Infer Sequence file numbers based on ACS 5-yr filenames in folder

Helper function to look for unzipped csv files of estimates for American Community Survey (ACS) 5-year summary file data obtained from US Census FTP site, based on pattern matching, and infer seqfile numbers based on those filenames.

Usage

getseqnumsviafilenames(folder = getwd())

Arguments

folder

Default is current working directory.

Value

Returns a character vector of unique sequence file numbers

See also

read.concat.states() which uses this