Bob's pick this week is Circular Statistics Toolbox (Directional Statistics) by Philipp Berens.
I remember lots of A-ha moments in college when I realized the significance of yet another application for Fourier transforms. For example, calculation of power spectral density in signal processing. The central limit theorem was another pleasant surprise. This submission stirred those memories: not unlike bumping into an old friend you haven't seen for a long time. Now all I need is a compelling problem that requires circular or directional statistics so I can truly internalize the value of these tools for myself.
Philipp first submitted this file in January 2007. There have been a number of review comments over the years. It is currently rated 4.4 (on the 5 point scale).
Downloads have averaged almost 9 per day over the past month as well. So others clearly appreciate it. I also appreciate that Philipp recently updated the submission in response to feedback from others. In addition, follow the Acknowledgements trail to see that Circular Statistics Toolbox (Directional Statistics) was inspired by Circular Cross Correlation which also inspired Fast Circular (Periodic) Cross Correlation. That's social computing. Keep up the great work, everyone.
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