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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

chi_pdf(x, nu)
% chi_pdf.m - evaluates the Chi Probability Density Function.  
%                See "Dataplot Reference Manual", CHCDF, AUX-93, NIST, 3/25/97.
%  Created by:  Jim Huntley,  03/03/05.

function [pdf] = chi_pdf(x, nu)

%persistent coef

    coef = 2^(1-0.5*nu);

pdf = coef * exp(-0.5*x^2) * x^(nu-1);


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