Get URL (without filename) for ACS 5-year summary file data

Returns first part of URL(s) of folders (on Census Bureau FTP site) with zip file(s) based on end year.

Usage

get.url.prefix.lookup.table(end.year)

Arguments

end.year

Optional end year for 5-year summary file, as character, like '2022'

Value

Returns character element that is first part of URL such as "https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/documentation/"

See also

get_acs_old(), get.lookup.acs(), get.lookup.file.name()