Mercurial > forge
comparison main/signal/boxcar.m @ 0:6b33357c7561 octave-forge
Initial revision
author | pkienzle |
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date | Wed, 10 Oct 2001 19:54:49 +0000 |
parents | |
children | 04d70f1275aa |
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-1:000000000000 | 0:6b33357c7561 |
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1 ## Copyright (C) 2000 Paul Kienzle | |
2 ## | |
3 ## This program is free software; you can redistribute it and/or modify | |
4 ## it under the terms of the GNU General Public License as published by | |
5 ## the Free Software Foundation; either version 2 of the License, or | |
6 ## (at your option) any later version. | |
7 ## | |
8 ## This program is distributed in the hope that it will be useful, | |
9 ## but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 ## GNU General Public License for more details. | |
12 ## | |
13 ## You should have received a copy of the GNU General Public License | |
14 ## along with this program; if not, write to the Free Software | |
15 ## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
16 | |
17 ## usage: w = boxcar (n) | |
18 ## | |
19 ## Returns the filter coefficients of a rectangular window of length n. | |
20 | |
21 function w = boxcar (n) | |
22 | |
23 if (nargin != 1) | |
24 usage ("w = boxcar(n)"); | |
25 endif | |
26 | |
27 if !is_scalar(n) || n != floor(n) || n <= 0 | |
28 error ("boxcar: n must be an integer > 0"); | |
29 endif | |
30 | |
31 w = ones(n, 1); | |
32 | |
33 endfunction |