From bug-request at octave dot org Wed Nov 24 21:17:03 2004
Subject: structure arrays
From: Paul Probert <pprobert at wisc dot edu>
To: bug-octave at bevo dot che dot wisc dot edu
Date: Wed, 24 Nov 2004 19:57:30 -0600

Folks:
   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.

Thanks in advance. I love Octave, btw. Having DASPK in Octave
saved my butt a few weeks ago. Thanks for that, too.

Paul Probert
University of Wisconsin
Electrical Engineering Dept.



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