Download external data for a module if not already present in the module
directory or if there is a checksum mismatch indicating that the file is not
the correct one.
Usage
downloadData(module, path, quiet)
"downloadData"(module, path, quiet)
"downloadData"(module)
"downloadData"(module, quiet)
"downloadData"(module, path)
Arguments
module
Character string giving the name of the module.
path
Character string giving the path to the module directory.
quiet
Logical. This is passed to download.file. Default is FALSE.