[BioC] affyio

James W. MacDonald jmacdon at med.umich.edu
Wed Jul 5 19:25:58 CEST 2006

Hi Khan,

Khan, Sohail wrote:
> Thanks Sean.
> How can I upgrade R without having to install all the packages I have already installed??

There have been threads in R-help that discuss this issue, so you might 
use RSiteSearch() to see if you can find one that you like. One 
possibility is to install the new version of R, copy your library 
directory over, and then run update.packages().

However, I don't see how this is any better (or faster) than simply 
installing the new version of R and then installing all the packages 
that you might want. This eliminates any problems you might encounter 
with incompatible versions of packages.



James W. MacDonald, M.S.
Affymetrix and cDNA Microarray Core
University of Michigan Cancer Center
1500 E. Medical Center Drive
7410 CCGC
Ann Arbor MI 48109

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