Pin down a file on disk from four parameters. — locate_one_file • stats19

Pin down a file on disk from four parameters.

Usage

locate_one_file(
  filename = NULL,
  data_dir = get_data_directory(),
  year = NULL,
  type = NULL
)

Arguments

filename: Character string of the filename of the .csv to read, if this is given, type and years determine whether there is a target to read, otherwise disk scan would be needed.
data_dir: Where sets of downloaded data would be found.
year: Single year for which file is to be found.
type: One of: 'Collision', 'Casualties', 'Vehicles'; ignores case.

Value

One of: path for one file, a message More than one file found or error if none found.

Examples

# \donttest{
locate_one_file()
#> character(0)
locate_one_file(filename = "Cas.csv")
#> character(0)
# }