Dear all, After much trouble, I finally succeeded in preprocessing the cell cycle microarray compendium (I hope nothing went wrong...). We now have an expression dataset of 19937 genes on 518 experiments (no ratio's). I've put the stuff in the test_data directory of the segal project (dataset cc_data, regulator list ath_go_plus_cc_regulators.txt). Enjoy! Special thanks to Eric, Vanessa and Tine for their help! Steven -- ================================================================== Steven Maere, PhD Dept. of Plant Systems Biology Bioinformatics & Evolutionary Genomics research group VIB / Ghent University Technologiepark 927 B-9052 Gent BELGIUM tel: +32 9 331 3810 fax: +32 9 331 3809 email: stmae@psb.UGent.be http://www.psb.UGent.be http://bioinformatics.psb.ugent.be/ ==================================================================