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			       RS

    ROWSCALE multiplys ROWS in the input file by values in the ROWSCALE file.
	ie. :

	   OUT(jro,ipx) = IN(jro,ipx) * FLAT(ipx)
	FLATAV and TWILAVG may be constructed using FL or VP.
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 TYPE OPTIE                              27-SEP-1981 07:07:57.40
 >>>.RS(MAPI=1,MAPO=1,ROWS=1)                                             
 OPTION .RS
 OPEN FILE TO HAVE ROWS SCALED
 FILI=VOOLOB
 There are  11 maps in the file       
 Reading from the file
 2040 rows of   69 pixels in R4 format
 MAPI=1
 MAPO=1
 ROWI=1:2040
 SCAL=0
 OPEN FILE WITH SCALING FACTORS
 FILS=EXCUT
 There are   2 maps in the file       
 Reading from the file
   11 rows of 2040 pixels in R4 format
 MAPS=1
 ROWS=1
 SELECT SCALING METHOD
 	1	use scale factors as given
 	2	Normalise to central factor
 Def = 2
 METHOD=1
 ALL SET  ?
 OK=Y