Changeset 10017 for branches/StatisticalTesting/HeuristicLab.Analysis.Statistics/3.3/SampleSizeInfluenceView.cs

Timestamp:

10/02/13 13:48:55 (11 years ago)

Author:

ascheibe

Message:

#2031 improved sample size estimation and some minor improvements

File:

• branches/StatisticalTesting/HeuristicLab.Analysis.Statistics/3.3/SampleSizeInfluenceView.cs (modified) (2 diffs)

branches/StatisticalTesting/HeuristicLab.Analysis.Statistics/3.3/SampleSizeInfluenceView.cs

@@ -256 +256 @@
       if (yValue.Any(x => !x.HasValue)) return;
 
-      double y = SampleSizeDetermination.DetermineSampleSizeByEstimatingMean(yValue.Select(x => x.Value).ToArray());
+      double y = SampleSizeDetermination.DetermineSampleSizeByEstimatingMeanForLargeSampleSizes(yValue.Select(x => x.Value).ToArray());
       sampleSizeTextBox.Text = y.ToString();
     }
@@ -315 +315 @@
       }
       matrix.ColumnNames = columnNames;
-      matrix.RowNames = new string[] { "Count", "Minimum", "Maximum", "Average", "Median", "Standard Deviation", "Variance", "25th Percentile", "75th Percentile", "Lower Confidence", "Upper Confidence" };
+      matrix.RowNames = new string[] { "Count", "Minimum", "Maximum", "Average", "Median", "Standard Deviation", "Variance", "25th Percentile", "75th Percentile", "Lower Confidence Int.", "Upper Confidence Int." };
 
       for (int i = 0; i < seriesCache.Count; i++) {
         Series series = seriesCache.ElementAt(i).Value;
         double[] seriesValues = series.Points.Select(p => p.YValues[0]).OrderBy(d => d).ToArray();
-        Tuple<double, double> confIntervals = new Tuple<double, double>(double.NaN, double.NaN);
-        if (seriesValues.Count() > 1)
-          confIntervals = seriesValues.ConfidenceIntervals(0.95);
+        Tuple<double, double> confIntervals = seriesValues.ConfidenceIntervals(0.95);
         matrix[0, i] = seriesValues.Length;
         matrix[1, i] = seriesValues.Min();