Mercurial > octave
view scripts/statistics/tests/wilcoxon_test.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.
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* 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.
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* scripts/miscellaneous/what.m: replaced printf by fprintf.
* scripts/ode/ode23.m: replaced printf by fprintf.
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* 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.
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* 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.
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* scripts/sparse/bicgstab.m: replaced printf by fprintf.
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* 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 |
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## Copyright (C) 1995-2015 Kurt Hornik ## ## This file is part of Octave. ## ## Octave is free software; you can redistribute it and/or modify it ## under the terms of the GNU General Public License as published by ## the Free Software Foundation; either version 3 of the License, or (at ## your option) any later version. ## ## Octave is distributed in the hope that it will be useful, but ## WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ## General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with Octave; see the file COPYING. If not, see ## <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn {} {[@var{pval}, @var{z}] =} wilcoxon_test (@var{x}, @var{y}, @var{alt}) ## For two matched-pair sample vectors @var{x} and @var{y}, perform a ## Wilcoxon signed-rank test of the null hypothesis ## PROB (@var{x} > @var{y}) == 1/2. ## ## Under the null, the test statistic @var{z} approximately follows a ## standard normal distribution when @var{n} > 25. ## ## @strong{Caution:} This function assumes a normal distribution for @var{z} ## and thus is invalid for @var{n} @leq{} 25. ## ## With the optional argument string @var{alt}, the alternative of interest ## can be selected. If @var{alt} is @qcode{"!="} or @qcode{"<>"}, the null ## is tested against the two-sided alternative ## PROB (@var{x} > @var{y}) != 1/2. If alt is @qcode{">"}, the one-sided ## alternative PROB (@var{x} > @var{y}) > 1/2 is considered. Similarly for ## @qcode{"<"}, the one-sided alternative PROB (@var{x} > @var{y}) < 1/2 is ## considered. The default is the two-sided case. ## ## The p-value of the test is returned in @var{pval}. ## ## If no output argument is given, the p-value of the test is displayed. ## @end deftypefn ## Author: KH <Kurt.Hornik@wu-wien.ac.at> ## Description: Wilcoxon signed-rank test function [pval, z] = wilcoxon_test (x, y, alt) if (nargin < 2 || nargin > 3) print_usage (); endif if (! (isvector (x) && isvector (y) && (length (x) == length (y)))) error ("wilcoxon_test: X and Y must be vectors of the same length"); endif n = length (x); x = reshape (x, 1, n); y = reshape (y, 1, n); d = x - y; d = d(find (d != 0)); n = length (d); if (n > 25) r = ranks (abs (d)); z = sum (r(find (d > 0))); z = ((z - n * (n + 1) / 4) / sqrt (n * (n + 1) * (2 * n + 1) / 24)); else error ("wilcoxon_test: implementation requires more than 25 different pairs"); endif cdf = stdnormal_cdf (z); if (nargin == 2) alt = "!="; endif if (! ischar (alt)) error ("wilcoxon_test: ALT must be a string"); elseif (strcmp (alt, "!=") || strcmp (alt, "<>")) pval = 2 * min (cdf, 1 - cdf); elseif (strcmp (alt, ">")) pval = 1 - cdf; elseif (strcmp (alt, "<")) pval = cdf; else error ("wilcoxon_test: option %s not recognized", alt); endif if (nargout == 0) fprintf (" pval: %g\n", pval); endif endfunction