I don't understand Q.2.
Q.1 I read as saying that you don't want observations once you have
observed -event == 1-. I wouldn't necessarily -drop- them; I would just
set them on one side.
The time when -event- is 1 -- assuming that that occurs at most once in
each panel -- can be put in a variable by
egen whenone = total(time * (event == 1)), by(id)
Note that if -event- is never 1, then -whenone- will be 0.
Then you might wish to select
... if time <= whenone | whenone == 0
-- or whatever makes sense in this territory.
Nick
[email protected]
Anders Ryom Villadsen
I'm a relatively new Stata user doing discrete event history models
with two questions regarding data handling. I have browsed manuals and
the list archive but cannot seem to find an answer to my questions that
works.
My data looks like this.
id time event indep1 .....
1 1 0 1
1 2 0 0
1 3 1 0
1 4 0 0
etc.....
1) How do I drop the observation for time 4 (after org1 has 'failed')
and it should no longer be part of my cloglog or logit models?
2) I want my indep var to work for two periods. How do I do that without
making it work for period 3?
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