[R] " cannot allocate vector of length 1072693248"

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From: David L. Van Brunt, Ph.D. (informatics@myhelios.net)
Date: Sat 08 May 2004 - 02:29:32 EST


Message-id: <BCC1239C.8ACC%informatics@myhelios.net>

Well, I've done everything I can think of the make the code more efficient,
but it seems (if I read this error message correctly) that I'm running out
of memory on what should be small data set.

Here's the sequence:

A vector of 30 possible identifiers
For each value, query a MySQL database to pull in 80 or so records
Run a few different random Forests on those data
Print the results as I go
"rm()" all the objects created in the loop, including all the old data
Next value, to repeat for each identifier.

Round the 3rd time through the loop, I get kicked out with:

"Error in as.vector(data) : cannot allocate vector of length 1072693248"

This is on Mac OS X, which is UNIX-based (from freeBSD, as I understand it),
so I haven't set anything special with the memory at startup. But then, I
only have 80 observations running through at a time, so it doesn't seem like
there should be a memory issue.

Any ideas?

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