On Fri, 3 Sep 2004, Edwin Leuven wrote:
id state year count
101 4 1994 1
101 4 1995 2
101 4 1996 3
101 3 1997 1
102 1 1994 1
102 1 1995 2
102 2 1996 1
102 3 1997 1
103 4 1994 1
103 2 1995 1
103 4 1996 1
bysort id state (year): g count = _n
i guess i was too quick: 103 poses a complication
. bysort id: g x= sum(s!=s[_n-1])
. bysort id x: g count = _n
should work
ed.
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