Folks: Graphics afficianados might enjoy this link (although "conditional probability" is also mentioned!): http://news.yahoo.com/blogs/signal/republican-nomination-extends-march-candidates-face-weakening-odds-152347629.html Pay attention to the graph. Never thought I'd see the phrase "lowess trend" on Yahoo. It looks like the graphs could have actually been drawn in R. Does anyone no whether or not this is so? Cheers, Bert -- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm