Ferret: fill colors between two lines

["Gao Rongzhen" <gaorz@xxxxxxxxxxx>]

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Hi, All

 

I have an annual mean time series ranging from 1789 to 1992. Now i want to add two vertical lines at t=1775 and t=1785, and fill coclors (gray) between them. I try to use fill_between.jnl, but failed. Can anyone give me some hints to get it? Thanks a lot.

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 define axis/t=1789:1992/npoints=204 t2
  define grid/t=t2 g2
  file/var=aa/grid=g2 d:\test.asc 
  set window/size=1/aspect=1.294

  def view/xlim=0.2,0.82/ylim=0.4,0.7 v11

  set view v11
  plot/nolabel/line=8/set aa[l=1:204]
  ppl axlabp -1,-1
  ppl tics .08,.12,.08,.12
  ppl yfor "(i3)"
  ppl yaxis -15,15,2.5
  ppl axlsze,0.2,0.2
  ppl txlsze,0.2
  ppl plot

  frame/file=test.gif

 

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GRZ

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Attachment: test.asc
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