[R] Random numbers

From: Carl <carl_at_mcs.st-and.ac.uk>
Date: Thu 22 Dec 2005 - 01:47:24 EST


Hi All.
I have R code whose functionality is being replicated within a C+ program. The outputs are to be compared to validate the conversion somewhat - however (as is always the case) I have stuffed my code with random number calls.

Random uniform numbers in C+ are being produced using the (Boost) mersenne-twister generators (mt11213b & mt19937) - which is the default type of generator in R (if I read things correctly). If it was all within R I would just set the seed for reproducibility.

Basically - how do I specify in C+ for a set of random uniform numbers such that they are the same as from R? I have considered the possibility of storing/using the R generated random numbers in the C+ version for validation purposes - but there are a lot of them, and that strikes me as a generally ugly way of doing things.

thanks in advance
C

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Carl Donovan
Lecturer in statistics
Ph +44 1334 461802
The Observatory
Buchanan Gardens
University of St Andrews
St Andrews
Fife
KY16 9LZ
Scotland

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Received on Thu Dec 22 01:52:59 2005

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