Displaying 1 result from an estimated 1 matches for "sp_out".
Did you mean:
sg_out
2010 Jun 05
1
Issues with unionSpatialPolygons on Ubuntu
...10.04 (lucid), and found that
unionSpatialPolygons() gives me the following error when trying to
combine polygons within a shapefile:
# Read in shapefile and merge polygons
foo <- readShapePoly("foo.shp", proj4string = CRS("+init=epsg:2272"))
IDs <- as.character(foo$ID)
SP_out <- unionSpatialPolygons(foo, IDs)
Error: isTRUE(gpclibPermitStatus()) is not TRUE
I've seen some posts about a package "rgeos" which may have something
to do with this error, and I downloaded the source from:
http://r-forge.r-project.org/R/?group_id=602
But when I've tried t...