Message-ID: <Pine.A41.4.58.0402050740050.95412@homer41.u.washington.edu>
Date: 2004-02-05T15:44:20Z
From: Thomas Lumley
Subject: Using huge datasets
In-Reply-To: <40211B65.30706@jhsph.edu>
On Wed, 4 Feb 2004, Roger D. Peng wrote:
>
> As far as I know, R does not have a "memory limitation" --
> the only limit is the memory installed on your computer.
>
The only practical limitation is the pointer size of your machine, so
32-bit machine can't address more than 4Gb, and R probably won't get all
of that.
Further out, R will run into problems if you try to have a vector with
more than 2^31 elements (since length() returns an integer), and probably
if you have more than 2^31 objects. I would guess that there are tighter
limitations implied by the .rda save format.
-thomas