[R] what are the limits on R array sizes?

2006-02-08 Thread Mike Miller
I have some computers with a massive amount of memory, and I have some 
jobs that could use very large matrix sizes.  Can R handle matrices of 
larger than 2GB?  If I were to create a matrix of 1,000,000 x 1,000, it 
would use about 8GB.  Can R work with an array of that size if I have 
compiled R on an IA64 Linux system with 15GB of RAM?

Mike

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Re: [R] what are the limits on R array sizes?

2006-02-08 Thread Prof Brian Ripley
On Wed, 8 Feb 2006, Mike Miller wrote:

 I have some computers with a massive amount of memory, and I have some
 jobs that could use very large matrix sizes.  Can R handle matrices of
 larger than 2GB?  If I were to create a matrix of 1,000,000 x 1,000, it
 would use about 8GB.  Can R work with an array of that size if I have
 compiled R on an IA64 Linux system with 15GB of RAM?

Yes. See ?Memory-limits.

help.search(limits) gets you there.

-- 
Brian D. Ripley,  [EMAIL PROTECTED]
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, UKFax:  +44 1865 272595

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