[Haskell-cafe] Chart plotting libraries

I'd like some free software to help me plot charts like the one from the ray tracer language comparison: http://www.ffconsultancy.com/languages/ray_tracer/results.html I was using Mathematica but its stopped working and an upgrade is £2,000. Are there Haskell bindings to any free libraries or even Haskell implementations that would make something like this painless? There isn't anything for OCaml (that I'm not still writing ;-) so this might be a good opportunity to force me to do a little more Haskell. :-) -- Dr Jon D Harrop, Flying Frog Consultancy Ltd. http://www.ffconsultancy.com/products/?e