Prepare downloaded FARS files for use
prep_fars(y, wd, rawfiles, prepared_dir, states)Produces six files: yyyy_flat.rds, yyyy_multi_acc.rds, yyyy_multi_veh.rds, yyyy_multi_per.rds, yyyy_events.rds, and codebook.rds
year, to be passed from prep_fars
working directory, , to be passed from prep_fars
dataframe translating filenames into standard terms,
to be passed from prep_fars
the location where prepared files will be saved,
to be passed from prep_fars
(Optional) Inherits from get_fars()