[R] R Cmdr memory

Duncan Murdoch murdoch at stats.uwo.ca
Sun Mar 28 15:20:12 CEST 2010

On 28/03/2010 9:03 AM, David Winsemius wrote:
> On Mar 28, 2010, at 4:35 AM, ManInMoon wrote:
>> Is there a 64 bit R - and where can I get hold of it for Windows  
>> please?
> For Windows XP?, Not that I know of. There are proprietary versions  
> for Vista and I believe Professor Ripley is working on an experimental  
> version for the 64 bit versions of Windows.

We're planning to release 64 bit builds with R 2.11.0.  They are 
currently being built as part of the test process, though the builds are 
still a little irregular.  You can download from <CRAN 
mirror>/bin/windows64/contrib for now, and soon from <CRAN 

The 64 bit versions of R will require a 64 bit version of Windows to run 
on.  I think there may be 64 bit versions of XP, but they are uncommon 
and I don't know if they support our builds; we're testing in 64 bit 
Vista and Windows 7.

Revolution Computing also sells a build produced with a different 
compiler.  It has the advantage that the compiler is probably in better 
shape than the one we are using and they'll provide support with it; the 
disadvantage is that they'll charge for it, and they are probably not as 
up to date as us with respect to released version number.

Duncan Murdoch

>> Your sizes function is useful thanks - but is there some R parameter  
>> to
>> allow maximum usage of memory?
> Read the Windows FAQ and seearch on "memory".

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