C.12.1. - Input
The current points are sent to the subprocess with the x and y values on one line, with one line per data point. If error-bar and/or line-control modes are on, the corresponding values also are included on the line. If there are no current points, a single newline is written to the command subprocess.
If the subprocess is not interested in the current data, you can save time and system resources by erasing the current data using the
gd 15
command.