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hypg_rnd

hypergeometric random draws

CALLING SEQUENCE

[x]=hypg_rnd(nobs,n,K,N)

PARAMETERS

Input

* nobs = number of draws

* n,K,N = parameters of the distribution

 

Output

* x = a vector of random draws from the distribution

DESCRIPTION

Returns hypergeometric random draws prob(X=x) = (N)^-1 (K) (N-K) (n) (x) (n-x)

NOTE: mean = (n/N)*k ; variance = [(n*K)/(N*N)*(N-1)]*(N-K)*(N-n)

EXAMPLE

p=hypg_pdf(100,15,20,30)

AUTHOR

Eric Dubois 2002

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