how do I plot only the data below 10? everything is white for the 0-10 and 10-90 is black .. those functions which do this? was bad for such basic questions, but I started tinkering with R is 6 days -- View this message in context: http://r.789695.n4.nabble.com/Matrix-heatmap-tp4619084p4625021.html Sent from the R help mailing list archive at Nabble.com.