Help System (web edition)

FRAMES=<list_of_frame_specifications> 
gives a list of extra frames (boxes) to be drawn in the current graph.
Each member of this list is a word (name of the frame) and any such
a frame must be given in the form

   <name_of_the_frame>=<xhome>,<yhome>,<width>,<height>,<fill> 

where (xhome,yhome) are the coordinates of the left-bottom corner of
the frame and <width> and <height> give the size of of the frame. All
the values are in plotting units (not in user coordinates).
<fill> is optional and gives the fill index. The default is no fill.

   P = More information on plotting