[BioC] Memory error wihle processing 35 Affymetrix cel files

[Gunther Höning]

Dear list,

currently I'm trying to process 35 cel-files of the Affymetrix Human U133
Plus 2.0 chip.

I load the libraries and read the chips into an affybatch.
Background correction works well but during normalisation I always receive:
"Cannot allocate vector of size 352848...")

I am using openlinux 10.2 with 2 GB RAM.
Does anyone know a solution to this problem ?
Using more RAM ?

Gunther

Code:

library("affy") 		
library("hgu133plus2probe")
library("hgu133plus2cdf")
chips <- ReadAffy()
bg <- bg.correct(chips, method ="rma")
norm <- normalize(bg, method ="quantiles")