Plotting a bar graph on a circular axis

Could anyone point me in the direction of being able to produce a bar graph on a circular axis like in the picture attached? (Not asking for complete code, just a pointer).

Answer 1

[John D'Errico]

Just to make up some data...

n = 100;
theta = linspace(0,2*pi,n);
r = 10 + rand(1,n);
r = [r;r+1+rand(1,n)];

Ok. now I have some data. Just call polar.

polar([theta;theta],r,'-')

[Harrison Chong]

Thank you for answering! I guess I was stuck on the fact that I wanted a bar graph, but these lines work just fine.