Changeset 6338 for branches/histogram/HeuristicLab.Analysis/3.3/Tests

Timestamp:

05/30/11 17:21:30 (14 years ago)

Author:

abeham

Message:

#1539

• changed MDS optimization algorithm to Levenberg-Marquardt

File:

• branches/histogram/HeuristicLab.Analysis/3.3/Tests/MultidimensionalScalingTest.cs (modified) (2 diffs)

branches/histogram/HeuristicLab.Analysis/3.3/Tests/MultidimensionalScalingTest.cs

@@ -21 +21 @@
 
 using System;
+using System.Globalization;
 using HeuristicLab.Data;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
@@ -42 +43 @@
       distances3[0, 2] = distances3[2, 0] = 6.4;
       distances3[1, 2] = distances3[2, 1] = 5;
-      stress = MultidimensionalScaling.CalculateNormalizedStress(distances3,
-        MultidimensionalScaling.KruskalShepard(distances3));
+      DoubleMatrix coords3 = MultidimensionalScaling.KruskalShepard(distances3);
+      Console.WriteLine("Coordinates: ");
+      Console.WriteLine("A = ({0}, {1}), B = ({2}, {3}), C = ({4}, {5})", coords3[0, 0], coords3[0, 1], coords3[1, 0], coords3[1, 1], coords3[2, 0], coords3[2, 1]);
+      stress = MultidimensionalScaling.CalculateNormalizedStress(distances3, coords3);
+      Console.WriteLine("Stress = " + stress.ToString(CultureInfo.InvariantCulture.NumberFormat));
       Assert.IsTrue(stress < 0.1);
       DoubleMatrix distances4 = new DoubleMatrix(4, 4);