Plot EC2 instance usage with Clojure and Incanter

Have you ever wondered which instance types you use most when dealing with Amazon’s EC2? I have, so I came up with a short Clojure/Incanter program to plot a nice chart like this:

EC2 usage plotted by #incanter (@liebke) on Twitpic

(full size image)

Here’s the code, if you have any feedback please leave a comment, this was the first time I used Incanter.