[Octave-bug-tracker] [bug #66728] legend inconsistencies

[Muhali]

URL:
  <https://savannah.gnu.org/bugs/?66728>

                 Summary: legend inconsistencies
                   Group: GNU Octave
               Submitter: muhali
               Submitted: Tue 28 Jan 2025 09:54:01 AM PST
                Category: Plotting
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
         Originator Name:
        Originator Email:
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 9.3.0
        Operating System: GNU/Linux
           Fixed Release: None
         Planned Release: None


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Follow-up Comments:


-------------------------------------------------------
Date: Tue 28 Jan 2025 09:54:01 AM PST By: Muhali <muhali>
The following code reveals multiple issues with the legend command:

col = {"r" "g" "b"} ;
for j = 1 : 3
   if j < 2
      ax(j) = subplot(4, 1, [1 2]) ;
   else
      ax(j) = subplot(4, 1, 1+j) ;
   endif
   h(j) = plot(randn(1, 5), col{j}) ;
endfor
hl = legend(h, {"rrrrr" "ggggg" "bbbbb"}, "location", "eastoutside") ;

First, it is not clear why axes #2 and #3 are indented (and #1 is not). Then
the legend command as used here is motivated by the help text 'legend (HOBJS,
...)', which is meant for the current axis but is not mentioned. The text
should obviously be legend (HAX, HOBJ, ...) which works.
Interestingly, Matlab plots the legend to axis #1. And if one does legend
(ax(2), h(1:2), ...) Matlab plots to legends to and indents axis #2, while
octave indents again #2 and #3.








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