% @(#)plot_lyma.hlq	17.1.1.1 (ESO-IPG) 01/25/02 17:16:05
% @(#)plot_lyma.hlq	8.1.1.3 (ESO-IPG) 12/5/94 17:42:55
% @(#)plot_lyma.hlq	8.1 (ESO-IPG) 11/28/94 10:28:15
%++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
%.COPYRIGHT  (c)  1993 European Southern Observatory
%.IDENT      plot_lyma.hlq
%.AUTHOR     PB, IPG/ESO
%.KEYWORDS   MIDAS, help files, 
%.PURPOSE    On-line help file for the command: PLOT/LYMAN
%.VERSION    1.0  23-NOV-94 : Creation, PB
%.VERSION    2.0  22-NOV-95 : On line parameters, AF
%----------------------------------------------------------------
\se
SECTION./LYMAN
\es\co
PLOT/LYMAN					      23-NOV-94  PB
\oc\su
PLOT/LYMAN  [spectrum] [lamcen1,..] [size1,..] [label1..] [session]
	    Plots a spectrum in the FIT/LYMAN fashion
\us\pu
Purpose:    
	    Plots a spectrum table at different wavelengths, on a multiple
            window in the FIT/LYMAN fashion.\\
	    This command is designed to provide:\\
	    a) faster plotting than the PLOT/TAB one, which is rather
		slow when used for huge data;\\
	    b) plotting a spectrum table using a setup defined in FIT/LYMAN.

\up\sy
Syntax:     
            PLOT/LYMAN [spectrum] [lamcen1,..] [size1,..] [label1..] [session]
 \\
\ys\pa
	    spectrum = spectrum table to be plotted\\
			Default is the SPECTAB keyword.	
 \\
\ap\pa
	    lamcen   = central wavelenghts for each plot window, separated by 
    		        commas.
			Default are the last plotted wavelengths, as stored
 			in LYPAR.tbl
 \\
\ap\pa
	    size     = sizes of each plot window, separated by commas. 
                        If only one value is specified, this is assumed
			for all windows.
			If [lamcen1,..] is specified, default is 10 Angstroms.
			Otherwise, default are the sizes stored in LYPAR.tbl
 \\
\ap\pa
	    label    = labels of each plot window, separated by commas. 
                        If only one value is specified, this is assumed
			for all windows.
			If [lamcen1,..] is specified, default is no label.
			Otherwise, default are the sizes stored in LYPAR.tbl
 \\
\ap\pa
	    session =  FIT/LYMAN session to load.
			Defalut is current session as defined in the LYPAR 
			table.
			This parameter overrides the previous ones.
 \\
\ap\sa
See also: 
	    FIT/LYMAN,CURSOR/LYMAN,PLOT/REDSHIFT

\as\no

	    SET/GRA options has no effect on this command. 
	    Other options for the graphic set-up may be changed from
     	    the FITLYMAN program
 \\
\on\exs
Examples:
\ex
            PLOT/LYMAN  
	        Plots the last spectrum fitted.
\xe\ex
            PLOT/LYMAN emmispe 5000,5100 10,15 Lya,Lyb
            	Plots the spectrum emmispe (FITLYMAN format) on two windows, 
                at wavelengths 5000 and 5100 A and large 10 and 15 A,
                respectively. First plot is labeled "Lya1", the second "Lya2"
\xe\ex
            PLOT/LYMAN spec2 ? ? ? ? MgII
            	Plots the spectrum spec2 at the wavelengths specified
		by a session called MgII, previously saved within FIT/LYMAN.
\xe \sxe