Get Admin 1 Geometries for SSA Countries

Fetches Admin 1 (state/province/region) boundary geometries for Sub-Saharan African countries. Uses GADM as the primary source with Natural Earth fallback. Automatically harmonizes region names and handles special cases.

Usage

get_admin1_geo(country_ids = NULL)

Arguments

country_ids

Character vector of 2-letter DHS country codes. If NULL, uses ssa_codes().

Value

An sf object with columns: admin0, admin1_name, geometry (MULTIPOLYGON in EPSG:4326).

Examples

if (FALSE) { # \dontrun{
geo <- get_admin1_geo(country_ids = c("KE", "NG"))
plot(geo["admin1_name"])
} # }