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Re: st: simulating bernoulli random numbers


From   Roger Newson <roger.newson@kcl.ac.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: simulating bernoulli random numbers
Date   Wed, 02 Jul 2003 21:01:06 +0100

At 21:02 02/07/02 +0200, Thomas Mählmann wrote:
Dear all,

I have an urgent request. Does someone know of a way to draw zero's und
one's random numbers from a bernoulli variable? Can I use the "uniform
()" command for this task?
Yes, you can. If you want the probability of success to be 0.75, then you can simply type

gene byte bernie=uniform()<=0.75

and -bernie- will contain a Bernoulli pseudo-random variable with a probability 0.75 of success. You can do the same with other probabilities of success.

I hope this helps.

Roger


--
Roger Newson
Lecturer in Medical Statistics
Department of Public Health Sciences
King's College London
5th Floor, Capital House
42 Weston Street
London SE1 3QD
United Kingdom

Tel: 020 7848 6648 International +44 20 7848 6648
Fax: 020 7848 6620 International +44 20 7848 6620
or 020 7848 6605 International +44 20 7848 6605
Email: roger.newson@kcl.ac.uk
Website: http://www.kcl-phs.org.uk/rogernewson

Opinions expressed are those of the author, not the institution.


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