NAME:
  nicplot
 PURPOSE:
  Create a summary plot of the contents of a NICMOS Grism data structure.
 DESCRIPTION:

 CATEGORY:
  Spectroscopy
 CALLING SEQUENCE:
  nicplot,obs
 INPUTS:
  obs - anonymous structure containing the NICMOS data.  This structure
           is initially created by NICINIT.PRO
 OPTIONAL INPUT PARAMETERS:

 KEYWORD INPUT PARAMETERS:

  PS - Flag, if set causes a postscript plot to be generated without changing
        the current display device.  Note, that if the device is already
        PS (postscript) then a postscript file will be created regardless of
        the setting of this flag.

  QUEUE - Print queue to send the postscript file to
            (default=don't send to printer).

 OUTPUTS:

 KEYWORD OUTPUT PARAMETERS:

 COMMON BLOCKS:

 SIDE EFFECTS:

 RESTRICTIONS:

 PROCEDURE:

 MODIFICATION HISTORY:
  Written by Marc W. Buie, Lowell Observatory, 1999 July 16