[BioC] Reading Affy Snp Chips. Probe level problem.

[Raoul-Sam Daruwala]

I have the following problem. I am trying to read an affy chip using BioC,  
the chip is the 10K snp Chip V2.

I can't seem to find any methods (in the documentation) that will tell me  
what quartet offsets are for each probe quartet. i.e. I think I can find  
the values of the probes for each Affy Probe ID but what I need to know is  
what base is being used on the mismatched alleles and where it is, in  
terms of the offset.

Any help will be appreciated.

R-S

-- 
Dr. Raoul-Sam Daruwala
NYU/Courant Bioinformatics Group
715 Broadway, Rm 1011
New York, NY 10003

e-mail: raoul [at] cs.nyu.edu
Tel: 212 998 3340 (Office/VM)