[BioC] finding affy_ID from genesymbol

[Andreas Zankl]

I am trying to adapt the limma-package volcanoplot so that the user 
can specify a list of genesymbols that get labeled in the plot. To do 
this, I have to convert from genesymbol to affy_ID, to find the right 
spot in the fit object. Is there a function to convert from 
genesymbol to affy_ID? Is there another way to do this?

Thanks
Andreas
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Andreas Zankl, MD
Division of Molecular Pediatrics
Clinique Infantile 02/50
CHUV
Avenue Pierre Decker 2
CH-1011 Lausanne
Switzerland
Phone: +41-21-3143778
Fax: +41-21-3143546
Email: andreas.zankl at gmail.com