plptex:

Synopsis: Place text in the current sub-plot.

Syntax: plptex ( TEXT, X , Y , DX , DY , JUST )

Description:

	Place TEXT in the plot window.

	X: Specify the X coordinate for text placement.
	Y: Specify the Y coordinate for text placement.
	DX: X + DX specifies the X orientation of the text.
	DY: Y + DY specifies the Y orientation of the text.
	JUST: Specifies the position of the string relative to its
	      reference point. If JUST=0, the reference point is at
	      the left  and if JUST=1 it is at the right of the
	      string. Other values of JUST give intermediate
	      justifications. 

	Since plptex uses the plot-data coordinates for text
	placement, plptex must be called AFTER the plot is created.
