[R] vsize and nsize
ihaka at stat.auckland.ac.nz
Mon May 17 22:22:48 CEST 1999
On Mon, 17 May 1999, Z. Todd Taylor wrote:
> Tony Long <tdlong at uci.edu> wrote:
> > I agree that R is not "designed" for large calculations. On the
> > other hand it is nice to have one statistical package to use for all
> > calculations. I mostly deal with Drosophila and DNA, as such I am an
> > amateur statistician and would like to avoid learning a number of
> > statistical languages. With a big Linux box, I can often power through
> > things. In the past I have found it frustrating to do a bunch of stuff in
> > SAS only to hit a snag and then have to write (time consuming) "C" code to
> > finish the job. So although not designed for large calculations, R is so
> > flexible and logical that it is very attractive to use it for such...I
> > think that many other people may be similarly attracted to the language. I
> > would appreciate dialog, as I think that much more may have been
> > accomplished in R than was intended by the founders.
> R's poor handling of large datasets is half the reason I have
> not moved more of my work from S(plus) to R (the other half
> being the absence of trellis). I love its lexical closures, but
> they're not worth the memory penalty if you have huge datasets.
> Maybe someday R will get something akin to Perl's 'tie'
> mechanism that would allow practical analysis of huge
> datasets. Maybe that's not possible.
Both of these things are being worked on for R 1.0, but I can't give
any timeframe, sorry. I have a design for the memory changes and have
begun implementation experiments. Paul Murrell and some others are
thinking about a ``lattice'' graphics package -- the name ``trellis''
begin trademarked :-)
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch
More information about the R-help