coordinates
matrix with columns named 'x' and 'y'.
The columns specify x and y coordinates on the GADM map.
These will be mapped to region names, with the resolution
specified by the resolution parameter. For instance:
coordinates <- cbind( x = c(24.9375, 24.
map
Map identifier. When the full GADM-URL has the
form "http://gadm.org/data/rda/FIN_adm2.RData", this
variable contains the part "FIN_adm". For further map
identifiers, see http://gadm.org