Merge pull request #482 from JohannesPfeifer/master
Adds chi2cdf function if Statistics toolbox is missingtime-shift
commit
efd5a82d31
|
@ -0,0 +1,37 @@
|
|||
function CDF = chi2cdf(x, n)
|
||||
% chi2cdf CDF of the Chi2 distribution
|
||||
% CDF = chi2cdf(x, n) computes, for each element of X, the
|
||||
% CDF at X of the chi-square distribution with N degrees of freedom.
|
||||
% Original file: statistics/distributions/chi2inv.m
|
||||
|
||||
% Copyright (C) 2013 Dynare Team
|
||||
%
|
||||
% This file is part of Dynare.
|
||||
%
|
||||
% Dynare 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.
|
||||
%
|
||||
% Dynare 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 Dynare. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
if (nargin ~= 2)
|
||||
error ('chi2cdf: you must give two arguments');
|
||||
end
|
||||
|
||||
if (~isscalar (n))
|
||||
[retval, x, n] = common_size (x, n);
|
||||
if (retval > 0)
|
||||
error ('chi2cdf: x and n must be of common size or scalar');
|
||||
end
|
||||
end
|
||||
|
||||
CDF = gamcdf (x, n / 2, 2);
|
||||
|
||||
end
|
Loading…
Reference in New Issue