From bug-request at octave dot org Wed Nov 24 21:20:06 2004
Subject: structure arrays
From: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
To: Paul Probert <pprobert at wisc dot edu>
Cc: bug-octave at bevo dot che dot wisc dot edu
Date: Wed, 24 Nov 2004 21:20:22 -0600

On 24-Nov-2004, Paul Probert <pprobert at wisc dot edu> wrote:

|    I'm having trouble trying to make structure arrays.
| Under Octave 2.1.50 on Windows I can do this:
| 
|  >> x(1).item='some string';
|  >> x(1).data=[1,2,3];
|  >> x(2).item='another string';
|  >> x(2).data=[5,6,7,8];
|  >> x(1).item
| ans = some string
|  >> x(2).data
| ans =
| 
|          5        6        7        8
| 
| 
| As we want.  This is also what Matlab 6 does.
| 
| 
|    But on octave 2.1.59 on Linux, I get this:
| 
| octave:6> x(1).item='some string';
| octave:7> x(1).data=[1,2,3];
| octave:8> x(2).item='another string';
| octave:9> x(2).data=[5,6,7,8];
| octave:10>
| octave:11> x.item
| ans =
| 
| (,
|    [1] = some string
|    [2] = another string
| ,)
| 
| octave:12> x(1).item
| error: string cannot be indexed with .
| octave:12> x(2).data
| error: matrix cannot be indexed with .
| 
|    I built octave on Linux (SuSE 8.2) using the enable-shared and 
| enable-dl options.

Try a newer version.  2.1.63 is the current "testing" AKA
"recommended" version, though there is one known problem with indexing
with the "end" keyword.  You can find a patch for that problem here:

  http://www.octave.org/mailing-lists/octave-maintainers/2004/877

There should be a 2.1.64 snapshot soon that will include this and a
couple of other minor fixes.

Thanks,

jwe



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