I\'m having an issue with a JFreeChart overlaid graph. I\'m using JFreeChart 1.0.13. What I am trying to do seems like it was easier to do in earlier versions of JFreeChart?
I see you're adding a second data set and renderer to your plot, but you're forcing them to use the same range axis. Instead, give the plot a new NumberAxis for the range of the second data set.
As an aside, don't overlook the axis related example in the JFreeChart Demo, and don't underestimate the value of the JFreeChart Developer Guide.