>
> >
> > data set looks like
> >
> > var1 var2 var3
> >
> > 80 30 1
> > 75 30 1
> > 85 30 1
> > 76 33 1
> > 78 33 1
> > 75 33 1
> > 80 29 2
> > 82 29 2
> > 83 29 2
> > ...................
> >
> > Say, var1 is an indicator measured at 3 different times of each
> > individual. var2 is age, var3 indicates "group"
> >
> > I want to generate a variable to indicate every three of the var1
> > belongs to the same person, and a variable indicating three
> > different times for the same person , which would be looked like:
> >
> > var1 var2 var3 Var4 Var5
> >
> > 80 30 1 1 1
> > 75 30 1 1 2
> > 85 30 1 1 3
> > 76 33 1 2 1
> > 78 33 1 2 2
> > 75 33 1 2 3
> > 80 29 2 3 1
> > 82 29 2 3 2
> > 83 29 2 3 3
> > ................... ..........
What Stata Command I should use then?? Thank you very much!!
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