I was looking at options for drawing graphs with Perl to replace some manual Excel work.
At first I looked at GD::Graph as that's pretty much seen as the "standard" Perl graphing module. But, to be honest, the output really isn't up to the quality that you can get from Excel.
Then someone suggested that I look at SVG::TT:Graph instead. And it's great. I got some very useable graphs up in about 15 minutes (then, of course, I spent two hours "tweaking" them).
But if you want nice graphs - SVG::TT:Graph is the way to go.