R (>= 2.7.0), sp, maptools, foreign, fields, spam, maps
R (>= 2.10.0), sp, maptools, foreign, fields, spam, maps
R (>= 2.10.0), sp, maptools, foreign, fields, spam
fields, spam, maps, RColorBrewer, classInt, cshapes
fields, spam, maps, RColorBrewer, classInt, cshapes, ncdf
fields, spam, maps, RColorBrewer, classInt, cshapes, ncdf,
raster
RColorBrewer, classInt, cshapes, ncdf, raster
rgdal, rworldxtra, RColorBrewer, classInt, cshapes, ncdf,
raster