File Exchange Pick of the Week

October 16th, 2009

Circular Statistics Toolbox (Directional Statistics)

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.

Comments?


Get the MATLAB code

Published with MATLAB® 7.9

Leave a Reply

Wrap code fragments inside <pre> tags, like this:

<pre class="code">
a = magic(3);
sum(a)
</pre>

If you have a "<" character in your code, either follow it with a space or replace it with "&lt;" (including the semicolon).


Bob, Brett & Jiro share their favorite user-contributed submissions from the File Exchange.

  • Zach: Hi Doug and Les, I didn’t have a lot of time to mess with this, but I did find a work-around. I plotted...
  • hamed: k
  • Les: @Zach This isn’t exactly what you are looking for but at least it puts all three parameters on the same...
  • Zach: Thanks for your suggestions Doug. I’ll give that a shot and see what happens. I’ve seen many of...
  • Doug: @Zach, I would say to use plotYYY, because that is close to what you want, but using depth as Y makes sense....
  • Doug: @Teja, I think this will work: http://www.mathworks .com/access/helpdesk /help/techdoc/ref...
  • Gify: merry christmas :) nice christmas tree! Regards, Janet Gify
  • Teja: Dear Doug Is there anyway to plot a surface from nonuniform data without meshgrid and griddata? Basically i...
  • Zach: I’m working with geophysical data, so I’d like to produce a depth profile. The y-axis would be...
  • Doug: @Ashok First, please do not use variable names that are MATLAB commands (std and mean). Second, p(j) should be...

These postings are the author's and don't necessarily represent the opinions of The MathWorks.