Mercurial > octave-nkf
annotate scripts/general/postpad.m @ 11523:fd0a3ac60b0e
update copyright notices
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Fri, 14 Jan 2011 05:47:45 -0500 |
| parents | fe3c3dfc07eb |
| children | 6bac61388876 |
| rev | line source |
|---|---|
| 11523 | 1 ## Copyright (C) 1994-2011 John W. Eaton |
| 2313 | 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 | |
| 7016 | 7 ## the Free Software Foundation; either version 3 of the License, or (at |
| 8 ## your option) any later version. | |
| 2313 | 9 ## |
| 10 ## Octave is distributed in the hope that it will be useful, but | |
| 11 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 ## General Public License for more details. | |
| 14 ## | |
| 15 ## You should have received a copy of the GNU General Public License | |
| 7016 | 16 ## along with Octave; see the file COPYING. If not, see |
| 17 ## <http://www.gnu.org/licenses/>. | |
| 2303 | 18 |
| 3458 | 19 ## -*- texinfo -*- |
|
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Use common code block to find first non-singleton dimension.
Rik <octave@nomad.inbox5.com>
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20 ## @deftypefn {Function File} {} postpad (@var{x}, @var{l}, @var{c}) |
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postpad.m, prepad.m: doc fix
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21 ## @deftypefnx {Function File} {} postpad (@var{x}, @var{l}, @var{c}, @var{dim}) |
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Cross reference between postpad and resize
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22 ## @seealso{prepad, resize} |
| 3458 | 23 ## @end deftypefn |
| 3428 | 24 |
| 25 ## Author: Tony Richardson <arichard@stark.cc.oh.us> | |
| 26 ## Created: June 1994 | |
| 904 | 27 |
| 4862 | 28 function y = postpad (x, l, c, dim) |
| 29 | |
| 30 if (nargin < 2 || nargin > 4) | |
| 6046 | 31 print_usage (); |
| 4862 | 32 endif |
| 33 | |
| 34 if (nargin < 3 || isempty (c)) | |
| 35 c = 0; | |
| 36 else | |
| 37 if (! isscalar (c)) | |
| 38 error ("postpad: third argument must be empty or a scalar"); | |
| 39 endif | |
| 40 endif | |
| 561 | 41 |
| 4862 | 42 nd = ndims (x); |
| 43 sz = size (x); | |
| 44 if (nargin < 4) | |
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Use common code block to find first non-singleton dimension.
Rik <octave@nomad.inbox5.com>
parents:
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45 ## Find the first non-singleton dimension |
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Use common code block to find first non-singleton dimension.
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parents:
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46 dim = find (sz > 1, 1); |
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Use common code block to find first non-singleton dimension.
Rik <octave@nomad.inbox5.com>
parents:
10635
diff
changeset
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47 if (isempty (dim)) |
| 4862 | 48 dim = 1; |
| 49 endif | |
| 50 else | |
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style fix: break lines before && and ||, not after
John W. Eaton <jwe@octave.org>
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51 if (!(isscalar (dim) && dim == fix (dim)) |
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style fix: break lines before && and ||, not after
John W. Eaton <jwe@octave.org>
parents:
10690
diff
changeset
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52 || !(1 <= dim && dim <= nd)) |
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10690
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Use common code block to find first non-singleton dimension.
Rik <octave@nomad.inbox5.com>
parents:
10635
diff
changeset
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53 error ("postpad: DIM must be an integer and a valid dimension"); |
| 4862 | 54 endif |
| 561 | 55 endif |
| 56 | |
| 5459 | 57 if (! isscalar (l) || l < 0) |
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Print name of function in error() string messages.
Rik <octave@nomad.inbox5.com>
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58 error ("postpad: second argument must be a positive scaler"); |
| 561 | 59 endif |
| 60 | |
| 5459 | 61 if (dim > nd) |
| 62 sz(nd+1:dim) = 1; | |
| 63 endif | |
| 64 | |
| 4862 | 65 d = sz (dim); |
| 5459 | 66 |
| 4862 | 67 if (d >= l) |
| 68 idx = cell (); | |
| 69 for i = 1:nd | |
| 7208 | 70 idx{i} = 1:sz(i); |
| 4862 | 71 endfor |
| 7208 | 72 idx{dim} = 1:l; |
| 73 y = x(idx{:}); | |
| 561 | 74 else |
| 4862 | 75 sz (dim) = l - d; |
| 76 y = cat (dim, x, c * ones (sz)); | |
| 561 | 77 endif |
| 78 | |
| 79 endfunction |