While in grad school, I learned to use gnuplot to create line/bar charts. It works well for command-line scripted data processing, so long as you’re good at discerning arcane commands.

Looking for Java-based charting, I found JFreeChart. I’ve only spent a couple hours with it, but it looks to be an impressive library. It’s not simple, but appears to be well designed.

I hope to become more adept at JFreeChart. So far, I’ve only redeveloped my Potential RPG Source Lines of Code (SLOC) chart (originally processed by gnuplot):

Can anyone offer other Java-based charting library suggestions? Any opinions of JFreeChart?

Disclaimer: I’m not endorsing any product. These are just my personal observations.

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