Tics

By default, tics are drawn inwards from the border on all four sides. The set tics command can be used to change the tics to be drawn outwards on the left and bottom borders only. This is useful when doing impulse plots.

Syntax:

        set tics {<direction>}
        show tics

Where <direction> may be in, out or nothing (which is the same as in).

See also the set xtics and set ytics command for more control of tic marks.