As a high-level plotting function, by default polarbubblechart will reset most of the properties of the polaraxes to their defaults before plotting. This is described on the documentation pages for the hold and newplot functions. Using some sample data from the polarbubblechart documentation page:
Without HOLD
pax = polaraxes('ThetaZeroLocation', 'bottom');
pax.ThetaZeroLocation
th = linspace(0,2*pi,10);
r = rand(1,10);
sz = rand(1,10);
polarbubblechart(th,r,sz);
pax.ThetaZeroLocation
If you tell MATLAB to hold on (or manually set the polaraxes property NextPlot to 'add' or 'replacechildren') then polarbubblechart won't reset the properties.
With HOLD
figure
pax = polaraxes('ThetaZeroLocation', 'bottom');
pax.ThetaZeroLocation
pax.NextPlot % See the newplot documentation page for an explanation of 'replace'
hold on
pax.NextPlot % and an explanation of 'add'
th = linspace(0,2*pi,10);
r = rand(1,10);
sz = rand(1,10);
polarbubblechart(th,r,sz);
pax.ThetaZeroLocation
Since the NextPlot property value was 'add' when I called polarbubblechart MATLAB will "not delete existing plots or reset axes properties before displaying the new plot."
