All, Is there a function in R similar to "Join attributes from a table" in ArcGIS 9x? I am trying to join a SpatialPolygonsDataFrame (created from an ESRI shapefile) to a data.frame which has the same unique ID, but contains some missing values. As a result of the missing data issues, neighbor objects created from the SpatialPolygonsDataFrame -- particularly contiguity neighbors that require polygons to remain intact -- are of different length than the number of rows in the data.frame and spatially lagged terms cannot be created.
The merge() command from the base package allows one to join information from the two objects, but treats both inputs as standard data.frame objects and produces a data.frame as the joined output. What I need is a function that yields a SpatialPolygonsDataFrame object as the output. Any help would be greatly appreciated. Thank you in advance, Yuri --- Yuri M. Zhukov Ph.D. Student Department of Government Harvard University [email protected] _______________________________________________ R-sig-Geo mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-geo
