Margin

Normally the margins of the plot are automatically calculated based on tics and axis labels. These computed values can be overridden by the set margin commands. show margin shows the current settings.

Syntax:

        set bmargin {<margin>}
        set lmargin {<margin>}
        set rmargin {<margin>}
        set tmargin {<margin>}
        show margin

The units of <margin> are character heights or widths, as appropriate. A positive value always adds to the size of the margin. Omitting it causes gnuplot to revert to the computed values.