What is your preferred way to produce charts in a Ruby on Rails web application?

Question

I\'d like to add some pie, bar and scatter charts to my Ruby on Rails web application. I want want them to be atractive, easy to add and not introduce much overhead.

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Answer 1

The new Google Visualization appears to produce charts that are of more varied type, better looking and interactive than Google Graphs.

http://code.google.com/apis/visualization/