracy[1];
-        covered[maxPoints] = 0.0;
-
-        accuracy = accuracy.Reverse().ToArray();
-        covered = covered.Reverse().ToArray();
-
-        Series area = this.chart.Series.Add(AREA);
-        area.ChartType = SeriesChartType.Area;
-        area.Color = Color.LightBlue;
-        IEnumerable<IEnumerable<double>> areaPoints = CalculateAreaPoints(covered, accuracy);
-        area.Points.DataBindXY(areaPoints.ElementAt(0), areaPoints.ElementAt(1));
-
-        Series series = this.chart.Series.Add(ACCURACYCOVERED);
-        series.Color = Color.Red;
-        series.ChartType = SeriesChartType.FastPoint;
-        series.MarkerStyle = MarkerStyle.Diamond;
-        series.MarkerSize = 5;
-        series.Points.DataBindXY(covered, accuracy);
-
-        double auc = CalculateAreaUnderCurve(series);
-        area.LegendToolTip = "AUC: " + auc;
-
-        AUCLabel.Text = "AUC: " + auc;
       }
     }