Update (5/18/2011): Looks like Freakonomics approves as well. Let the record show that I approved first 🙂
I approve: “I use the open-source program R to create the patterns.”
But, I’m not sure I approve of calling these distributions “evil.”
In case you were wondering, here are the commands to create the density plots for these “evil” distributions.
Erlang: dgamma. It’s a special case of the Gamma distribution. A special case of Erlang is the Chi-squared distribution.