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comparison scripts/statistics/distributions/normcdf.m @ 5411:bee21f388110

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[project @ 2005-07-13 17:53:44 by jwe]
author jwe
date Wed, 13 Jul 2005 17:53:49 +0000
parents 56e066f5efc1
children 34f96dd5441b
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5410:56e066f5efc1 5411:bee21f388110
16 ## along with Octave; see the file COPYING. If not, write to the Free 16 ## along with Octave; see the file COPYING. If not, write to the Free
17 ## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 17 ## Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
18 ## 02110-1301, USA. 18 ## 02110-1301, USA.
19 19
20 ## -*- texinfo -*- 20 ## -*- texinfo -*-
21 ## @deftypefn {Function File} {} normal_cdf (@var{x}, @var{m}, @var{v}) 21 ## @deftypefn {Function File} {} normcdf (@var{x}, @var{m}, @var{v})
22 ## For each element of @var{x}, compute the cumulative distribution 22 ## For each element of @var{x}, compute the cumulative distribution
23 ## function (CDF) at @var{x} of the normal distribution with mean 23 ## function (CDF) at @var{x} of the normal distribution with mean
24 ## @var{m} and variance @var{v}. 24 ## @var{m} and variance @var{v}.
25 ## 25 ##
26 ## Default values are @var{m} = 0, @var{v} = 1. 26 ## Default values are @var{m} = 0, @var{v} = 1.
27 ## @end deftypefn 27 ## @end deftypefn
28 28
29 ## Author: TT <Teresa.Twaroch@ci.tuwien.ac.at> 29 ## Author: TT <Teresa.Twaroch@ci.tuwien.ac.at>
30 ## Description: CDF of the normal distribution 30 ## Description: CDF of the normal distribution
31 31
32 function cdf = normal_cdf (x, m, v) 32 function cdf = normcdf (x, m, v)
33 33
34 if (! ((nargin == 1) || (nargin == 3))) 34 if (! ((nargin == 1) || (nargin == 3)))
35 usage ("normal_cdf (x, m, v)"); 35 usage ("normcdf (x, m, v)");
36 endif 36 endif
37 37
38 if (nargin == 1) 38 if (nargin == 1)
39 m = 0; 39 m = 0;
40 v = 1; 40 v = 1;
41 endif 41 endif
42 42
43 if (!isscalar (m) || !isscalar(v)) 43 if (!isscalar (m) || !isscalar(v))
44 [retval, x, m, v] = common_size (x, m, v); 44 [retval, x, m, v] = common_size (x, m, v);
45 if (retval > 0) 45 if (retval > 0)
46 error ("normal_cdf: x, m and v must be of common size or scalar"); 46 error ("normcdf: x, m and v must be of common size or scalar");
47 endif 47 endif
48 endif 48 endif
49 49
50 sz = size (x); 50 sz = size (x);
51 cdf = zeros (sz); 51 cdf = zeros (sz);