[R] R and Memory

[Mulholland, Tom]

I would suggest that you make a more thorough search of the R-Archives.
(http://finzi.psych.upenn.edu/search.html) If you do you will find this
discussion has been had several times and that the type of machine you
are running will have an impact upon what you can do. My feeling is that
you are going have to knuckle down with the documentation and understand
how R works and then when you have specific issues that show you have
read all the appropriate documentation, you might try another message to
the list.

Ciao, Tom

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Tom Mulholland
Senior Policy Officer
WA Country Health Service
Tel: (08) 9222 4062
 
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-----Original Message-----
From: Edward McNeil [mailto:edward at ratree.psu.ac.th] 
Sent: Tuesday, 2 December 2003 8:45 AM
To: r-help at stat.math.ethz.ch
Subject: [R] R and Memory


Dear all,
This is my first post.
We have started to use R here and have also started teaching it to our
PhD students. Our unit will be the HQ for developing R throughout
Thailand.

I would like some help with a problem we are having. We have one sample
of data that is quite large in fact - over 2 million records (ok ok it's
more like a population!). The data is stored in SPSS. The file is over
350Mb but SPSS happily stores this much data. Now when I try to read it
into R it grunts and groans for a few seconds and then reports that
there is not enough memory (the computer has 250MB RAM). I have tried
setting the memory in the command line (--max-vsize and --max-mem-size)
but all to no avail.

Any help would be muchly appreciated!

Edward McNeil (son of Don)
Epidemiology Unit
Faculty of Medicine
Prince of Songkhla University
Hat Yai  90110
THAILAND

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