2009/7/20 Markus Mühlbacher <muehliman at yahoo.com>: > Gives the attached image. Again I am missing the white diagonal. Is there some kind of sorting that I do not consider? Maybe col=c("white",heat.colors(100)) will do the trick? -- Michael Knudsen micknudsen at gmail.com http://lifeofknudsen.blogspot.com/