Dear Ben Bolker, searching for a R code able to do the CPCA I found a message by you on https://stat.ethz.ch/. In that message you said you have something I am looking for. Would you share with me? I ma stuck with a commercial software (GOLPE) that is not developed anymore, therefore I'd like to try to use R for the calculations I need. Looking forware for a reply from you Rino
++--------------------------------------------++ || Dr. Rino Ragno || || Dip. di Chimica e Tecnologie del Farmaco || || Facolta' di Farmacia || || Universita' degli Studi di Roma "Sapienza" || || P.le Aldo Moro, 5 - 00185 - Roma/Italia || || PO BOX 36 ROMA 62 || || Phone: || || Office/Lab +39-06-49913937/152 || || Fax: || || Dpt +39-06-491491 || || Office +39-06-49913627 || || E-mail: rino.ragno at uniroma1.it || || WWW: http://www.rcmd.it || ++--------------------------------------------++