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

Google charts is very nice, but it's not a rails only solution. You simple use the programming language of your choice to dynamically produce urls that contain the data and google returns you back a nice image with your chart.

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