Plot mean of variable on a map
Aleksandr Andreev wrote:
I would like to plot the price on the map in a "heat" style plot. The natural way to do this by computing a local average price for a specified neighborhood around (Lat, Lon) (say, of 0.01 of a degree across -- I have enough data to make this as fine as I need). Does anyone have suggestions on the best way to do this?
I had the same problems a few months ago. See http://thread.gmane.org/gmane.comp.lang.r.geo/9055 for some ideas on how to solve it.
Karl Ove Hufthammer