See; https://gadm.org/
GADM is a spatial database of the world's adminstrative boundaries for use in GIS and similar software. Administrative areas in this database are countries and lower level subdivisions such as provinces, departments, cantons, etc.
With GADMTools, a wrapper for GADM shapefiles, you can easily manipulate, assemble, and create subsets of these objects.
GADMTools can use 2 shapefile formats,SpatialPolyonsDataFrame and Simple Features (SF), both provided by GADM as .rds files.
NB: the SF format is supported only from version 3.5 of GADMTools.
| Package: | GADMTools |
| Type: | Package |
| Version: | 3.9-1 |
| Date: | 2021-08-04 |
| License: | GPL-3 |