This is achieved by determining the units (e.g., Census block, district, etc.) for which each voter's address lies within.
merge_voter_file_to_shape(
voter_file,
shape_file,
crs = NULL,
coords = c("lon", "lat"),
voter_id = "voter_id"
)The voter file with unit information attached.
A dataframe denoting the voter file. If it is not a geometry dataframe, it will be converted to one.
The shapefile for the region, as an sf object.
The PROJ4 string or int for the coordinate reference system.
The columns, as a list, that refer to the longitude and latitude.
The column for the Voter ID.
This function assumes that the sf package was used to read in the shape files.