Good Evening:
I have been trying to figure this one out but just can't make it work yet.
Is there a straightforward way to convert a grid object (such as an earthwide
or regional long-lat grid) generated using sp into a spatial polygon object
that I could then export as a shapefile. I want to be able to use the maptools
overlay function to assign locations to a grid and then color each grid area
based upon mean or other characteristics of the locations within each grid. I
also want to create a shapefile with attributes from each polygon saved in the
@data component. Please excuse me if this is a simple problem or has been
addressed previously by the list but I have not been able to find an answer in
previous posts.
Joe
[[alternative HTML version deleted]]
_______________________________________________
R-sig-Geo mailing list
[email protected]
https://stat.ethz.ch/mailman/listinfo/r-sig-geo