[R] Determining 32- vs. 64-bit Windows

[peter dalgaard]

I believe that b. is .Machine$sizeof.pointer*8. 

I am not aware of a method to figure out the difficult part of a.: whether a 32 bit R is running on 64 bit Windows. I'd expect that you have to ask the OS somehow. Google coughs up one or two interesting pointers.

-pd  

On 10 Apr 2014, at 21:48 , Fisher Dennis <fisher at plessthan.com> wrote:

> 3.0.2
> Windows
> 
> Colleagues,
> 
> If I am setting up code for others and I don’t know their configuration, what is the simplest way to find out the following within R:
> 	a.  is the system 32- or 64-bit?
> 	b.  if the system is 64-bit, is R 32- or 64-bit?
> 
> Dennis
> 
> Dennis Fisher MD
> P < (The "P Less Than" Company)
> Phone: 1-866-PLessThan (1-866-753-7784)
> Fax: 1-866-PLessThan (1-866-753-7784)
> www.PLessThan.com
> 
> 
> 
> 
> 	[[alternative HTML version deleted]]
> 
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-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
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