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Re: st: Poisson Number Generation

From   "E. Paul Wileyto" <>
Subject   Re: st: Poisson Number Generation
Date   Thu, 21 Feb 2008 08:45:16 -0500

I don't think there is any way other than by brute force. Generate the uniform random number, and then go through the cumulative distribution of Poisson counts with a lot of comparisons. You will need to pick a place to stop (largest count possible) or you could just keep going. Logical functions will be more efficient than if/thens.


Martin Weiss wrote:

Dear Statalisters,

to pick up the recent discussion of random number generation in Stata, how
would one go about generating poisson random numbers without calling any
external programs? I am certainly not as adept as others on the list
inverting cumulative distribution functions, so I would appreciate any

Martin Weiss

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