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[Octave-bug-tracker] [bug #56342] function unifrnd(0, 0) returns "NaN",


From: Rik
Subject: [Octave-bug-tracker] [bug #56342] function unifrnd(0, 0) returns "NaN", but not 0.
Date: Sat, 18 May 2019 14:51:01 -0400 (EDT)
User-agent: Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko

Update of bug #56342 (project octave):

                Category:         Octave Function => Octave Forge Package   
              Item Group:        Incorrect Result => Matlab Compatibility   
                  Status:                    None => Confirmed              
                 Release:                   4.4.0 => other                  

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Follow-up Comment #1:

Changing the category to "Octave Forge Package".  A maintainer for the
statistics package will need to look at this.  If you can provide a patch that
would help speed things along.

Matlab isn't known for their statistics packages following academically
rigorous statistics.  For reference, I checked with the R language and they
also give '0' for a zero-length interval so returning the minimum limit when
the interval is of zero length is correct.

An additional three BIST tests for unifrnd.m should be


%!assert (unifrnd (0,0), 0)
%!assert (unifrnd (1,1), 1)
%!assert (unifrnd (1,0), NaN)




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Reply to this item at:

  <https://savannah.gnu.org/bugs/?56342>

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