Assume that the following script is in a file called "multi.plot".

    data test.dat
    xcolumn 1
    ycolumn 2
    ydimension 3
    xlabel Angle
    ylabel COS( Angle )
    plot

    yrescale
    ylabel SIN ( Angle )
    noxlabel
    xnumbersize 0.
    plot
    title Two Panels

To make a graphic, you would type

plotl multi.plot

which would produce a graph like: