Downloads crosswalks from https://www.census.gov/geographies/reference-files/time-series/geo/relationship-files.html. Adjusts land overlap area to ensure weights sum to 1.
pl_crosswalk(abbr, from_year = 2010L, to_year = from_year + 10L)the state to download the crosswalk for.
the year with the blocks that the data is currently tabulated with respect to.
the year with the blocks that the data should be tabulated into.
A tibble, with two sets of GEOIDs and overlap information.
if (FALSE) {
# Takes a bit of time to run
pl_crosswalk("RI", 2010, 2020)
}