Changeset 12390 for branches/HeuristicLab.Problems.GrammaticalOptimization-gkr/HeuristicLab.Distributions/GaussianModel.cs

Timestamp:

05/12/15 11:03:08 (9 years ago)

Author:

gkronber

Message:

#2283: fixed a potential exception and reduced iterations for unit-tests

File:

• branches/HeuristicLab.Problems.GrammaticalOptimization-gkr/HeuristicLab.Distributions/GaussianModel.cs (modified) (1 diff)

branches/HeuristicLab.Problems.GrammaticalOptimization-gkr/HeuristicLab.Distributions/GaussianModel.cs

@@ -87 +87 @@
       // p(µ|D) = T2αn (µ| µn, βn/(αnκn)) 
 
-      var t2alpha = alglib.invstudenttdistribution((int)(2 * posteriorAlpha), random.NextDouble());
+      var t2alpha = alglib.invstudenttdistribution((int)(2 * posteriorAlpha), Math.Max(random.NextDouble(), 0.00001));
 
       var theta = t2alpha * posteriorBeta / (posteriorAlpha * posteriorK) + posteriorMean;