Dear Stata users,
I am using a duration model to explain childhood mortality (dying before 5
years of age).
The duration time ranges from 0 to 60 months. A failure dummy indicates
whether or not the child has died before 60 months.
I use: �streg $xvars , dist(lognormal)�
Thereafter I want to calculate expected durations. To do so I use �predict
meanpredct, mean �.
Now, the problem is that these predicted durations are too big, they range
from 102738.1 to 1.33e+09. They can't be interpreted as expected
durations?
Could someone give me an idea on what I am doing wrong?
Thanks a lot in advance,
Ellen Van de Poel
____________________________________________________________________________
______________________________
Ellen Van de Poel
�
Department of Applied Economics
Erasmus School of Economics and Business Economics
Erasmus University Rotterdam
Burg. Oudlaan 50
3000 DR Rotterdam
The Netherlands
Room H13-09
T: +31 (0) 10 408 15 02
F: +31 (0) 10 408 91 41
E�: [email protected]
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