Hi all, Dear Dr. Wheeler, I am trying to use the lmPerm package to perform multiple regression on microarray data with certain empirical variables associated with treatments of the experiment. In order the circumvent the very conservative multiple test corrections such as Bonferroni and BH, I try to use permutated probabilities to assess associations. In addition to mu previous posting I have another question: Why is lmp() not giving an estimated intercept for a linear regression model (like in lm())? kind regards, Thierry -- Thierry K.S. Janssens Vrije Universiteit Amsterdam Faculty of Earth and Life Sciences Institute of Ecological Science Department of Animal Ecology, De Boelelaan 1085 1081 HV AMSTERDAM, The Netherlands Phone: +31 (0)20-5989147 Fax: +31 (0)20-5987123 thierry.janssens at ecology.falw.vu.nl Thierry Janssens <thierry.janssens at ecology.falw.vu.nl <mailto:thierry.janssens at ecology.falw.vu.nl>> Vrije Universiteit Amsterdam Animal Ecology -- Thierry K.S. Janssens Vrije Universiteit Amsterdam Faculty of Earth and Life Sciences Institute of Ecological Science Department of Animal Ecology, De Boelelaan 1085 1081 HV AMSTERDAM, The Netherlands Phone: +31 (0)20-5989147 Fax: +31 (0)20-5987123 thierry.janssens at ecology.falw.vu.nl