octave-nkf: scripts/statistics/distributions/chi2inv.m annotate

annotate scripts/statistics/distributions/chi2inv.m @ 20830:b65888ec820e draft default tip gccjit

dmalcom gcc jit import

author	Stefan Mahr <dac922@gmx.de>
date	Fri, 27 Feb 2015 16:59:36 +0100
parents	d9341b422488
children

rev	line source
14138 72c96de7a403 maint: update copyright notices for 2012 John W. Eaton <jwe@octave.org> parents: 13171 diff changeset	1 ## Copyright (C) 2012 Rik Wehbring
19898 4197fc428c7d maint: Update copyright notices for 2015. John W. Eaton <jwe@octave.org> parents: 17744 diff changeset	2 ## Copyright (C) 1995-2015 Kurt Hornik
5410 56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	3 ##
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	4 ## This file is part of Octave.
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	5 ##
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	6 ## Octave is free software; you can redistribute it and/or modify it
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	7 ## 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: 6859 diff changeset	8 ## the Free Software Foundation; either version 3 of the License, or (at
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6859 diff changeset	9 ## your option) any later version.
5410 56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	10 ##
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	11 ## Octave is distributed in the hope that it will be useful, but
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	12 ## WITHOUT ANY WARRANTY; without even the implied warranty of
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	14 ## General Public License for more details.
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	15 ##
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	16 ## 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: 6859 diff changeset	17 ## along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 6859 diff changeset	18 ## <http://www.gnu.org/licenses/>.
5410 56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	19
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	20 ## -- texinfo --
5411 bee21f388110 [project @ 2005-07-13 17:53:44 by jwe] jwe parents: 5410 diff changeset	21 ## @deftypefn {Function File} {} chi2inv (@var{x}, @var{n})
20384 d9341b422488 doc: Update more docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 20038 diff changeset	22 ## For each element of @var{x}, compute the quantile (the inverse of the CDF)
d9341b422488 doc: Update more docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 20038 diff changeset	23 ## at @var{x} of the chi-square distribution with @var{n} degrees of freedom.
5410 56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	24 ## @end deftypefn
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	25
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	26 ## Author: TT <Teresa.Twaroch@ci.tuwien.ac.at>
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	27 ## Description: Quantile function of the chi-square distribution
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	28
5411 bee21f388110 [project @ 2005-07-13 17:53:44 by jwe] jwe parents: 5410 diff changeset	29 function inv = chi2inv (x, n)
5410 56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	30
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	31 if (nargin != 2)
6046 34f96dd5441b [project @ 2006-10-10 16:10:25 by jwe] jwe parents: 5411 diff changeset	32 print_usage ();
5410 56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	33 endif
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	34
20038 9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions. Rik <rik@octave.org> parents: 19898 diff changeset	35 if (! isscalar (n))
5410 56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	36 [retval, x, n] = common_size (x, n);
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	37 if (retval > 0)
13171 19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	38 error ("chi2inv: X and N must be of common size or scalars");
5410 56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	39 endif
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	40 endif
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	41
13171 19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	42 if (iscomplex (x) \|\| iscomplex (n))
19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	43 error ("chi2inv: X and N must not be complex");
19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	44 endif
19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	45
19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	46 inv = gaminv (x, n/2, 2);
5410 56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	47
56e066f5efc1 [project @ 2005-07-13 17:43:35 by jwe] jwe parents: diff changeset	48 endfunction
13171 19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	49
19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	50
19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	51 %!shared x
19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	52 %! x = [-1 0 0.3934693402873666 1 2];
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	53 %!assert (chi2inv (x, 2ones (1,5)), [NaN 0 1 Inf NaN], 5eps)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	54 %!assert (chi2inv (x, 2), [NaN 0 1 Inf NaN], 5*eps)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	55 %!assert (chi2inv (x, 2[0 1 NaN 1 1]), [NaN 0 NaN Inf NaN], 5eps)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	56 %!assert (chi2inv ([x(1:2) NaN x(4:5)], 2), [NaN 0 NaN Inf NaN], 5*eps)
13171 19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	57
20038 9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions. Rik <rik@octave.org> parents: 19898 diff changeset	58 ## Test class of input preserved
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	59 %!assert (chi2inv ([x, NaN], 2), [NaN 0 1 Inf NaN NaN], 5*eps)
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	60 %!assert (chi2inv (single ([x, NaN]), 2), single ([NaN 0 1 Inf NaN NaN]), 5*eps ("single"))
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	61 %!assert (chi2inv ([x, NaN], single (2)), single ([NaN 0 1 Inf NaN NaN]), 5*eps ("single"))
13171 19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	62
20038 9fc020886ae9 maint: Clean up m-files to follow Octave coding conventions. Rik <rik@octave.org> parents: 19898 diff changeset	63 ## Test input validation
13171 19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	64 %!error chi2inv ()
19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	65 %!error chi2inv (1)
19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	66 %!error chi2inv (1,2,3)
14363 f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	67 %!error chi2inv (ones (3), ones (2))
f3d52523cde1 Use Octave coding conventions in all m-file %!test blocks Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	68 %!error chi2inv (ones (2), ones (3))
13171 19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	69 %!error chi2inv (i, 2)
19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	70 %!error chi2inv (2, i)
19b9f17d22af Overhaul of statistical distribution functions Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	71

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annotate scripts/statistics/distributions/chi2inv.m @ 20830:b65888ec820e draft default tip gccjit