Recalculate area in km² for an sf object — pk_area • pkmapr

Computes accurate areas by reprojecting to UTM Zone 42N before measurement. Returns the input object with area_km2 added or updated.

Usage

pk_area(x)

Arguments

x: An sf object with polygon geometries.

Value

Returns the input sf object (class "sf" and "data.frame") with the

area_km2: Numeric column added or updated, representing the area of each polygon in square kilometres.

Examples

districts <- get_districts()
districts <- pk_area(districts)
head(districts$area_km2)
#> [1]  692.5272 1210.7768  682.8134  550.2982 1612.3079  898.8126