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[project @ 2002-08-09 18:58:13 by jwe]
author jwe
date Fri, 09 Aug 2002 19:00:16 +0000
parents 2f341412622f
children 9f7ef92b50b0
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1 ## Copyright (C) 2000 Paul Kienzle
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2 ##
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3 ## This file is part of Octave.
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4 ##
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5 ## Octave is free software; you can redistribute it and/or modify it
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6 ## under the terms of the GNU General Public License as published by
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7 ## the Free Software Foundation; either version 2, or (at your option)
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8 ## any later version.
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9 ##
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10 ## Octave is distributed in the hope that it will be useful, but
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11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 ## General Public License for more details.
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14 ##
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15 ## You should have received a copy of the GNU General Public License
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16 ## along with Octave; see the file COPYING. If not, write to the Free
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17 ## Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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18 ## 02111-1307, USA.
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19
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {} repmat (@var{A}, @var{m}, @var{n})
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22 ## @deftypefnx {Function File} {} repmat (@var{A}, [@var{m} @var{n}])
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23 ## Form a block matrix of size @var{m} by @var{n}, with a copy of matrix
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24 ## @var{A} as each element. If @var{n} is not specified, form an
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25 ## @var{m} by @var{m} block matrix.
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26 ## @end deftypefn
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27
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28 ## Author: Paul Kienzle <pkienzle@kienzle.powernet.co.uk>
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29 ## Created: July 2000
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30
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31 function x = repmat (a, m, n)
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32
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33 if (nargin < 2 || nargin > 3)
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34 usage ("repmat (a, m, n)");
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35 endif
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36
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37 if (nargin == 2)
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38 if (isscalar (m))
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39 n = m;
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40 elseif (isvector (m) && length (m) == 2)
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41 n = m(2);
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42 m = m(1);
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43 else
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44 error ("repmat: only builds 2D matrices")
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45 endif
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46 endif
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47
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48 if (isstr (a))
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49 x = setstr (kron (ones (m, n), toascii (a)));
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50 else
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51 x = kron (ones (m, n), a);
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52 endif
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53
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54 endfunction