Calculates areas of tigris state, county, and military geometry (polygons) in units of square meters, square kilometers, square miles. It appends these columns onto the input tigris tibble (of either state, county, or military).

tigris_calc_areas(tigris_tbl)

Arguments

tigris_tbl

(sf) : Processed tigris sf tibble already projected to CRS 4326

Value

(tibble): The input tigris sf tibble with 3 additional columns area calculations appended to it.