octave-nkf: libinterp/corefcn/gammainc.cc annotate

annotate libinterp/corefcn/gammainc.cc @ 20616:fd0efcdb3718

use new string_value method to handle value extraction errors * dirfns.cc, file-io.cc, gammainc.cc, help.cc, load-path.cc, octave-link.cc, qz.cc, regexp.cc, strfns.cc, syscalls.cc, time.cc, variables.cc: Use new string_value method.

author	John W. Eaton <jwe@octave.org>
date	Thu, 08 Oct 2015 19:00:51 -0400
parents	b10432a40432
children

rev	line source
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	1 /*
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	2
19731 4197fc428c7d maint: Update copyright notices for 2015. John W. Eaton <jwe@octave.org> parents: 19185 diff changeset	3 Copyright (C) 1997-2015 John W. Eaton
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	4
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	5 This file is part of Octave.
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	6
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	7 Octave is free software; you can redistribute it and/or modify it
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	8 under the terms of the GNU General Public License as published by the
7016 93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 5823 diff changeset	9 Free Software Foundation; either version 3 of the License, or (at your
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 5823 diff changeset	10 option) any later version.
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	11
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	12 Octave is distributed in the hope that it will be useful, but WITHOUT
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	15 for more details.
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	16
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	17 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: 5823 diff changeset	18 along with Octave; see the file COPYING. If not, see
93c65f2a5668 [project @ 2007-10-12 06:40:56 by jwe] jwe parents: 5823 diff changeset	19 <http://www.gnu.org/licenses/>.
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	20
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	21 */
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	22
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	23 #ifdef HAVE_CONFIG_H
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	24 #include <config.h>
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	25 #endif
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	26
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	27 #include "lo-specfun.h"
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	28
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14501 diff changeset	29 #include "defun.h"
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	30 #include "error.h"
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	31 #include "gripes.h"
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	32 #include "oct-obj.h"
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	33 #include "utils.h"
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	34
15039 e753177cde93 maint: Move non-dynamically linked functions from DLD-FUNCTIONS/ to corefcn/ directory Rik <rik@octave.org> parents: 14501 diff changeset	35 DEFUN (gammainc, args, ,
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	36 "-- texinfo --\n\
10840 89f4d7e294cc Grammarcheck .cc files Rik <octave@nomad.inbox5.com> parents: 10711 diff changeset	37 @deftypefn {Mapping Function} {} gammainc (@var{x}, @var{a})\n\
10698 fa00ccf7b1f9 Implementary complementary incomplete gamma function (bug #30088) David Bateman <dbateman@free.fr> parents: 10155 diff changeset	38 @deftypefnx {Mapping Function} {} gammainc (@var{x}, @var{a}, \"lower\")\n\
fa00ccf7b1f9 Implementary complementary incomplete gamma function (bug #30088) David Bateman <dbateman@free.fr> parents: 10155 diff changeset	39 @deftypefnx {Mapping Function} {} gammainc (@var{x}, @var{a}, \"upper\")\n\
20207 4f45eaf83908 doc: Update more docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19773 diff changeset	40 Compute the normalized incomplete gamma function.\n\
4f45eaf83908 doc: Update more docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19773 diff changeset	41 \n\
4f45eaf83908 doc: Update more docstrings to have one sentence summary as first line. Rik <rik@octave.org> parents: 19773 diff changeset	42 This is defined as\n\
3444 fa0d84558faa [project @ 2000-01-17 08:40:39 by jwe] jwe parents: 3254 diff changeset	43 @tex\n\
fa0d84558faa [project @ 2000-01-17 08:40:39 by jwe] jwe parents: 3254 diff changeset	44 $$\n\
11415 e7ed20f87e82 Add @tex blocks to gammainc and legendre docstrings. Michael Godfrey <godfrey@isl.stanford.edu> parents: 10840 diff changeset	45 \\gamma (x, a) = {1 \\over {\\Gamma (a)}}\\displaystyle{\\int_0^x t^{a-1} e^{-t} dt}\n\
3444 fa0d84558faa [project @ 2000-01-17 08:40:39 by jwe] jwe parents: 3254 diff changeset	46 $$\n\
fa0d84558faa [project @ 2000-01-17 08:40:39 by jwe] jwe parents: 3254 diff changeset	47 @end tex\n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 7815 diff changeset	48 @ifnottex\n\
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	49 \n\
11415 e7ed20f87e82 Add @tex blocks to gammainc and legendre docstrings. Michael Godfrey <godfrey@isl.stanford.edu> parents: 10840 diff changeset	50 @example\n\
10840 89f4d7e294cc Grammarcheck .cc files Rik <octave@nomad.inbox5.com> parents: 10711 diff changeset	51 @group\n\
14437 62a2ef6c09a4 doc: Correct spacing of integrals in Info version of docstrings. Rik <octave@nomad.inbox5.com> parents: 14360 diff changeset	52 x\n\
62a2ef6c09a4 doc: Correct spacing of integrals in Info version of docstrings. Rik <octave@nomad.inbox5.com> parents: 14360 diff changeset	53 1 /\n\
3683 505f5c35a2c9 [project @ 2000-06-27 20:19:47 by jwe] jwe parents: 3548 diff changeset	54 gammainc (x, a) = --------- \| exp (-t) t^(a-1) dt\n\
14360 97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	55 gamma (a) /\n\
97883071e8e4 doc: Correct off-by-1 spacings in all .cc docstrings Rik <octave@nomad.inbox5.com> parents: 14138 diff changeset	56 t=0\n\
10840 89f4d7e294cc Grammarcheck .cc files Rik <octave@nomad.inbox5.com> parents: 10711 diff changeset	57 @end group\n\
11415 e7ed20f87e82 Add @tex blocks to gammainc and legendre docstrings. Michael Godfrey <godfrey@isl.stanford.edu> parents: 10840 diff changeset	58 @end example\n\
5517 947aa3464e1d [project @ 2005-10-28 14:21:11 by jwe] jwe parents: 5307 diff changeset	59 \n\
8517 81d6ab3ac93c Allow documentation tobe built for other formats than tex and info sh@sh-laptop parents: 7815 diff changeset	60 @end ifnottex\n\
5517 947aa3464e1d [project @ 2005-10-28 14:21:11 by jwe] jwe parents: 5307 diff changeset	61 with the limiting value of 1 as @var{x} approaches infinity.\n\
19074 0850b5212619 doc: Add @nospell macro around proper names in documentation. Rik <rik@octave.org> parents: 17861 diff changeset	62 The standard notation is @math{P(a,x)}, e.g., @nospell{Abramowitz} and\n\
0850b5212619 doc: Add @nospell macro around proper names in documentation. Rik <rik@octave.org> parents: 17861 diff changeset	63 @nospell{Stegun} (6.5.1).\n\
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	64 \n\
3683 505f5c35a2c9 [project @ 2000-06-27 20:19:47 by jwe] jwe parents: 3548 diff changeset	65 If @var{a} is scalar, then @code{gammainc (@var{x}, @var{a})} is returned\n\
3444 fa0d84558faa [project @ 2000-01-17 08:40:39 by jwe] jwe parents: 3254 diff changeset	66 for each element of @var{x} and vice versa.\n\
fa0d84558faa [project @ 2000-01-17 08:40:39 by jwe] jwe parents: 3254 diff changeset	67 \n\
3683 505f5c35a2c9 [project @ 2000-06-27 20:19:47 by jwe] jwe parents: 3548 diff changeset	68 If neither @var{x} nor @var{a} is scalar, the sizes of @var{x} and\n\
11415 e7ed20f87e82 Add @tex blocks to gammainc and legendre docstrings. Michael Godfrey <godfrey@isl.stanford.edu> parents: 10840 diff changeset	69 @var{a} must agree, and @code{gammainc} is applied element-by-element.\n\
10698 fa00ccf7b1f9 Implementary complementary incomplete gamma function (bug #30088) David Bateman <dbateman@free.fr> parents: 10155 diff changeset	70 \n\
fa00ccf7b1f9 Implementary complementary incomplete gamma function (bug #30088) David Bateman <dbateman@free.fr> parents: 10155 diff changeset	71 By default the incomplete gamma function integrated from 0 to @var{x} is\n\
17281 bc924baa2c4e doc: Add new @qcode macro for code samples which are quoted. Rik <rik@octave.org> parents: 15195 diff changeset	72 computed. If @qcode{\"upper\"} is given then the complementary function\n\
bc924baa2c4e doc: Add new @qcode macro for code samples which are quoted. Rik <rik@octave.org> parents: 15195 diff changeset	73 integrated from @var{x} to infinity is calculated. It should be noted that\n\
10698 fa00ccf7b1f9 Implementary complementary incomplete gamma function (bug #30088) David Bateman <dbateman@free.fr> parents: 10155 diff changeset	74 \n\
fa00ccf7b1f9 Implementary complementary incomplete gamma function (bug #30088) David Bateman <dbateman@free.fr> parents: 10155 diff changeset	75 @example\n\
11415 e7ed20f87e82 Add @tex blocks to gammainc and legendre docstrings. Michael Godfrey <godfrey@isl.stanford.edu> parents: 10840 diff changeset	76 gammainc (@var{x}, @var{a}) @equiv{} 1 - gammainc (@var{x}, @var{a}, \"upper\")\n\
10698 fa00ccf7b1f9 Implementary complementary incomplete gamma function (bug #30088) David Bateman <dbateman@free.fr> parents: 10155 diff changeset	77 @end example\n\
19185 e09318118fd6 doc: Add note to gamma docstring about using gammaln when input is large. Rik <rik@octave.org> parents: 19074 diff changeset	78 @seealso{gamma, gammaln}\n\
5642 2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe] jwe parents: 5517 diff changeset	79 @end deftypefn")
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	80 {
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	81 octave_value retval;
10698 fa00ccf7b1f9 Implementary complementary incomplete gamma function (bug #30088) David Bateman <dbateman@free.fr> parents: 10155 diff changeset	82 bool lower = true;
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	83
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	84 int nargin = args.length ();
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	85
10698 fa00ccf7b1f9 Implementary complementary incomplete gamma function (bug #30088) David Bateman <dbateman@free.fr> parents: 10155 diff changeset	86 if (nargin == 3)
fa00ccf7b1f9 Implementary complementary incomplete gamma function (bug #30088) David Bateman <dbateman@free.fr> parents: 10155 diff changeset	87 {
20616 fd0efcdb3718 use new string_value method to handle value extraction errors John W. Eaton <jwe@octave.org> parents: 20589 diff changeset	88 std::string s = args(2).string_value ("gammainc: third argument must be \"lower\" or \"upper\"");
fd0efcdb3718 use new string_value method to handle value extraction errors John W. Eaton <jwe@octave.org> parents: 20589 diff changeset	89
fd0efcdb3718 use new string_value method to handle value extraction errors John W. Eaton <jwe@octave.org> parents: 20589 diff changeset	90 std::transform (s.begin (), s.end (), s.begin (), tolower);
fd0efcdb3718 use new string_value method to handle value extraction errors John W. Eaton <jwe@octave.org> parents: 20589 diff changeset	91
fd0efcdb3718 use new string_value method to handle value extraction errors John W. Eaton <jwe@octave.org> parents: 20589 diff changeset	92 if (s == "upper")
fd0efcdb3718 use new string_value method to handle value extraction errors John W. Eaton <jwe@octave.org> parents: 20589 diff changeset	93 lower = false;
fd0efcdb3718 use new string_value method to handle value extraction errors John W. Eaton <jwe@octave.org> parents: 20589 diff changeset	94 else if (s != "lower")
11553 01f703952eff Improve docstrings for functions in DLD-FUNCTIONS directory. Rik <octave@nomad.inbox5.com> parents: 11523 diff changeset	95 error ("gammainc: third argument must be \"lower\" or \"upper\"");
10698 fa00ccf7b1f9 Implementary complementary incomplete gamma function (bug #30088) David Bateman <dbateman@free.fr> parents: 10155 diff changeset	96 }
fa00ccf7b1f9 Implementary complementary incomplete gamma function (bug #30088) David Bateman <dbateman@free.fr> parents: 10155 diff changeset	97
20589 b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	98 if (nargin < 2 \|\| nargin > 3)
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	99 print_usage ();
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	100
20589 b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	101 octave_value x_arg = args(0);
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	102 octave_value a_arg = args(1);
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	103
20589 b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	104 // FIXME: Can we make a template version of the duplicated code below
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	105 if (x_arg.is_single_type () \|\| a_arg.is_single_type ())
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	106 {
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	107 if (x_arg.is_scalar_type ())
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	108 {
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	109 float x = x_arg.float_value ();
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	110
20589 b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	111 if (a_arg.is_scalar_type ())
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	112 {
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	113 float a = a_arg.float_value ();
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	114
20589 b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	115 retval = lower ? gammainc (x, a) : 1.0f - gammainc (x, a);
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	116 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	117 else
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	118 {
20589 b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	119 FloatNDArray a = a_arg.float_array_value ();
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	120
20589 b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	121 retval = lower ? gammainc (x, a) : 1.0f - gammainc (x, a);
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	122 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	123 }
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	124 else
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	125 {
20589 b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	126 FloatNDArray x = x_arg.float_array_value ();
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	127
20589 b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	128 if (a_arg.is_scalar_type ())
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	129 {
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	130 float a = a_arg.float_value ();
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	131
20589 b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	132 retval = lower ? gammainc (x, a) : 1.0f - gammainc (x, a);
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	133 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	134 else
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	135 {
20589 b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	136 FloatNDArray a = a_arg.float_array_value ();
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	137
20589 b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	138 retval = lower ? gammainc (x, a) : 1.0f - gammainc (x, a);
10154 40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	139 }
40dfc0c99116 DLD-FUNCTIONS/.cc: untabify John W. Eaton <jwe@octave.org>* parents: 9758 diff changeset	140 }
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	141 }
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	142 else
20589 b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	143 {
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	144 if (x_arg.is_scalar_type ())
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	145 {
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	146 double x = x_arg.double_value ();
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	147
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	148 if (a_arg.is_scalar_type ())
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	149 {
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	150 double a = a_arg.double_value ();
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	151
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	152 retval = lower ? gammainc (x, a) : 1. - gammainc (x, a);
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	153 }
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	154 else
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	155 {
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	156 NDArray a = a_arg.array_value ();
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	157
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	158 retval = lower ? gammainc (x, a) : 1. - gammainc (x, a);
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	159 }
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	160 }
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	161 else
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	162 {
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	163 NDArray x = x_arg.array_value ();
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	164
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	165 if (a_arg.is_scalar_type ())
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	166 {
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	167 double a = a_arg.double_value ();
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	168
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	169 retval = lower ? gammainc (x, a) : 1. - gammainc (x, a);
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	170 }
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	171 else
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	172 {
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	173 NDArray a = a_arg.array_value ();
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	174
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	175 retval = lower ? gammainc (x, a) : 1. - gammainc (x, a);
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	176 }
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	177 }
b10432a40432 eliminate more simple uses of error_state John W. Eaton <jwe@octave.org> parents: 20207 diff changeset	178 }
3254 28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	179
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	180 return retval;
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	181 }
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	182
28d5f556b8cf [project @ 1999-07-15 16:02:57 by jwe] jwe parents: diff changeset	183 /*
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7789 diff changeset	184 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7789 diff changeset	185 %! a = [.5 .5 .5 .5 .5];
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7789 diff changeset	186 %! x = [0 1 2 3 4];
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14437 diff changeset	187 %! v1 = sqrt (pi)*erf (x)./gamma (a);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14437 diff changeset	188 %! v3 = gammainc (x.*x, a);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14437 diff changeset	189 %! assert (v1, v3, sqrt (eps));
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7789 diff changeset	190
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14437 diff changeset	191 %!assert (gammainc (0:4,0.5, "upper"), 1-gammainc (0:4,0.5), 1e-10)
10698 fa00ccf7b1f9 Implementary complementary incomplete gamma function (bug #30088) David Bateman <dbateman@free.fr> parents: 10155 diff changeset	192
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7789 diff changeset	193 %!test
a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7789 diff changeset	194 %! a = single ([.5 .5 .5 .5 .5]);
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14437 diff changeset	195 %! x = single ([0 1 2 3 4]);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14437 diff changeset	196 %! v1 = sqrt (pi ("single"))*erf (x)./gamma (a);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14437 diff changeset	197 %! v3 = gammainc (x.*x, a);
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14437 diff changeset	198 %! assert (v1, v3, sqrt (eps ("single")));
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7789 diff changeset	199
17787 175b392e91fe Use GNU style coding conventions for code in libinterp/ Rik <rik@octave.org> parents: 17744 diff changeset	200 %!assert (gammainc (single (0:4), single (0.5), "upper"),
14501 60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14437 diff changeset	201 %! single (1)-gammainc (single (0:4), single (0.5)),
60e5cf354d80 Update %!tests in DLD-FUNCTIONS/ directory with Octave coding conventions. Rik <octave@nomad.inbox5.com> parents: 14437 diff changeset	202 %! single (1e-7))
7815 a41df65f3f00 Add some single precision test code and fix resulting bugs David Bateman <dbateman@free.fr> parents: 7789 diff changeset	203 */

Mercurial > octave-nkf

annotate libinterp/corefcn/gammainc.cc @ 20616:fd0efcdb3718