BOX

        [GREG1\]BOX [Arg1  [Arg2  [Arg3]]]  [/ABSOLUTE]  [/UNIT  valid_unit]
    [/LABEL Pen] [/FILL pen0m]

    BOX puts axes around the plot region, labelling the lower and left.  The
    first  two  arguments  are used to modify the labelling of the lower and
    left axes respectively. They may take the values  P for Parallel  labels
    (default  for X axis), O for Orthogonal labels (default for Y axis) or N
    for No labels. A third argument can be specified to  indicate  that  the
    ticks  are  to  be IN or OUT of the box, or not drawn at all (NONE). BOX
    creates a segment named "BOX".

    The option /LABEL is used to specify a different pen  to  use  for  axis
    labelling. Creates a supplemetary graphic segment "LABEL".

    The option "/FILL pen_num" will fill the inside  of  the  box  with  the
    color  of  the pen pen_num. The last 16 pens (numbered 8-23) can receive
    arbitrary colors with  the  command  LUT/PEN.  Creates  a  supplementary
    graphic segment "FILL".

    BOX N N N makes a rectangle with the current pen, even  if  the  pen  is
    dashed.