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AW: st: counting the time of being in a specific state


From   Thomas M�hlmann <[email protected]>
To   <[email protected]>
Subject   AW: st: counting the time of being in a specific state
Date   Fri, 3 Sep 2004 19:21:40 +0200

Dear Edwin,

This is an excellent suggestion! Thanks a lot!

Greetings,

Thomas

-----Urspr�ngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]]Im Auftrag von Edwin Leuven
Gesendet: Freitag, 3. September 2004 14:45
An: [email protected]
Betreff: Re: st: counting the time of being in a specific state


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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