Change circular histogram scale

Hi,

I plot couple of circular histograms using circ_plot from Circular Statistics Toolbox for Matlab ( http://www.jstatsoft.org/v31/i10) and I would like to set the same histogram scale for different plots. Is it possible?

Thanks

Answer 1

[Grzegorz Knor]

circ_plot uses standard matlab rose function. Unfortunatelly there is no 'rlim' (something like xlim) property. You can fix it by simple trick, just plot polar(0,rmax,'-k') before you use circ_plot, where rmax is something like 'rlim':

rmax = .1;
%   Examples:
figure
polar(0,rmax,'-k')
hold on
alpha = randn(60,1)*360;
circ_plot(alpha,'hist',[],12,true,true)
hold off

figure
polar(0,rmax,'-k')
hold on
alpha = randn(120,1)*360;
circ_plot(alpha,'hist',[],20,true,true,'linewidth',2,'color','r')
hold off

figure
polar(0,rmax,'-k')
hold on
alpha = randn(160,1)*360;
circ_plot(alpha,'hist',[],20,true,true,'linewidth',2,'color','r')
hold off