[BioC] plotting GO output as pie charts

[Celine Carret]

Hi everybody,
I was wondering if there was a simple function allowing me to do this, 
plotting a GO-output search from ensembl into a pie-chart?
I looked at biomaRt but the main problem I'm facing here is actually 
calling ensembl database as my Institute doesn't allow me to do so 
through R (I'm working on a farm nodes Linux 64), but also I couldn't 
actually find anywhere such a function in the package.
So I took out my list of Human affyID I'm interested in, and used 
biomart directly on the web of Ensembl to fetch all the GO IDs 
associated... Now I'd like to plot those, and preferentially in a "user 
defined" fashion (by selecting the GO categories I want my genes to 
separate into, the end idea would be to compare several lists, for the 
same categories...)

Thank you for your help
Celine

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Celine Carret PhD
Pathogen Microarrays group
The Wellcome Trust Sanger Institute
Hinxton, Cambridge CB10 1SA, UK.
tel. +44 (0)1223 494 940
fax. +44 (0)1223 494 919
email: ckc at sanger.ac.uk
http://www.sanger.ac.uk/PostGenomics/PathogenArrays/