R-gurus, I'm looking for (a) clustering method(s) (package(s)) that allow users to add constraints. I would like to be able to use a currently existing package and to include constraints that can be passed as functions of the data. If that's not possible, can someone recommend a package that would be easiest to hack on for a trial? Thanks, Jeff. -- Forest Informatics, Inc. PO Box 1421 Corvallis, Oregon 97339-1421