octave: scripts/signal/stft.m annotate

annotate scripts/signal/stft.m @ 21633:dcf8922b724b

Deprecate printf, puts, and scanf. Make fputs a M-file. * libinterp/corefcn/file-io.cc: extracted printf, puts, and scanf to M-files. * scripts/deprecated/printf.m: new function, equivalent to version file-io.cc. * scripts/deprecated/puts.m: new function, equivalent to version file-io.cc. * scripts/deprecated/scanf.m: new function, equivalent to version file-io.cc. * scripts/deprecated/module.mk: added printf, puts, and scanf. * scripts/io/fputs.m: new function, equivalent to version file-io.cc. * scripts/io/module.mk: added fputs. * doc/interpreter/io.txi: adapted documentation to current implementation. * NEWS: announced changes. * doc/interpreter/basics.txi: replaced printf by fprintf. * doc/interpreter/stmt.txi: replaced printf by fprintf. * doc/interpreter/var.txi: replaced printf by fprintf. * doc/refcard/refcard.tex: removed printf and scanf. * examples/code/@FIRfilter/display.m: replaced printf by fprintf. * examples/code/@polynomial/display.m: replaced printf by fprintf. * scripts/@ftp/display.m: replaced printf by fprintf. * scripts/general/inputParser.m: replaced printf by fprintf. * scripts/general/methods.m: replaced printf by fprintf. * scripts/general/profexplore.m: replaced printf by fprintf. * scripts/general/profshow.m: replaced printf by fprintf. * scripts/help/help.m: replaced puts by fputs and printf by fprintf. * scripts/help/lookfor.m: replaced puts by fputs and printf by fprintf. * scripts/help/which.m: replaced printf by fprintf. * scripts/image/imformats.m: replaced printf by fprintf. * scripts/io/beep.m: replaced puts by fputs. * scripts/io/textread.m: replaced printf by fprintf. * scripts/java/javaclasspath.m: replaced printf by fprintf. * scripts/java/javamem.m: replaced printf by fprintf. * scripts/miscellaneous/dir.m: replaced printf by fprintf. * scripts/miscellaneous/dos.m: replaced printf by fprintf. * scripts/miscellaneous/fact.m: replaced printf by fprintf. * scripts/miscellaneous/info.m: replaced printf by fprintf. * scripts/miscellaneous/license.m: replaced printf by fprintf. * scripts/miscellaneous/ls.m: replaced puts by fputs. * scripts/miscellaneous/menu.m: replaced printf by fprintf. * scripts/miscellaneous/mkoctfile.m: replaced printf by fprintf. * scripts/miscellaneous/private/display_info_file.m: * scripts/miscellaneous/unix.m: replaced printf by fprintf. * scripts/miscellaneous/ver.m: replaced printf by fprintf. * scripts/miscellaneous/what.m: replaced printf by fprintf. * scripts/ode/ode23.m: replaced printf by fprintf. * scripts/ode/ode45.m: replaced printf by fprintf. * scripts/optimization/fminbnd.m: replaced printf by fprintf. * scripts/optimization/optimset.m: replaced puts by fputs and printf by fprintf. * scripts/optimization/sqp.m: replaced printf by fprintf. * scripts/pkg/pkg.m: replaced printf by fprintf. * scripts/pkg/private/describe.m: replaced printf by fprintf. * scripts/pkg/private/install.m: replaced printf by fprintf. * scripts/pkg/private/installed_packages.m: replaced printf by fprintf. * scripts/pkg/private/list_forge_packages.m: replaced puts by fputs and printf by fprintf. * scripts/pkg/private/rebuild.m: replaced printf by fprintf. * scripts/plot/util/__gnuplot_drawnow__.m: replaced puts by fputs and printf by fprintf. * scripts/signal/stft.m: replaced printf by fprintf. * scripts/sparse/bicg.m: replaced printf by fprintf. * scripts/sparse/bicgstab.m: replaced printf by fprintf. * scripts/sparse/cgs.m: replaced printf by fprintf. * scripts/sparse/pcg.m: replaced printf by fprintf. * scripts/sparse/pcr.m: replaced printf by fprintf. * scripts/sparse/qmr.m: replaced printf by fprintf. * scripts/statistics/models/logistic_regression.m: replaced printf by fprintf. * scripts/statistics/tests/anova.m: replaced printf by fprintf. * scripts/statistics/tests/bartlett_test.m: replaced printf by fprintf. * scripts/statistics/tests/chisquare_test_homogeneity.m: replaced printf by fprintf. * scripts/statistics/tests/chisquare_test_independence.m: replaced printf by fprintf. * scripts/statistics/tests/cor_test.m: replaced printf by fprintf. * scripts/statistics/tests/f_test_regression.m: replaced printf by fprintf. * scripts/statistics/tests/hotelling_test.m: replaced printf by fprintf. * scripts/statistics/tests/hotelling_test_2.m: replaced printf by fprintf. * scripts/statistics/tests/kolmogorov_smirnov_test.m: replaced printf by fprintf. * scripts/statistics/tests/kolmogorov_smirnov_test_2.m: replaced printf by fprintf. * scripts/statistics/tests/kruskal_wallis_test.m: replaced printf by fprintf. * scripts/statistics/tests/manova.m: replaced printf by fprintf. * scripts/statistics/tests/mcnemar_test.m: replaced printf by fprintf. * scripts/statistics/tests/prop_test_2.m: replaced printf by fprintf. * scripts/statistics/tests/run_test.m: replaced printf by fprintf. * scripts/statistics/tests/sign_test.m: replaced printf by fprintf. * scripts/statistics/tests/t_test.m: replaced printf by fprintf. * scripts/statistics/tests/t_test_2.m: replaced printf by fprintf. * scripts/statistics/tests/t_test_regression.m: replaced printf by fprintf. * scripts/statistics/tests/u_test.m: replaced printf by fprintf. * scripts/statistics/tests/var_test.m: replaced printf by fprintf. * scripts/statistics/tests/welch_test.m: replaced printf by fprintf. * scripts/statistics/tests/wilcoxon_test.m: replaced printf by fprintf. * scripts/statistics/tests/z_test.m: replaced printf by fprintf. * scripts/statistics/tests/z_test_2.m: replaced printf by fprintf. * scripts/strings/strtok.m: replaced printf by fprintf. * scripts/testfun/__run_test_suite__.m: replaced puts by fputs and printf by fprintf. * scripts/testfun/demo.m: replaced printf by fprintf. * scripts/testfun/example.m: replaced printf by fprintf. * scripts/testfun/private/compare_plot_demos.m: replaced printf by fprintf. * scripts/testfun/rundemos.m: replaced printf by fprintf. * scripts/testfun/runtests.m: replaced puts by fputs and printf by fprintf. * scripts/testfun/speed.m: replaced printf by fprintf. * scripts/testfun/test.m: replaced printf by fprintf. * scripts/time/calendar.m: replaced puts by fputs and printf by fprintf. * test/io.tst: replaced printf by fprintf.

author	Kai T. Ohlhus <k.ohlhus@gmail.com>
date	Wed, 20 Apr 2016 17:53:10 +0200
parents	516bb87ea72e
children	96518f623c91

rev	line source
19697 4197fc428c7d maint: Update copyright notices for 2015. John W. Eaton <jwe@octave.org> parents: 17754 diff changeset	1 ## Copyright (C) 1995-2015 Andreas Weingessel
3426 f8dde1807dee [project @ 2000-01-13 08:40:00 by jwe] jwe parents: 3191 diff changeset	2 ##
3922 38c61cbf086c [project @ 2002-05-01 06:48:35 by jwe] jwe parents: 3457 diff changeset	3 ## This file is part of Octave.
38c61cbf086c [project @ 2002-05-01 06:48:35 by jwe] jwe parents: 3457 diff changeset	4 ##
38c61cbf086c [project @ 2002-05-01 06:48:35 by jwe] jwe parents: 3457 diff changeset	5 ## Octave is free software; you can redistribute it and/or modify it
38c61cbf086c [project @ 2002-05-01 06:48:35 by jwe] jwe parents: 3457 diff changeset	6 ## under the terms of the GNU General Public License as published by
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6547 diff changeset	7 ## the Free Software Foundation; either version 3 of the License, or (at
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6547 diff changeset	8 ## your option) any later version.
3426 f8dde1807dee [project @ 2000-01-13 08:40:00 by jwe] jwe parents: 3191 diff changeset	9 ##
3922 38c61cbf086c [project @ 2002-05-01 06:48:35 by jwe] jwe parents: 3457 diff changeset	10 ## Octave is distributed in the hope that it will be useful, but
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
3426 f8dde1807dee [project @ 2000-01-13 08:40:00 by jwe] jwe parents: 3191 diff changeset	13 ## General Public License for more details.
f8dde1807dee [project @ 2000-01-13 08:40:00 by jwe] jwe parents: 3191 diff changeset	14 ##
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	15 ## You should have received a copy of the GNU General Public License
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6547 diff changeset	16 ## along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6547 diff changeset	17 ## <http://www.gnu.org/licenses/>.
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	18
3449 858695b3ed62 [project @ 2000-01-18 04:08:59 by jwe] jwe parents: 3426 diff changeset	19 ## -- texinfo --
20852 516bb87ea72e 2015 Code Sprint: remove class of function from docstring for all m-files. Rik <rik@octave.org> parents: 20231 diff changeset	20 ## @deftypefn {} {@var{y} =} stft (@var{x})
516bb87ea72e 2015 Code Sprint: remove class of function from docstring for all m-files. Rik <rik@octave.org> parents: 20231 diff changeset	21 ## @deftypefnx {} {@var{y} =} stft (@var{x}, @var{win_size})
516bb87ea72e 2015 Code Sprint: remove class of function from docstring for all m-files. Rik <rik@octave.org> parents: 20231 diff changeset	22 ## @deftypefnx {} {@var{y} =} stft (@var{x}, @var{win_size}, @var{inc})
516bb87ea72e 2015 Code Sprint: remove class of function from docstring for all m-files. Rik <rik@octave.org> parents: 20231 diff changeset	23 ## @deftypefnx {} {@var{y} =} stft (@var{x}, @var{win_size}, @var{inc}, @var{num_coef})
516bb87ea72e 2015 Code Sprint: remove class of function from docstring for all m-files. Rik <rik@octave.org> parents: 20231 diff changeset	24 ## @deftypefnx {} {@var{y} =} stft (@var{x}, @var{win_size}, @var{inc}, @var{num_coef}, @var{win_type})
516bb87ea72e 2015 Code Sprint: remove class of function from docstring for all m-files. Rik <rik@octave.org> parents: 20231 diff changeset	25 ## @deftypefnx {} {[@var{y}, @var{c}] =} stft (@dots{})
9072 bd8e388043c4 Cleanup documentation for signal.texi, image.texi, audio.texi Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	26 ## Compute the short-time Fourier transform of the vector @var{x} with
3449 858695b3ed62 [project @ 2000-01-18 04:08:59 by jwe] jwe parents: 3426 diff changeset	27 ## @var{num_coef} coefficients by applying a window of @var{win_size} data
858695b3ed62 [project @ 2000-01-18 04:08:59 by jwe] jwe parents: 3426 diff changeset	28 ## points and an increment of @var{inc} points.
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	29 ##
e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	30 ## Before computing the Fourier transform, one of the following windows
3449 858695b3ed62 [project @ 2000-01-18 04:08:59 by jwe] jwe parents: 3426 diff changeset	31 ## is applied:
858695b3ed62 [project @ 2000-01-18 04:08:59 by jwe] jwe parents: 3426 diff changeset	32 ##
858695b3ed62 [project @ 2000-01-18 04:08:59 by jwe] jwe parents: 3426 diff changeset	33 ## @table @asis
17718 6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	34 ## @item @qcode{"hanning"}
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10821 diff changeset	35 ## win_type = 1
10821 693e22af08ae Grammarcheck documentation of m-files Rik <octave@nomad.inbox5.com> parents: 10791 diff changeset	36 ##
17718 6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	37 ## @item @qcode{"hamming"}
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10821 diff changeset	38 ## win_type = 2
10821 693e22af08ae Grammarcheck documentation of m-files Rik <octave@nomad.inbox5.com> parents: 10791 diff changeset	39 ##
17718 6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	40 ## @item @qcode{"rectangle"}
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10821 diff changeset	41 ## win_type = 3
3449 858695b3ed62 [project @ 2000-01-18 04:08:59 by jwe] jwe parents: 3426 diff changeset	42 ## @end table
858695b3ed62 [project @ 2000-01-18 04:08:59 by jwe] jwe parents: 3426 diff changeset	43 ##
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10821 diff changeset	44 ## The window names can be passed as strings or by the @var{win_type} number.
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	45 ##
17754 dffb1e9a6d3b doc: Final spellcheck of documentation before 3.8 release. Rik <rik@octave.org> parents: 17744 diff changeset	46 ## The following defaults are used for unspecified arguments:
3449 858695b3ed62 [project @ 2000-01-18 04:08:59 by jwe] jwe parents: 3426 diff changeset	47 ## @var{win_size} = 80, @var{inc} = 24, @var{num_coef} = 64, and
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10821 diff changeset	48 ## @var{win_type} = 1.
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	49 ##
20165 f1d0f506ee78 doc: Update more docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19697 diff changeset	50 ## @code{@var{y} = stft (@var{x}, @dots{})} returns the absolute values of the
f1d0f506ee78 doc: Update more docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19697 diff changeset	51 ## Fourier coefficients according to the @var{num_coef} positive frequencies.
3449 858695b3ed62 [project @ 2000-01-18 04:08:59 by jwe] jwe parents: 3426 diff changeset	52 ##
20165 f1d0f506ee78 doc: Update more docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19697 diff changeset	53 ## @code{[@var{y}, @var{c}] = stft (@code{x}, @dots{})} returns the entire
f1d0f506ee78 doc: Update more docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19697 diff changeset	54 ## STFT-matrix @var{y} and a 3-element vector @var{c} containing the window
f1d0f506ee78 doc: Update more docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19697 diff changeset	55 ## size, increment, and window type, which is needed by the @code{synthesis}
f1d0f506ee78 doc: Update more docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19697 diff changeset	56 ## function.
17718 6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	57 ## @seealso{synthesis}
3449 858695b3ed62 [project @ 2000-01-18 04:08:59 by jwe] jwe parents: 3426 diff changeset	58 ## @end deftypefn
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	59
3457 e031284eea27 [project @ 2000-01-19 08:49:56 by jwe] jwe parents: 3449 diff changeset	60 ## Author: AW <Andreas.Weingessel@ci.tuwien.ac.at>
9072 bd8e388043c4 Cleanup documentation for signal.texi, image.texi, audio.texi Rik <rdrider0-list@yahoo.com> parents: 8920 diff changeset	61 ## Description: Short-Time Fourier Transform
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	62
17718 6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	63 function [y, c] = stft (x, win_size = 80, inc = 24, num_coef = 64, win_type = 1)
3426 f8dde1807dee [project @ 2000-01-13 08:40:00 by jwe] jwe parents: 3191 diff changeset	64
17718 6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	65 if (nargin < 1 \|\| nargin > 5)
6046 34f96dd5441b [project @ 2006-10-10 16:10:25 by jwe] jwe parents: 5443 diff changeset	66 print_usage ();
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	67 endif
e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	68
17718 6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	69 if (ischar (win_type))
6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	70 switch (tolower (win_type))
6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	71 case "hanning" win_type = 1;
6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	72 case "hamming" win_type = 2;
6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	73 case "rectangle" win_type = 3;
6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	74 otherwise
6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	75 error ("stft: unknown window type '%s'", win_type);
6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	76 endswitch
6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	77 endif
6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	78
8506 bc982528de11 comment style fixes John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	79 ## Check whether X is a vector.
17718 6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	80 if (! isvector (x))
6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	81 error ("stft: X must be a vector");
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	82 endif
17718 6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	83 x = x(:);
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	84
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10821 diff changeset	85 ncoef = 2 * num_coef;
c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10821 diff changeset	86 if (win_size > ncoef)
c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10821 diff changeset	87 win_size = ncoef;
21633 dcf8922b724b Deprecate printf, puts, and scanf. Make fputs a M-file. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: 20852 diff changeset	88 fprintf ("stft: window size adjusted to %f\n", win_size);
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	89 endif
17718 6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	90 num_win = fix ((rows (x) - win_size) / inc);
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	91
e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	92 ## compute the window coefficients
17718 6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	93 switch (win_type)
6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	94 case 1 win_coef = hanning (win_size);
6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	95 case 2 win_coef = hamming (win_size);
6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	96 case 3 win_coef = ones (win_size, 1);
6ed0a8532bcf Overhaul stft and synthesis functions Rik <rik@octave.org> parents: 17338 diff changeset	97 endswitch
3426 f8dde1807dee [project @ 2000-01-13 08:40:00 by jwe] jwe parents: 3191 diff changeset	98
8506 bc982528de11 comment style fixes John W. Eaton <jwe@octave.org> parents: 7017 diff changeset	99 ## Create a matrix Z whose columns contain the windowed time-slices.
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10821 diff changeset	100 z = zeros (ncoef, num_win + 1);
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	101 start = 1;
e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	102 for i = 0:num_win
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10821 diff changeset	103 z(1:win_size, i+1) = x(start:start+win_size-1) .* win_coef;
20231 83792dd9bcc1 Use in-place operators in m-files where possible. Rik <rik@octave.org> parents: 20165 diff changeset	104 start += inc;
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	105 endfor
e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	106
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10821 diff changeset	107 y = fft (z);
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	108
e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	109 if (nargout == 1)
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10821 diff changeset	110 y = abs (y(1:num_coef, :));
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	111 else
11469 c776f063fefe Overhaul m-script files to use common variable name between code and documentation. Rik <octave@nomad.inbox5.com> parents: 10821 diff changeset	112 c = [win_size, inc, win_type];
3191 e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	113 endif
e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	114
e4f4b2d26ee9 [project @ 1998-10-23 05:43:59 by jwe] jwe parents: diff changeset	115 endfunction
17338 1c89599167a6 maint: End m-files with 1 blank line. Rik <rik@octave.org> parents: 15467 diff changeset	116

Mercurial > octave

annotate scripts/signal/stft.m @ 21633:dcf8922b724b