[R] [R]Summary: Random number generator in R compared to S
Alain LE TERTRE
a.letertre at invs.sante.fr
Wed Jan 15 09:47:03 CET 2003
Thanks to tom blackwell and Paul Gilbert for the help on my question below.
Tom suggested using a system command in S to run R (using a batch file),
apply the functions, generate output in a file readable in S.
Paul suggested to use his function to generate random number in S with the
same random number generator used in R (see his syskern package).
O__ ---- Alain Le Tertre
c/ /'_ --- Institut de Veille Sanitaire (InVS)
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email: a.letertre at invs.sante.fr
De : r-help-admin at stat.math.ethz.ch
[mailto:r-help-admin at stat.math.ethz.ch]De la part de Paul Gilbert
Envoye : mardi 14 janvier 2003 16:45
A : a.letertre at invs.sante.fr
Cc : r-help at stat.math.ethz.ch
Objet : Re: [R] Random number generator in R compared to S
Alain LE TERTRE wrote:
> I'm doing some simulations for which i need to use both S-plus and R.
> I generate in S+ some random normal distributions to define one dataset by
> iteration. I need to use the same dataset generated in S-plus in R.
> I was first thinking to generate in R the same dataset by using the same
> random number generator with a fixed seed. But It seems that S-plus and R
> don't use the same random number generator.
> So my question is: Is there a way to pass dynamically dataset generated in
> S-plus to R, run a command, extract results, and pass them back to S-plus?
> Or is it more efficient to generate all the datasets in S-plus and export
> them to R?
> Or anything else?
> Any hints will be greatly appreciated.
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