Join data to boundaries by (normalized) names — mn_join_by

Performs an exact join between a data frame and boundary polygons using normalized place names. Both sides are normalized via transliteration and lowercasing before joining.

Usage

mn_join_by_name(data, name_col, level = "ADM1", boundaries = NULL)

Arguments

data: Data frame with a name column.
name_col: Column in data that contains names to join on.
level: Boundary level, passed to mn_boundaries() if boundaries not provided.
boundaries: Optional pre-fetched boundaries.

Value

An sf object with joined data.

Examples

pop_data <- data.frame(aimag = c("Ulaanbaatar", "Darkhan-Uul"), pop = c(1500000, 100000))
sf_joined <- mn_join_by_name(pop_data, "aimag", level = "ADM1")