[R] R and memory

Thomas Lumley thomas at biostat.washington.edu
Wed Jan 10 20:06:19 CET 2001

On Wed, 10 Jan 2001, Meriema Belaidouni wrote:

> Hello
> I have some problems to read large data file with R.
> can someone tell me why running
> R --visze=30M --nsize=2000k
> uses in fact 63M?

It potentially uses even more than that. You have asked for 30Mb of vector
heap and 2 million cons cells. Each cons cell takes 32 bytes (I think), so
this would be 90Mb plus whatever the R program itself uses.


Thomas Lumley			Asst. Professor, Biostatistics
tlumley at u.washington.edu	University of Washington, Seattle

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