[BioC] Finding longest transcript

[Gad Abraham]

Hi,

I've got some Affy U133A data, and I'd like to find out for each gene,
which probeset represents the longest transcript.

Is there a nice way to do this in BioC/BiomaRt?

Thanks,
Gad

-- 
Gad Abraham
PhD Student, Dept. CSSE and NICTA
The University of Melbourne
Parkville 3010, Victoria, Australia
email: gabraham at csse.unimelb.edu.au
web: http://www.csse.unimelb.edu.au/~gabraham