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[Octave-bug-tracker] [bug #44918] fminunc ignores display option


From: anonymous
Subject: [Octave-bug-tracker] [bug #44918] fminunc ignores display option
Date: Fri, 24 Apr 2015 14:08:12 +0000
User-agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:37.0) Gecko/20100101 Firefox/37.0

URL:
  <http://savannah.gnu.org/bugs/?44918>

                 Summary: fminunc  ignores display option
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Fri 24 Apr 2015 02:08:11 PM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: José Ferraro
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.8.2
        Operating System: Microsoft Windows

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Details:

fminunc  function does not display anything even if you set display'to 'iter',
where one would hope to have for every iteration information about cost,
gradient direction, step size, etc.
A very simple case where nothing is displayed
 
options = optimset('GradObj', 'off', 'MaxIter', 10,'Display',"iter");
 fminunc(@(t)((t-5)*(t-3)*(t-4)*(t-6)), 0, options)
 
The problem was present on cygwin Octave 3.8.2.





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