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[project @ 2000-01-19 09:36:14 by jwe]
author jwe
date Wed, 19 Jan 2000 09:36:28 +0000
parents 5b77cf82393c
children 7923abdeb4e5
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1 ## Copyright (C) 1996, 1997 John W. Eaton
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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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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {@var{x} =} postpad (@var{x}, @var{l}, @var{c})
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22 ## See prepad.
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23 ## @end deftypefn
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5b77cf82393c [project @ 2000-01-14 02:54:53 by jwe]
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25 ## Author: Tony Richardson <arichard@stark.cc.oh.us>
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26 ## Created: June 1994
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28 function y = postpad (x, l, c)
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30 if (nargin == 2)
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31 c = 0;
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32 elseif (nargin < 2 || nargin > 3)
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33 usage ("postpad (x, l) or postpad (x, l, c)");
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34 endif
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35
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36 if (! is_vector (x))
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37 error ("first argument must be a vector");
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38 elseif (! is_scalar (l))
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39 error ("second argument must be a scaler");
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40 endif
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41
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42 if (l < 0)
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43 error ("second argument must be non-negative");
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44 endif
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45
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46 lx = length (x);
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48 if (lx >= l)
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49 y = x(1:l);
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50 else
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51 if (rows (x) > 1)
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52 tmp = c * ones (l-lx, 1);
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53 y = [x; tmp];
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54 else
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55 tmp = c * ones (1, l-lx);
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56 y = [x, tmp];
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57 endif
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58 endif
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59
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60 endfunction