log4p

Gruff is a charting library for Ruby which can be used alone or with Ruby on Rails. I tried using it a couple of times, but couldn’t get it to work. The error was non-informative at best:

• uninitialized constant Gruff (NameError)
• NoMemmoryError

After going over the following steps:

1. build and installed ruby 1.8.4 from source
2. downloaded ruby-zlib-0.6.0 and installed
3. downloaded and installed rubygems-0.8.11
4. intalled imagemagick using apt
5. installed imagemagick dev packages (including c++) using apt (!)
6. installed rmagic using gem
7. installed gruff using gem

I actually got it to work!