[Octave-bug-tracker] [bug #54279] gmdistribution.fit error when using optional arguments

[Richard Lane]

URL:
  <http://savannah.gnu.org/bugs/?54279>

                 Summary: gmdistribution.fit error when using optional
arguments
                 Project: GNU Octave
            Submitted by: richardlane
            Submitted on: Tue 10 Jul 2018 10:02:52 AM UTC
                Category: Libraries
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error
                  Status: None
             Assigned to: None
         Originator Name: 
        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 265 of gmdistribution.m in statistics-1.4.0,
octave-4.4.0. 

An error "Invalid call to fitgmdist" is produced when using optional arguments
to gmdistribution.fit that isn't produced when calling fitgmdist directly.

Reproduce the error:

x = rand(100,2);
gmm1 = fitgmdist(x,5,'Regularize',0.01); % no error
gmm2 = gmdistribution.fit(x,5,'Regularize',0.01) % error


The solution is to change line 265 from:

c = fitgmdist (X,k,varargin)

to:

c = fitgmdist (X,k,varargin{:})






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