[R] random sequence
Prof Brian Ripley
ripley at stats.ox.ac.uk
Mon Apr 26 18:28:03 CEST 1999
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> From: yudi at hermes.ucd.ie
> Date: Mon, 26 Apr 1999 13:38:10 +0000 (GMT)
> Subject: [R] random sequence
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> Dear All,
From: yudi at hermes.ucd.ie
> How can I get the same stream of random numbers in R and S?
> I know one of the generators in R is Super-Duper also used in S-plus,
Sorry, but no, it isn't quite the same as I understand them. S-PLUS
skips members of the sequence occasionally. But it depends what you
mean here: S-PLUS != S and I very much doubt you have S.
I don't know why you want to do this: if you use any of the built-in
operations (such as rnorm) you will get different answers as different
algorithms are used. If all you want is a stream of runif() type,
implement your version on both systems to be sure.
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272860 (secr)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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