Create a SpatialPolygonsDataFrame for US State Legislative Districts of a specified state
convertStateLegislativeDistricts(
stateCode,
house = "Upper",
nameOnly = FALSE,
simplify = TRUE
)
Name of the dataset being created.
ISO 3166-2 alpha-2 state code.
Character specifying either "Upper" or "Lower" house.
Logical specifying whether to only return the name without creating the file.
Logical specifying whether to create "_05", _02" and "_01" versions of the file that are simplified to 5%, 2% and 1%.
A US State Legislative District shapefile is downloaded and converted
to a SpatialPolygonsDataFrame with additional columns of data. The resulting
file will be created in the spatial data directory which is set with
setSpatialDataDir()
.
https://www.census.gov/geographies/mapping-files/time-series/geo/cartographic-boundary.html
setSpatialDataDir