Error using unionSpatialPolygons
I think this will do it. I was looking for a quick way to do this without involving a shape file but your suggestions is the clean/robust way. Thanks. Ariel ----- Ariel Ortiz-Bobea PhD Candidate in Agricultural & Resource Economics University of Maryland - College Park -- View this message in context: http://r-sig-geo.2731867.n2.nabble.com/Error-using-unionSpatialPolygons-tp7580881p7580886.html Sent from the R-sig-geo mailing list archive at Nabble.com.