<>
*************
webuse lbw2, clear
logit low age lwt race2 race3 smoke ptl ht ui
gen byte used=e(sample)
ta used
*************
HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Jiang, Frank
Gesendet: Donnerstag, 23. April 2009 13:17
An: [email protected]
Betreff: st: identifying obs actually used in a Logit model
Dear listers,
I am having difficulty identifying observations used in a logit model.
The model includes several sets of dummy variables. Some observations
were automatically dropped because some dummy variables perfectly
predict failures, i.e. DV==0. As a result, the number of obs used by
the logit model is smaller than the number of obs in the dataset.
However, I don't know which obs were excluded. Is there a way to
identify the obs that were actually used in the model?
Thanks
Frank
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