Another plug for KaliedaGraph. I have used it for years and though it's
not 100% perfect, it's a hell of a lot better than DeltaGraph.
Igor is a powerful package that's meant for much more than graphing. It's
complex and has a fuller data-analysis emphasis, with recording etc. If
you just want graphs, stick with KaliedaGraph. If you want to buy into a
whole environment, consider Igor. Forget DeltaGraph for science.
ej
--
EJ Chichilnisky
ej at white.stanford.edu
