[BioC] obtaining PM/MM data from the .CEL files

[Stephen Nyangoma]

Hi
I am just beginning my research in the analysis of Oligonucleotide
GeneChip data. I have difficulty getting information from the data
bases. I have been given some .CEL files and I need to extract perfect
match (PM)/mismatch (MM) pair signal intensities.

Where can I get information how to do this? 
Where can I get good information about extracting info from .CEL files? 

Best regards.


Stephen.