If your Rails application provides any kind of analytics related to particular data, the ability to generate charts is a very important function. Open Flash Chart provides a good interface for graphically representing your application’s data, and a few Ruby on Rails plugins allow you to include Open Flash Charts in Rails applications.
In his Java Boutique article, Saurabh Bhatia explains how to include Open Flash Charts in a Rails application using the stable, straightforward
PullMonkey plugin.