&plot
 afigname='/home/jeffery/public_html/aalib/052_Ibc/figure2b.ps'
 afile= './d1990/sn1993j_IIb/dif/sn1993j_1993_04_15.dif'
       './d1990/sn1993j_IIb/dif/sn1993j_1993_04_15.p2.duf'
       './d1990/sn1993j_IIb/dif/sn1993j_1993_04_15.p4.duf'
       './d1990/sn1993j_IIb/dif/sn1993j_1993_04_15.u.duf'
 idash=0,3,2,1
 idif=1,1,1,1       ! The dif files take a different read-in. 
 ifile=4
 iformat=-1,-1,-1,-1
 ixlog=1
 ! ixlog=0
 xtick=-.2,-1.,
 iylog=1
 ! iylog=0
 ytick=-.2,-1.
 scale=1.,1.2,.8,1.      ! Scaling 2 and 3 shows there are three spectra, but with the same scaling one can only see one no matter where one looks.
 scale=1.,1.,1.,1.      ! Scaling 2 and 3 shows there are three spectra, but with the same scaling one can only see one no matter where one looks.
 ismooth=0
 smooth_x=.00167,smooth_zone=1.d+30
 title='\rm ' 
 v_helio=-39.,-39.,-39.,-39.   ! A minus signs on the format statements prevent further shifting.
 xmin=1600.
 xmax=10000.
 ylabel='\rm Locally Normalized Flux'
 ymin=.7
 ymax=1.65
/