All, > > Sounds like curve clustering with nonlinear (or functional data) > regression models. Simple to fit in R, http://www.r-project.org/. > Ahh good - that's microarrays solved then... :o} Later, Andy ------------- Dr. Andy Law -------------------- Head of Bioinformatics - Roslin Institute Unfortunately, legal niceties require me to add the following to this message... The information contained in this e-mail (including any attachments) is confidential and is intended for the use of the addressee only. The opinions expressed within this e-mail (including any attachments) are the opinions of the sender and do not necessarily constitute those of Roslin Institute (Edinburgh) ("the Institute") unless specifically stated by a sender who is duly authorised to do so on behalf of the Institute.