From bug-octave-request at bevo dot che dot wisc dot edu Thu Jan 22 13:52:32 2004
Subject: Unidentified subject!
From: "John W. Eaton" <jwe at bevo dot che dot wisc dot edu>
To: dbateman at crm dot mot dot com (David Bateman)
Cc: bug-octave at bevo dot che dot wisc dot edu
Date: Thu, 22 Jan 2004 13:51:18 -0600

On 31-Dec-2003, David Bateman <dbateman at crm dot mot dot com> wrote:

| To: bug-octave at bevo dot che dot wisc dot edu
| Cc: 
| Subject: [50 character or so descriptive subject here (for reference)]
| 
| Bug report for Octave 2.1.52 configured for i686-pc-linux-gnu
| 
| Description:
| -----------
| 
|   Cell arrays with more than 2 dimensions are completely wrong.
|   
| Repeat-By:
| ---------
| 
|     b{1,1,1}=1;
|     b{1,1,2}=2;
|     b{1,2,1}=3;
|     b{1,2,2}=4;
|     b{2,1,1}=5;
|     b{2,1,2}=6;
|     b{2,2,1}=7;
|     b{2,2,2}=8;
| 
|     b{:,:,1}
|     ans =
| 
|     (,
|       [1] = 1
|       [2] = 5
|       [3] = [](0x0)
|       [4] = 7
|     ,)
| 	    
|     b{:,:,2}
|     ans =
| 
|     (,
|       [1] = [](0x0)
|       [2] = 6
|       [3] = [](0x0)
|       [4] = 8
|     ,)

This should be fixed in CVS now.  Here is what I see with the current
sources:

  octave:1> b{1,1,1}=1;
  octave:2> b{1,1,2}=2;
  octave:3> b{1,2,1}=3;
  octave:4> b{1,2,2}=4;
  octave:5> b{2,1,1}=5;
  octave:6> b{2,1,2}=6;
  octave:7> b{2,2,1}=7;
  octave:8> b{2,2,2}=8;
  octave:9> b{:,:,1}
  ans =

  (,
    [1] = 1
    [2] = 5
    [3] = 3
    [4] = 7
  ,)

  octave:10> b{:,:,2}
  ans =

  (,
    [1] = 2
    [2] = 6
    [3] = 4
    [4] = 8
  ,)


| The indexing of b{:,:,1} should be a 2x2 cell array, not a 1x4 cell array.

No, it should be a comma-separated list.  If you want a cell array,
you need to use () for indexing.  I think this is consistent with the
way Matlab works.

Thanks,

jwe



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