How Can I Tell if the R Running is 64 bit or 32 bit?
Well, I am indeed running 64-bit Ubuntu and 64-bit R. Thanks! Tom
Peter Dalgaard wrote:
Marc Schwartz wrote:
Try:
8*4
[1] 32 As per the help page for .Machine: sizeof.pointer the number of *bytes* in a C SEXP type. So: 8 bits per byte * 4 bytes = 32 bits
Also (outside of R) type "uname -a". This should give something like Linux viggo 2.6.18.8-0.10-default #1 SMP Wed Jun 4 15:46:34 UTC 2008 x86_64 x86_64 x86_64 GNU/Linux on a 64-bit system (SUSE in this case) but Linux turmalin 2.6.22.18-0.2-default #1 SMP 2008-06-09 13:53:20 +0200 i686 i686 i386 GNU/Linux on 32-bitters
:-) HTH, Marc Schwartz on 08/08/2008 03:58 PM milton ruser wrote:
Dear Prof. B.Ripley, If :
.Machine$sizeof.pointer
[1] 4
2*2*2*2
[1] 16 So I am running with 16 bits? How can I know the number of bits supported on my machine? Kindly, miltinho astronauta brazil On 8/8/08, Prof Brian Ripley <ripley at stats.ox.ac.uk> wrote:
Look at .Machine$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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