octave-nkf: scripts/general/repmat.m annotate

annotate scripts/general/repmat.m @ 14138:72c96de7a403 stable

maint: update copyright notices for 2012

author	John W. Eaton <jwe@octave.org>
date	Mon, 02 Jan 2012 14:25:41 -0500
parents	4d777e05d47c
children	a52925666288

rev	line source
14138 72c96de7a403 maint: update copyright notices for 2012 John W. Eaton <jwe@octave.org> parents: 12639 diff changeset	1 ## Copyright (C) 2000-2012 Paul Kienzle
8390 49901b624316 optimize repmat for scalar & matrix case Jaroslav Hajek <highegg@gmail.com> parents: 7017 diff changeset	2 ## Copyright (C) 2008 Jaroslav Hajek
3914 9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	3 ##
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	4 ## This file is part of Octave.
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	5 ##
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	6 ## Octave is free software; you can redistribute it and/or modify it
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	7 ## under the terms of the GNU General Public License as published by
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6987 diff changeset	8 ## the Free Software Foundation; either version 3 of the License, or (at
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6987 diff changeset	9 ## your option) any later version.
3914 9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	10 ##
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	11 ## Octave is distributed in the hope that it will be useful, but
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	12 ## WITHOUT ANY WARRANTY; without even the implied warranty of
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	14 ## General Public License for more details.
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	15 ##
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	16 ## You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6987 diff changeset	17 ## along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6987 diff changeset	18 ## <http://www.gnu.org/licenses/>.
3914 9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	19
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	20 ## -- texinfo --
12639 4d777e05d47c doc: Review and update documentation for "Matrix Manipulation" chapter. Rik <octave@nomad.inbox5.com> parents: 11587 diff changeset	21 ## @deftypefn {Function File} {} repmat (@var{A}, @var{m})
4d777e05d47c doc: Review and update documentation for "Matrix Manipulation" chapter. Rik <octave@nomad.inbox5.com> parents: 11587 diff changeset	22 ## @deftypefnx {Function File} {} repmat (@var{A}, @var{m}, @var{n})
4d777e05d47c doc: Review and update documentation for "Matrix Manipulation" chapter. Rik <octave@nomad.inbox5.com> parents: 11587 diff changeset	23 ## @deftypefnx {Function File} {} repmat (@var{A}, @var{m}, @var{n}, @var{p}, @dots{})
3914 9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	24 ## @deftypefnx {Function File} {} repmat (@var{A}, [@var{m} @var{n}])
9041 853f96e8008f Cleanup documentation file matrix.texi Rik <rdrider0-list@yahoo.com> parents: 8970 diff changeset	25 ## @deftypefnx {Function File} {} repmat (@var{A}, [@var{m} @var{n} @var{p} @dots{}])
3914 9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	26 ## Form a block matrix of size @var{m} by @var{n}, with a copy of matrix
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	27 ## @var{A} as each element. If @var{n} is not specified, form an
3914 9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	28 ## @var{m} by @var{m} block matrix.
10801 a40e32927b3a Improve documentation for new repelems function. Rik <octave@nomad.inbox5.com> parents: 10793 diff changeset	29 ## @seealso{repelems}
3914 9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	30 ## @end deftypefn
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	31
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	32 ## Author: Paul Kienzle <pkienzle@kienzle.powernet.co.uk>
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	33 ## Created: July 2000
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	34
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 11318 diff changeset	35 function x = repmat (A, m, n)
3915 2f341412622f [project @ 2002-04-30 02:41:04 by jwe] jwe parents: 3914 diff changeset	36
3914 9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	37 if (nargin < 2 \|\| nargin > 3)
6046 34f96dd5441b [project @ 2006-10-10 16:10:25 by jwe] jwe parents: 5443 diff changeset	38 print_usage ();
3914 9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	39 endif
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	40
4844 9f7ef92b50b0 [project @ 2004-04-02 17:26:53 by jwe] jwe parents: 4030 diff changeset	41 if (nargin == 3)
5195 5208182e2e62 [project @ 2005-03-08 19:04:12 by jwe] jwe parents: 4964 diff changeset	42 if (! (isscalar (m) && isscalar (n)))
11472 1740012184f9 Use uppercase for variable names in error() strings to match Info documentation. Only m-files done. Rik <octave@nomad.inbox5.com> parents: 11469 diff changeset	43 error ("repmat: with 3 arguments M and N must be scalar");
4844 9f7ef92b50b0 [project @ 2004-04-02 17:26:53 by jwe] jwe parents: 4030 diff changeset	44 endif
9f7ef92b50b0 [project @ 2004-04-02 17:26:53 by jwe] jwe parents: 4030 diff changeset	45 idx = [m, n];
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	46 else
4030 22bd65326ec1 [project @ 2002-08-09 18:58:13 by jwe] jwe parents: 3915 diff changeset	47 if (isscalar (m))
4844 9f7ef92b50b0 [project @ 2004-04-02 17:26:53 by jwe] jwe parents: 4030 diff changeset	48 idx = [m, m];
3914 9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	49 n = m;
4844 9f7ef92b50b0 [project @ 2004-04-02 17:26:53 by jwe] jwe parents: 4030 diff changeset	50 elseif (isvector (m) && length (m) > 1)
8390 49901b624316 optimize repmat for scalar & matrix case Jaroslav Hajek <highegg@gmail.com> parents: 7017 diff changeset	51 ## Ensure that we have a row vector
4844 9f7ef92b50b0 [project @ 2004-04-02 17:26:53 by jwe] jwe parents: 4030 diff changeset	52 idx = m(:).';
3914 9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	53 else
4844 9f7ef92b50b0 [project @ 2004-04-02 17:26:53 by jwe] jwe parents: 4030 diff changeset	54 error ("repmat: invalid dimensional argument");
3914 9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	55 endif
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	56 endif
11587 c792872f8942 all script files: untabify and strip trailing whitespace John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	57
8508 dee629f14bfa repmat.m: handle negative dimensions properly John W. Eaton <jwe@octave.org> parents: 8507 diff changeset	58 if (all (idx < 0))
dee629f14bfa repmat.m: handle negative dimensions properly John W. Eaton <jwe@octave.org> parents: 8507 diff changeset	59 error ("repmat: invalid dimensions");
dee629f14bfa repmat.m: handle negative dimensions properly John W. Eaton <jwe@octave.org> parents: 8507 diff changeset	60 else
dee629f14bfa repmat.m: handle negative dimensions properly John W. Eaton <jwe@octave.org> parents: 8507 diff changeset	61 idx = max (idx, 0);
dee629f14bfa repmat.m: handle negative dimensions properly John W. Eaton <jwe@octave.org> parents: 8507 diff changeset	62 endif
3914 9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	63
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 11318 diff changeset	64 if (numel (A) == 1)
8390 49901b624316 optimize repmat for scalar & matrix case Jaroslav Hajek <highegg@gmail.com> parents: 7017 diff changeset	65 ## optimize the scalar fill case.
11318 d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	66 if (any (idx == 0))
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 11318 diff changeset	67 x = resize (A, idx);
11318 d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	68 else
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 11318 diff changeset	69 x(1:prod (idx)) = A;
11318 d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	70 x = reshape (x, idx);
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	71 endif
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 11318 diff changeset	72 elseif (ndims (A) == 2 && length (idx) < 3)
c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 11318 diff changeset	73 if (issparse (A))
c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 11318 diff changeset	74 x = kron (ones (idx), A);
4844 9f7ef92b50b0 [project @ 2004-04-02 17:26:53 by jwe] jwe parents: 4030 diff changeset	75 else
8390 49901b624316 optimize repmat for scalar & matrix case Jaroslav Hajek <highegg@gmail.com> parents: 7017 diff changeset	76 ## indexing is now faster, so we use it rather than kron.
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 11318 diff changeset	77 m = rows (A); n = columns (A);
8390 49901b624316 optimize repmat for scalar & matrix case Jaroslav Hajek <highegg@gmail.com> parents: 7017 diff changeset	78 p = idx(1); q = idx(2);
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 11318 diff changeset	79 x = reshape (A, m, 1, n, 1);
8390 49901b624316 optimize repmat for scalar & matrix case Jaroslav Hajek <highegg@gmail.com> parents: 7017 diff changeset	80 x = x(:, ones (1, p), :, ones (1, q));
49901b624316 optimize repmat for scalar & matrix case Jaroslav Hajek <highegg@gmail.com> parents: 7017 diff changeset	81 x = reshape (x, mp, nq);
4844 9f7ef92b50b0 [project @ 2004-04-02 17:26:53 by jwe] jwe parents: 4030 diff changeset	82 endif
3914 9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	83 else
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 11318 diff changeset	84 aidx = size (A);
8970 b37a6c27c23f simplify repmat Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	85 ## ensure matching size
b37a6c27c23f simplify repmat Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	86 idx(end+1:length (aidx)) = 1;
b37a6c27c23f simplify repmat Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	87 aidx(end+1:length (idx)) = 1;
b37a6c27c23f simplify repmat Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	88 ## create subscript array
b37a6c27c23f simplify repmat Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	89 cidx = cell (2, length (aidx));
8507 cadc73247d65 style fixes John W. Eaton <jwe@octave.org> parents: 8390 diff changeset	90 for i = 1:length (aidx)
8970 b37a6c27c23f simplify repmat Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	91 cidx{1,i} = ':';
b37a6c27c23f simplify repmat Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	92 cidx{2,i} = ones (1, idx (i));
4844 9f7ef92b50b0 [project @ 2004-04-02 17:26:53 by jwe] jwe parents: 4030 diff changeset	93 endfor
8970 b37a6c27c23f simplify repmat Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	94 aaidx = aidx;
b37a6c27c23f simplify repmat Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	95 # add singleton dims
b37a6c27c23f simplify repmat Jaroslav Hajek <highegg@gmail.com> parents: 8920 diff changeset	96 aaidx(2,:) = 1;
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 11318 diff changeset	97 A = reshape (A, aaidx(:));
c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 11318 diff changeset	98 x = reshape (A (cidx{:}), idx .* aidx);
3914 9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	99 endif
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	100
9eb96199e0f1 [project @ 2002-04-30 02:40:04 by jwe] jwe parents: diff changeset	101 endfunction
6987 deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	102
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	103 # Test various methods of providing size parameters
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	104 %!shared x
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	105 %! x = [1 2;3 4];
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	106 %!assert(repmat(x, [1 1]), repmat(x, 1));
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	107 %!assert(repmat(x, [3 3]), repmat(x, 3));
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	108 %!assert(repmat(x, [1 1]), repmat(x, 1, 1));
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	109 %!assert(repmat(x, [1 3]), repmat(x, 1, 3));
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	110 %!assert(repmat(x, [3 1]), repmat(x, 3, 1));
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	111 %!assert(repmat(x, [3 3]), repmat(x, 3, 3));
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	112
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	113 # Tests for numel==1 case:
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	114 %!shared x, r
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	115 %! x = [ 65 ];
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	116 %! r = kron(ones(2,2), x);
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	117 %!assert(r, repmat(x, [2 2]));
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	118 %!assert(char(r), repmat(char(x), [2 2]));
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	119 %!assert(int8(r), repmat(int8(x), [2 2]));
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	120
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	121 # Tests for ndims==2 case:
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	122 %!shared x, r
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	123 %! x = [ 65 66 67 ];
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	124 %! r = kron(ones(2,2), x);
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	125 %!assert(r, repmat(x, [2 2]));
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	126 %!assert(char(r), repmat(char(x), [2 2]));
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	127 %!assert(int8(r), repmat(int8(x), [2 2]));
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	128
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	129 # Tests for dim>2 case:
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	130 %!shared x, r
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	131 %! x = [ 65 66 67 ];
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	132 %! r = kron(ones(2,2), x);
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	133 %! r(:,:,2) = r(:,:,1);
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	134 %!assert(r, repmat(x, [2 2 2]));
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	135 %!assert(char(r), repmat(char(x), [2 2 2]));
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	136 %!assert(int8(r), repmat(int8(x), [2 2 2]));
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	137
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	138 # Test that sparsity is kept
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	139 %!assert(sparse(4,4), repmat(sparse(2,2),[2 2]));
deb175b6e4a1 [project @ 2007-10-09 18:39:15 by jwe] jwe parents: 6046 diff changeset	140
8508 dee629f14bfa repmat.m: handle negative dimensions properly John W. Eaton <jwe@octave.org> parents: 8507 diff changeset	141
dee629f14bfa repmat.m: handle negative dimensions properly John W. Eaton <jwe@octave.org> parents: 8507 diff changeset	142 %!assert (size (repmat (".", -1, 1)), [0, 1]);
dee629f14bfa repmat.m: handle negative dimensions properly John W. Eaton <jwe@octave.org> parents: 8507 diff changeset	143 %!assert (size (repmat (".", 1, -1)), [1, 0]);
dee629f14bfa repmat.m: handle negative dimensions properly John W. Eaton <jwe@octave.org> parents: 8507 diff changeset	144 %!error (size (repmat (".", -1, -1)));
11318 d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	145
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	146 %!assert (size (repmat (1, [1, 0])), [1, 0]);
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	147 %!assert (size (repmat (1, [5, 0])), [5, 0]);
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	148 %!assert (size (repmat (1, [0, 1])), [0, 1]);
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	149 %!assert (size (repmat (1, [0, 5])), [0, 5]);
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	150
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	151 %!shared x
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	152 %! x = struct ("a", [], "b", []);
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	153 %!assert (size (repmat (x, [1, 0])), [1, 0]);
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	154 %!assert (size (repmat (x, [5, 0])), [5, 0]);
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	155 %!assert (size (repmat (x, [0, 1])), [0, 1]);
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	156 %!assert (size (repmat (x, [0, 5])), [0, 5]);
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	157
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	158 %!assert (size (repmat ({1}, [1, 0])), [1, 0]);
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	159 %!assert (size (repmat ({1}, [5, 0])), [5, 0]);
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	160 %!assert (size (repmat ({1}, [0, 1])), [0, 1]);
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	161 %!assert (size (repmat ({1}, [0, 5])), [0, 5]);
d7ea780b036f repmat: handle special case of replicating scalar using index vector containing zeros John W. Eaton <jwe@octave.org> parents: 10801 diff changeset	162

Mercurial > hg > octave-nkf

annotate scripts/general/repmat.m @ 14138:72c96de7a403 stable