Mercurial > hg > octave-lyh
annotate scripts/signal/bartlett.m @ 12594:a3a7da1489b2 stable
Modify func.txi discussion of output arguments to include discussion of isargout.
| author | Rik <octave@nomad.inbox5.com> |
|---|---|
| date | Mon, 11 Apr 2011 19:03:32 -0700 |
| parents | fd0a3ac60b0e |
| children | b3a8b75dfec3 |
| rev | line source |
|---|---|
| 11523 | 1 ## Copyright (C) 1995-2011 Andreas Weingessel |
| 3426 | 2 ## |
| 3922 | 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. | |
| 3426 | 9 ## |
| 3922 | 10 ## Octave is distributed in the hope that it will be useful, but |
| 3191 | 11 ## WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 3426 | 13 ## General Public License for more details. |
| 14 ## | |
| 3191 | 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/>. | |
| 3191 | 18 |
| 3449 | 19 ## -*- texinfo -*- |
| 20 ## @deftypefn {Function File} {} bartlett (@var{m}) | |
| 21 ## Return the filter coefficients of a Bartlett (triangular) window of | |
| 22 ## length @var{m}. | |
| 3191 | 23 ## |
|
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Grammar check TexInfo in all .m files
Rik <rdrider0-list@yahoo.com>
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24 ## For a definition of the Bartlett window, see e.g., A. V. Oppenheim & |
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[docs] "Discrete-Time Signal Processing" => @cite{Discrete-Time Signal Processing}
Brian Gough <bjg@gnu.org>
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25 ## R. W. Schafer, @cite{Discrete-Time Signal Processing}. |
| 3449 | 26 ## @end deftypefn |
| 3191 | 27 |
| 3457 | 28 ## Author: AW <Andreas.Weingessel@ci.tuwien.ac.at> |
| 29 ## Description: Coefficients of the Bartlett (triangular) window | |
| 3191 | 30 |
| 31 function c = bartlett (m) | |
| 3426 | 32 |
| 3191 | 33 if (nargin != 1) |
| 6046 | 34 print_usage (); |
| 3191 | 35 endif |
| 3426 | 36 |
| 4030 | 37 if (! (isscalar (m) && (m == round (m)) && (m > 0))) |
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Use uppercase for variable names in error() strings to match Info documentation. Only m-files done.
Rik <octave@nomad.inbox5.com>
parents:
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38 error ("bartlett: M has to be an integer > 0"); |
| 3191 | 39 endif |
| 3426 | 40 |
| 3191 | 41 if (m == 1) |
| 42 c = 1; | |
| 43 else | |
| 44 m = m - 1; | |
| 45 n = fix (m / 2); | |
| 4172 | 46 c = [2*(0:n)/m, 2-2*(n+1:m)/m]'; |
| 3191 | 47 endif |
| 48 | |
| 49 endfunction |