[R] How Can I Tell if the R Running is 64 bit or 32 bit?

[Prof Brian Ripley]

Look at .Machine$sizeof.pointer (in bytes).

On Fri, 8 Aug 2008, Tom La Bone wrote:

>
> I think I installed 64-bit Ubuntu 8.04 and 64-bit R on my computer. I can't
> seem to find anything that says "this is 64-bit Ubuntu" or "this is 64-bit
> R". How do I tell what version of R I am running?
>
> Tom
> -- 
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-- 
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 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595