[R] R version 2-12.0 - running as 32 or as 64 bit?

[Berwin A Turlach]

G'day Dimitri,

On Fri, 29 Oct 2010 16:45:00 -0400
Dimitri Liakhovitski <dimitri.liakhovitski at gmail.com> wrote:

> Question: I installed R verison 2-12.0 on my Windows 7 (64 bit) PC.
> When I was installing it, it did not ask me anything about 32 vs. 64
> bit. So, if I run R now - is it running as a 32-bit or a 64-bit?

Well, when I did the same, I got two shortcuts installed on my desktop,
one named R 2.12.0 and the other named R x64 2.12.0.  If I had any
doubts which version of R these shortcuts would start, then the fourth
line of the start-up message would put them to rest.  Missing that
message, you can always issue the command

> .Machine$sizeof.pointer

if the answer is 4, you are running 32bit, if the answer is 8, then you
are running 64 bit.

HTH.

Cheers,
		
	Berwin

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