[Octave-bug-tracker] [bug #54278] gmdistribution.random error if NumVariables and NumComponents are different

[Richard Lane]

URL:
  <http://savannah.gnu.org/bugs/?54278>

                 Summary: gmdistribution.random error if NumVariables and
NumComponents are different
                 Project: GNU Octave
            Submitted by: richardlane
            Submitted on: Tue 10 Jul 2018 09:48:26 AM UTC
                Category: Libraries
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error
                  Status: None
             Assigned to: None
         Originator Name: Richard Lane
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.4.0
        Operating System: GNU/Linux

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Details:

There is a bug on line 233 of gmdistribution in statistics-1.4.0,
octave-4.4.0.

This causes gmdistribution.random to fail if obj.NumVariables ~=
obj.NumComponents.

Reproduce the error:


x = rand(100,2);
gmm = fitgmdist(x,5);
gmm.random(1)



Solution:
line 233: obj.NumVariables should be obj.NumComponents




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