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Re: st: predict y | y not observed after heckman
From
Maarten buis <[email protected]>
To
[email protected]
Subject
Re: st: predict y | y not observed after heckman
Date
Tue, 1 Feb 2011 11:02:43 +0000 (GMT)
--- On Tue, 1/2/11, Florian Wakolbinger wrote:
> I found "predict, ycond", which produces the prediction
> conditional on y being observed. However, there seems
> to be no command for a prediction conditional on y being
> NOT observed.
>
> Is it necessary to calculate this "by hand", or is there an
> alternative command that does this?
In that case it depends on what you exactly want. Either you
want the real outcome, in which case it is all 0 (or whatever
other cutoff value you choose). Or you want the latent outcome,
in which case it is just the linear predictor (option xb).
Hope this helps,
Maarten
--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany
http://www.maartenbuis.nl
--------------------------
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