Gruff 
by GEOFFREY GROSENBACH
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Description
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The Gruff Graphing Library is a project to make beautiful graphs with Ruby. Can be used alone or with Ruby on Rails.
Blog Post
Beautiful Bar Charts With Ruby And Gruff (Easy And Simple) (blog.nikosd.com)
Charts And Graphs In Ruby On Rails (tomcopeland.blogs.com)
Gruff Graphs For Ruby (nubyonrails.com)
Gruff Graph 0.0.7 And Rails (undefined.com)
Screencast
None, why not add something?
Book
None, why not add something?
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