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Generation of Random Variates

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Generation of Random Variates


James Huntley (view profile)


generates random variates from over 870 univariate distributions

% invgengam_cdf.m - evaluates an Inverse Generalized Gamma Cumulative Distribution.
%   See "Continuous Univariate Distributions", v.2, Johnson, Kotz, and Balakrishnan, 
%   J. Wiley, 1995, p.401.               
%               Vector Form of CDF !!!
%  Created by:  Jim Huntley,  06/19/07.

function [cdf] = invgengam_cdf(x,a,bet,p)

tol = 1e-8;
trace = [];
warning off MATLAB:quad:MinStepSize;

minx = min(x);

% Integrate PDF to get CDF.
warning off MATLAB:quad:MinStepSize
sz = size(x,2);
for jz = 1:sz
    cdf(jz) = quad(@invgengam_pdf,minx,x(jz),tol,trace,a,bet,p);


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