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annotate scripts/statistics/distributions/stdnormal_cdf.m @ 11472:1740012184f9

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Use uppercase for variable names in error() strings to match Info documentation. Only m-files done.
author Rik <octave@nomad.inbox5.com>
date Sun, 09 Jan 2011 21:33:04 -0800
parents e74bff13aa26
children fd0a3ac60b0e
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1 ## Copyright (C) 1995, 1996, 1997, 1998, 2000, 2002, 2004, 2005, 2006,
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2 ## 2007 Kurt Hornik
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3 ##
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4 ## This file is part of Octave.
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5 ##
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6 ## Octave is free software; you can redistribute it and/or modify it
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7 ## under the terms of the GNU General Public License as published by
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8 ## the Free Software Foundation; either version 3 of the License, or (at
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9 ## your option) any later version.
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10 ##
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11 ## Octave is distributed in the hope that it will be useful, but
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12 ## WITHOUT ANY WARRANTY; without even the implied warranty of
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13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 ## General Public License for more details.
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15 ##
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16 ## You should have received a copy of the GNU General Public License
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17 ## along with Octave; see the file COPYING. If not, see
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18 ## <http://www.gnu.org/licenses/>.
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19
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20 ## -*- texinfo -*-
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21 ## @deftypefn {Function File} {} stdnormal_cdf (@var{x})
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22 ## For each component of @var{x}, compute the CDF of the standard normal
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23 ## distribution at @var{x}.
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24 ## @end deftypefn
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26 ## Author: KH <Kurt.Hornik@wu-wien.ac.at>
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27 ## Description: CDF of the standard normal distribution
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29 function cdf = stdnormal_cdf (x)
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30
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31 if (nargin != 1)
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32 print_usage ();
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33 endif
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34
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35 sz = size (x);
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36 if (numel(x) == 0)
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1740012184f9 Use uppercase for variable names in error() strings to match Info documentation. Only m-files done.
Rik <octave@nomad.inbox5.com>
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37 error ("stdnormal_cdf: X must not be empty");
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38 endif
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39
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40 cdf = erfc (x / (-sqrt(2))) / 2;
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41
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42 endfunction
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