[R] Bubble Plot with Pie Charts

[Werner Wernersen]

Hi there!

I have seen that someone had this question some years
before, but there 
was only a rough answer to it and I was wondering if
actually someone 
was able to accomplish it or maybe even wrote a
function...

How do you make a bubble plot where you have pie
charts instead of bubbles?

I have a geographic map and need to plot
attribute-sized pie charts 
representing a second attribute at geographic
coordinates.

Thanks a lot for any help!

Regards,
  Bob