[R] Large data sets in R
andy_liaw at merck.com
Mon Oct 29 15:20:52 CET 2001
Can this be added to the official FAQ (or perhaps a more generic response)?
I believe the question qualifies as a legitimate FAQ.
(Or maybe it's there already? Haven't check it lately...)
> -----Original Message-----
> From: Prof Brian Ripley [mailto:ripley at stats.ox.ac.uk]
> Sent: Monday, October 29, 2001 8:45 AM
> To: Laura Gross
> Cc: r-help at stat.math.ethz.ch
> Subject: Re: [R] Large data sets in R
> On Mon, 29 Oct 2001, Laura Gross wrote:
> > As a new user of R, I'm wondering what the maximum matrix
> size is in R?
> > I have a large data set consisting of 9000 people and want
> to be able to
> > create large matrices involving these. Is R suitable for large data
> > sets?
> The answer depends on
> 1) Your platform
> 2) The amount of memory you have (especially of RAM)
> 3) What you want to do with 9000 cases, in particular how
> much information
> you have on them.
> As a general guide, I would say 9000 cases was not large for R on a
> machine with say 256Mb RAM. But a cluster analysis needing a
> 9000*9000 matrix would be too large.
> Brian D. Ripley, ripley at stats.ox.ac.uk
> 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 272860 (secr)
> Oxford OX1 3TG, UK Fax: +44 1865 272595
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