Get the name of the lowest ctry admin level
getCtryShpLowestLyrNames(ctryCodes = NULL,
gadmVersion = pkgOptions("gadmVersion"),
gadmPolyType = pkgOptions("gadmPolyType"), custPolyPath = NULL)
character
ctryCodes the ctryCodes of interest
The GADM version to use
The format of polygons to download from GADM
Alternative to GADM. A path to a custom shapefile zip
character string The name of the lowest admin level