|
1887
|
1 # Copyright (C) 1996 John W. Eaton |
|
245
|
2 # |
|
|
3 # This file is part of Octave. |
|
|
4 # |
|
|
5 # Octave is free software; you can redistribute it and/or modify it |
|
|
6 # under the terms of the GNU General Public License as published by the |
|
|
7 # Free Software Foundation; either version 2, or (at your option) any |
|
|
8 # later version. |
|
|
9 # |
|
|
10 # Octave is distributed in the hope that it will be useful, but WITHOUT |
|
|
11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
|
12 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
|
13 # for more details. |
|
|
14 # |
|
|
15 # You should have received a copy of the GNU General Public License |
|
|
16 # along with Octave; see the file COPYING. If not, write to the Free |
|
1315
|
17 # Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
|
245
|
18 |
|
4
|
19 function retval = reshape (a, m, n) |
|
|
20 |
|
|
21 # usage: reshape (a, m, n) |
|
|
22 # |
|
|
23 # Form an m x n matrix from the elements of a (taken in Fortran's |
|
|
24 # column major ordering). |
|
|
25 # |
|
|
26 # See also: `:', do_fortran_indexing |
|
|
27 |
|
|
28 if (nargin != 3) |
|
904
|
29 usage ("reshape (a, m, n)"); |
|
4
|
30 else |
|
|
31 [nr, nc] = size (a); |
|
|
32 if (nr * nc == m * n) |
|
|
33 tmp = do_fortran_indexing; |
|
917
|
34 unwind_protect |
|
|
35 do_fortran_indexing = "true"; |
|
|
36 retval = zeros (m, n); |
|
|
37 retval (:) = a; |
|
|
38 unwind_protect_cleanup |
|
|
39 do_fortran_indexing = tmp; |
|
|
40 end_unwind_protect |
|
4
|
41 else |
|
|
42 error ("reshape: sizes must match"); |
|
|
43 endif |
|
|
44 endif |
|
|
45 |
|
|
46 endfunction |
