&plot
 afigname='./d1990/sn1990n_Ia/f_Si_II.ps'
 afile='./d1990/sn1990n_Ia/dif/sn1990n_1990_06_26.dif'
       './d1990/sn1990n_Ia/dif/sn1990n_1990_06_28.dif'
       './d1990/sn1990n_Ia/dif/sn1990n_1990_07_03.dif'
 idash=1,0,2
 ifile=3
 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 1990N spectra:  days -14.3, -12.5, -7.5 premax' 
 v_helio=982.,982.,982.,   ! A minus signs on the format statements prevent further shifting.
! xmin=3300.
 xmin=5000.
 xmax=8200.
 ylabel='\rm Flux'
! ymin=.5
 ymin=.65
 ymax=1.5

 itable=3
 xytable=5100.,1.45
 caption='\rm day -14.3'
         '\rm day -12.5'
         '\rm day -7.5'

 iputlabel=2
 aputlabel=
        '\rm SiII'
        '\rm CaII'
        '\rm H\beta'
        '\rm HeI'
        '\rm H\alpha'
        '\rm CaII?'
 putlabel=6000.,1.1,
          7900.,1.4,
          4670.,1.05,
          5625.,1.1,
          6285.,.89,
          7809.,1.09,
/