Description
Set the data filename of a dataset (with the path to its position, as given by the user).
The data filename may contain a header in the first row, containing the list of names of the variables,
in the same order as in the header file.
After the header, if present, the file contains a data.frame with the observations, one item per row.
Usage
data.file(x) <- value
"data.file"(x) <- value