How to refresh the data in polar plot

I wanna refresh the data of polar plot with new data set.

How can I use set or refreshdata in the program?

I know how deal this with Cartesian plot, plot command.

for example:

x = linspace(0,8);
y = sin(x);
figure
h = plot(x,y);

h.XDataSource = 'x';
h.YDataSource = 'y';

y = sin(x.^3);
refreshdata

Answer 1

[Azzi Abdelmalek]

x = linspace(0,8);
y = sin(x);
[theta,rho] = cart2pol(x,y)
h=polar(theta,rho,'--r')
h.YDataSource = 'y';
y = sin(x.^3);
refreshdata

[Tharindu Weerakoon]

Thanks Azzi. Done it.

[Robert]

really not a good way to do this but i have yet to find a better one