Dear List members:

I have plotted a  SpatialPointsDataFrame (originated from GWR estimation)
using spplot function. I need to add
county boundaries(a SpatialPolygonsDataFrame ) of the points where
they belong to. I can plot these two spatial data frame separately but how
can I show the spplot of SpatialPointsDataFrame which shows the value of
the points in space and plot of a SpatialPolygonsDataFrame which
represent county boundaries at one plot.


Thanks in advance

Roosbeh
Department of Civil and Coastal Engineering
PhD student University of Florida

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