Changeset 6002 for trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4/kMeans

Timestamp:

04/11/11 18:41:03 (14 years ago)

Author:

gkronber

Message:

#790 Fixed minor issues in LDA, LR, SVC and SVR to make sure everything works correctly in presence of NaN and infinity values.

File:

• trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4/kMeans/KMeansClustering.cs (modified) (1 diff)

trunk/sources/HeuristicLab.Algorithms.DataAnalysis/3.4/kMeans/KMeansClustering.cs

@@ -92 +92 @@
       int[] xyc;
       double[,] inputMatrix = AlglibUtil.PrepareInputMatrix(dataset, allowedInputVariables, rows);
+      if (inputMatrix.Cast<double>().Any(x => double.IsNaN(x) || double.IsInfinity(x)))
+        throw new NotSupportedException("k-Means clustering does not support NaN or infinity values in the input dataset.");
+
       alglib.kmeansgenerate(inputMatrix, inputMatrix.GetLength(0), inputMatrix.GetLength(1), k, restarts + 1, out info, out centers, out xyc);
       if (info != 1) throw new ArgumentException("Error in calculation of k-Means clustering solution");