[R] how update to latest version of R on mac

Jane Synnergren jane.synnergren at his.se
Fri Dec 19 22:56:48 CET 2014

I get following error when trying to update the affy package to latest

Error: cannot remove prior installation of package Œaffy¹

I think it is because affy requires R 3.1.1 and I have 3.0.2

I try to find a guide how I do to upgrade from 3.0.2 to latest version on
mac, but cannot find any good description. Can anyone guide me?

Do I just download R for mac (R-3.1.2-snowleopard.pkg) from
<http://ftp.sunet.se/pub/lang/CRAN/bin/macosx/R-3.1.2-snowleopard.pkg> and

What will happen with all installed packages?
I have OS X Lion 10.7.5
Which version number is stable and reliable?

I also need a guide of how to update to latest version of  bioconductor on

Descriptions for windows is available everywhere.


Jane Synnergren, PhD
Systems Biology Research Center
School of Bioscience
University of Skövde

email: jane.synnergren at his.se
mobile: +46 (0)708 806495
webpage: his.se/synj

Postal Address: 			Visiting address:

Box 408 				Kanikegränd 3A
541 28 Skövde			Skövde

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