Description Usage Arguments Value Examples
Pin down a file on disk from four parameters.
1 2 |
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: 'Accidents', 'Casualties', 'Vehicles'; ignores case. |
One of: path for one file, a message More than one file found
or error if none found.
1 2 | locate_one_file()
locate_one_file(filename = "Cas.csv")
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