Hi, I'm new to the mailing list and to R/limma so please be gentle. I found a previous posting (Sept. 2007 - 'different gal files using limma') on how to deal with two gal files in limma but is it possible to handle > 2 gal files? In short, can you cbind(MA1, MA2, MA3) ? Regards, Mark ****************************************** Dr Mark Alston, Computational Biologist, Institute of Food Research, Norwich Research Park, Colney, Norwich NR4 7UA, UK. Tel +44 (0)1603 251432 e-mail mark.alston@bbsrc.ac.uk www.ifr.ac.uk www.foodandhealthnetwork.com www.ifr.ac.uk/edisclaimer ****************************************** [[alternative HTML version deleted]]