st: create dummy variables for every 5 values

[Lynda Zhang <lzhang@hmdc.harvard.edu>]

I have a variable Year:
...
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
...

How do I create one dummy variable for each 5-year interval with one 
command.

Typically I can get it manually by generating one dummy at a time
gen year1=1 if year>=1991 & year<=1995
...

or using Recode:
gen yr=year
recode yr (1991/1995=1)(1996/2000=2)
tab yr, g(y)

Thanks a lot!
Lynda

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fn:Lynda Zhang
n:Zhang;Lynda
email;internet:lzhang@hmdc.harvard.edu
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