[BioC] annotation

[Marcelo Brandão]

Hello there
I am using Bioc to analyze a Nimblegen Microarray. Everything seems to
be smoothly working. I would like to ask for some help, I have 12 xys
files, and wander if there is a way to "annotate" each one of them as
experimental, control or mutated. So, when I will perform any
comparison there is any way to design the experiment as designEsp <-
cbind(Grp1=1,Grp2vs1=c(control,mutated)) ?

Complicated? Well, to simplify:
there is a way to simply say to Bioc: "now I will analyze control
versus experimental."

Many thanks in advance.

Marcelo

-- 
Marcelo Mendes Brandão
Postdoc fellow
Laboratório de Biologia Molecular de Plantas - ESALQ/USP
Website: http://bioinfo.esalq.usp.br
AtPIN: http://bioinfo.esalq.usp.br/atpin
SKYPE: mmbrand
Tel: (+55) 19 3429 4442