home *** CD-ROM | disk | FTP | other *** search
- # Copyright (C) 1993, 1994, 1995 John W. Eaton
- #
- # This file is part of Octave.
- #
- # Octave is free software; you can redistribute it and/or modify it
- # under the terms of the GNU General Public License as published by the
- # Free Software Foundation; either version 2, or (at your option) any
- # later version.
- #
- # Octave is distributed in the hope that it will be useful, but WITHOUT
- # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- # for more details.
- #
- # You should have received a copy of the GNU General Public License
- # along with Octave; see the file COPYING. If not, write to the Free
- # Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- function retval = reshape (a, m, n)
-
- # usage: reshape (a, m, n)
- #
- # Form an m x n matrix from the elements of a (taken in Fortran's
- # column major ordering).
- #
- # See also: `:', do_fortran_indexing
-
- if (nargin != 3)
- usage ("reshape (a, m, n)");
- else
- [nr, nc] = size (a);
- if (nr * nc == m * n)
- tmp = do_fortran_indexing;
- unwind_protect
- do_fortran_indexing = "true";
- retval = zeros (m, n);
- retval (:) = a;
- unwind_protect_cleanup
- do_fortran_indexing = tmp;
- end_unwind_protect
- else
- error ("reshape: sizes must match");
- endif
- endif
-
- endfunction
-