Hi list i got somehow lost as a beginner with BioC.. i have data from marray experiment on 2 conditions, 4 samples each, done on Moe430A and Moe430B chips - so 16 .cel files total and i want to know whether there is any simple way to put A and B together to obtain one table with expression values annotated with Mouse4302.db or so.. i guess i have to preprocess the A's and B's separately (?) so after gcrma i get esetA and esetB but then i'm lost i'll be grateful for any suggestions thank you matyas