Re: [R] Keeping memory usage low for a big script

From: Duncan Murdoch <>
Date: Thu 14 Jul 2005 - 23:57:27 EST

On 7/14/2005 9:46 AM, Ken Termiso wrote:
> Hi all,
> I've got a script that I run on several computers, some with much less ram
> than others, and I would like to try and keep the memory usage as low as
> possible. The script creates variables to store intermediate results of
> calculations, and then at the end writes a text file with the results of the
> calculations.
> Is a quick and dirty way to accomplish this to use rm() to delete objects no
> longer in use, and then run gc()? ...or is there a better way?

Using rm() is good. gc() will run automatically as needed; the main reason to run it yourself is just to make calculation timings more reproducible. It will also affect memory fragmentation, most likely beneficially, but not necessarily...

Duncan Murdoch mailing list PLEASE do read the posting guide! Received on Fri Jul 15 00:01:03 2005

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