Make polar histogram bins on cardinal axes
7 views (last 30 days)
Show older comments
Stephanie Reeves
on 21 Apr 2021
Edited: Scott MacKenzie
on 10 May 2021
I am making a polar histogram showing eye movement directions. I would like each bin to represent each tick rather than representing the directions between the ticks. It is correct at 0, but incorrect at 90, 180, and 270, as shown here. How do I change it so that the bins represent cardinal directions at 0, 90, 180, and 270?
My code is very simple, the line is simply: "polarhistogram(saccade.AngularDirections,15)" where saccade is a table, and AngularDirections is a column of numbers with different directions in radians.
Thank you in advance!
0 Comments
Accepted Answer
Scott MacKenzie
on 6 May 2021
Edited: Scott MacKenzie
on 10 May 2021
Consider specifying bin edges rather than the number of bins. If you want four bins centered at 0, 90, 180, and 270, then you need to specify five edges. In the example below, the edges are 0 90 180 270 360, but offset by 45 degrees. This gives you four bins centered at 0, 90, 180, and 270 degrees. Is that what you want?
% test data
y = 2*pi * rand(1,100);
edges = (0:90:360) + 45;
edges = deg2rad(edges);
polarhistogram(y, edges);
0 Comments
More Answers (0)
See Also
Categories
Find more on Data Distribution Plots in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!