gruff is all right--the killer app doesn't seem to quite exist. Google for it, maybe it does now :) You can also call gnuplot, if you desire. -Roger Kenneth McDonald wrote: > There are, of course, a plethora of choices for doing graphing in Ruby > and for JRuby, in Java. I'd be grateful for opinions on the "best" ones, > and why people think they are the best. > > Thanks, > Ken -- Posted via http://www.ruby-forum.com/.