Mercurial > octave
view scripts/statistics/tests/kolmogorov_smirnov_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.
* scripts/java/javamem.m: replaced printf by fprintf.
* scripts/miscellaneous/dir.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.
* scripts/miscellaneous/ver.m: replaced printf by fprintf.
* 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/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.
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* 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 | 6c2fd62db1f7 |
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{ks}] =} kolmogorov_smirnov_test (@var{x}, @var{dist}, @var{params}, @var{alt}) ## Perform a Kolmogorov-Smirnov test of the null hypothesis that the ## sample @var{x} comes from the (continuous) distribution @var{dist}. ## ## if F and G are the CDFs corresponding to the sample and dist, ## respectively, then the null is that F == G. ## ## The optional argument @var{params} contains a list of parameters of ## @var{dist}. For example, to test whether a sample @var{x} comes from ## a uniform distribution on [2,4], use ## ## @example ## kolmogorov_smirnov_test (x, "unif", 2, 4) ## @end example ## ## @noindent ## @var{dist} can be any string for which a function @var{distcdf} ## that calculates the CDF of distribution @var{dist} exists. ## ## 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 F != G@. In this case, the ## test statistic @var{ks} follows a two-sided Kolmogorov-Smirnov ## distribution. If @var{alt} is @qcode{">"}, the one-sided alternative F > ## G is considered. Similarly for @qcode{"<"}, the one-sided alternative F > ## G is considered. In this case, the test statistic @var{ks} has a ## one-sided Kolmogorov-Smirnov distribution. 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 is displayed. ## @end deftypefn ## Author: KH <Kurt.Hornik@wu-wien.ac.at> ## Description: One-sample Kolmogorov-Smirnov test function [pval, ks] = kolmogorov_smirnov_test (x, dist, varargin) if (nargin < 2) print_usage (); endif if (! isvector (x)) error ("kolmogorov_smirnov_test: X must be a vector"); endif n = length (x); s = sort (x); try f = str2func (sprintf ("%scdf", dist)); catch try f = str2func (sprintf ("%s_cdf", dist)); catch error ("kolmogorov_smirnov_test: no %scdf or %s_cdf function found", dist, dist); end_try_catch end_try_catch alt = "!="; args{1} = s; nvargs = numel (varargin); if (nvargs > 0) if (ischar (varargin{end})) alt = varargin{end}; args(2:nvargs) = varargin(1:end-1); else args(2:nvargs+1) = varargin; endif endif z = reshape (feval (f, args{:}), 1, n); if (strcmp (alt, "!=") || strcmp (alt, "<>")) ks = sqrt (n) * max (max ([abs(z - (0:(n-1))/n); abs(z - (1:n)/n)])); pval = 1 - kolmogorov_smirnov_cdf (ks); elseif (strcmp (alt, ">")) ks = sqrt (n) * max (max ([z - (0:(n-1))/n; z - (1:n)/n])); pval = exp (- 2 * ks^2); elseif (strcmp (alt, "<")) ks = - sqrt (n) * min (min ([z - (0:(n-1))/n; z - (1:n)/n])); pval = exp (- 2 * ks^2); else error ("kolmogorov_smirnov_test: alternative %s not recognized", alt); endif if (nargout == 0) fprintf ("pval: %g\n", pval); endif endfunction ## test for recognition of unifcdf function %!assert (kolmogorov_smirnov_test (0:100, "unif", 0, 100), 1.0, eps) ## test for recognition of logistic_cdf function %!assert (kolmogorov_smirnov_test (0:100, "logistic"), 0) ## test for F < G %!assert (kolmogorov_smirnov_test (50:100, "unif", 0, 50, "<")) %!error kolmogorov_smirnov_test (1) %!error <X must be a vector> kolmogorov_smirnov_test ({}, "unif", 2, 4) %!error <no not_a_distcdf or not_a_dist_cdf function found> %! kolmogorov_smirnov_test (1, "not_a_dist"); %!error <alternative foo not recognized> %! kolmogorov_smirnov_test (1, "unif", 2, 4, "foo");