&plot afigname='./d1990/sn1999dn_Ib/f1.ps' afile='./d1990/sn1990aa_Ic/dif/sn1990aa_1990_09_27.dif' './d1990/sn1990dn_Ib/dif/sn1999dn_1999_09_17.dif' idash=0,1, ifile=2 iformat=-1,-1,-1 ixlog=1 ! ixlog=0 xtick=-.2,-1. iylog=1 ! iylog=0 ytick=-1.,-5. scale=1.,1. ismooth=0 smooth_x=.00167,smooth_zone=1.d+30 title='\rm SN 1988L and SN 1990B spectra compared: spectrum Smallest DIFF1 pair' v_helio= ! A minus signs on the format statements prevent further shifting. xmin=3900. xmax=8200. ylabel='\rm Flux' ! ymin=.5 ymin=.5 ymax=2. itable=0 xytable=5100.,1.45 caption='\rm day -14.3' '\rm day -12.5' '\rm day -7.5' iputlabel=0 aputlabel= '\rm H\delta?' '\rm H\gamma' '\rm H\beta' '\rm HeI' '\rm H\alpha' '\rm CaII?' putlabel=4000.,1.15, 4300.,1.1, 4670.,1.05, 5625.,1.1, 6285.,.89, 7809.,1.09, /