file (with open-modifier (& open-modifier)*)*or
(binary-mode | text-mode)? (buffered | unbuffered)? file string-expression
file retrieves the contents of a named file.
In certain limited cases, the file can be read in smaller chunks, allowing very large files to be processed
without requiring huge amounts of computer memory. These cases occur whenever the
file expression is
used in the
string expression of any of the following actions alone, or attached by
join) to other
fileexpression must be the second argument),
set(when performed on a
set file, and
file can also be used as the entire
string expression argument of one of the following
using input as.