[R] Initialising Mersenne-Twister with one integer

From: Gad Abraham <g.abraham_at_ms.unimelb.edu.au>
Date: Mon 25 Sep 2006 - 08:32:58 GMT


Hi,

It seems to me that the Mersenne-Twister PRNG can be initialised using one integer instead of 624 integers, since inside RNG.c code there's a function defined as MT_sgenrand(Int32).

How do I actually set this seed within R?

I've tried:

> .Random.seed <- c(3, 1)
> runif(1)


Error in runif(1) : .Random.seed has wrong length

In addition, is '3' actually the correct rng.kind for the Mersenne-Twister?

I'm using R version 2.2.1, 2005-12-20 on Ubuntu Dapper Linux 686.

Thanks,
Gad

-- 
Gad Abraham
Department of Mathematics and Statistics
University of Melbourne
Parkville 3010, Victoria, Australia
email: g.abraham@ms.unimelb.edu.au
web: http://www.ms.unimelb.edu.au/~gabraham

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Received on Mon Sep 25 18:37:21 2006

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