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Re: st: Poisson random number generator


From   Roger Harbord <roger.harbord@bristol.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Poisson random number generator
Date   Thu, 07 Apr 2005 17:11:03 +0100

I'd suggest Bobby Gutierrez's -genpoisson-, part of his excellent -gendist- package. Type -findit genpoisson- or -findit gendist- for details and to download. This uses plug-ins so is a lot faster than Hilbe & Linde-Zwirble's -rndpoi- and -rndpoix- from STB-28, though it only starts to matter if you're doing extensive simulations. Plug-ins require Stata version 8.1 or higher.

Interestingly, -findit random poisson generate- or -findit random poisson generator- fails to bring up gendist, perhaps because the package description contains "generation" and "generating" but not "generate"? But -findit random poisson generat- works. The lesson seems to be to omit word-endings that might change when using -findit- (or -search-, presumably).

Roger.


--On 07 April 2005 17:18 +0200 Andrea Vezzulli <andrea.vezzulli@hp700.statistica.unimib.it> wrote:


Dear All

i would like to know if STATA v8 can generate pseudo-random numbers from a
Poisson distribution having a user-defined parameter lambda (the mean of
the  process)

Thank you

Andrea

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