http://www.insightful.com/resources/doc/default.html Splus guides - quite useful, I think, for general approaches especially (free downloads) http://www.insightful.com/resources/biblio.html list of Splus books - too many! http://hesweb1.med.virginia.edu/biostat/s/doc/splus.pdf guide to Splus for SAS users (or anyone, really) and the other documents in CRAN contributed documents Jon Jonathan Baron, Professor of Psychology, University of Pennsylvania Home page: http://www.sas.upenn.edu/~jbaron -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._