check_dl_file: Verify and download data files
Description
Checks if local data files as defined in master file exist and match MD5 hash. Downloads data if necessary.
Usage
check_dl_file(master_file, fname = NULL, md5check = TRUE,
dest = cache_get_dir())
Arguments
master_file
Character path to master file
fname
Character vector of specific file names to check
dest
Character path to download destination