% @(#)erase_long.hlq	17.1.1.1 (ESO-IPG) 01/25/02 17:53:23
%++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
%.COPYRIGHT  (c)  1993 European Southern Observatory
%.IDENT      erase_long.hlq
%.AUTHOR     02-AUG-93, IPG/ESO
%.KEYWORDS   MIDAS, help files, 
%.PURPOSE    On-line help file for the command: ERASE/LONG
%.VERSION    1.0  PB : Creation, 02-AUG-93
%----------------------------------------------------------------
\se
SECTION./LONG
\es\co
ERASE/LONG					   PB  02-AUG-93
\oc\su
ERASE/LONG  
	Interactive rejection of dispersion relation nodes.
\us\pu
Purpose:    
            Calibrated line positions (resulting from CALIBRATE/LONG) 
            are plotted in a pixel-wavelength space. By mean of the
            graphic cursor, positions can be interactively rejected.
            A new calibration can then be performed.
\up\sy
Syntax:     
            ERASE/LONG
\ys\sa
See also: 
            CALIBRATE/LONG, PLOT/RESIDUAL, PLOT/CALIBRATE, PLOT/DELTA,\\
            CALIBRATE/TWICE, PLOT/DISTORTION
\as\no
Note:       
            None
\on\exs
Examples:
\ex
            ERASE/LONG
\xe \sxe