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HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Johannes
Schoder
Gesendet: Donnerstag, 3. September 2009 21:04
An: [email protected]
Betreff: st: Estimating a model where the dependent variale is a ratio
Hi all,
I am struggling for a while with the following issue:
I should estimate a model of the following form:
(Number of people diagnosed with cancer type i in county c who survived
5 years or more)/ (Total number of people diagnosed with cancer type i
in county c)=beta_ln_Number of people diagnosed with cancer type i in
county c
In my dataset I have information on the survival time in months for each
individual, the county where he was diagnosed, and the cancer type he
was diagnosed with.
My advisor is using SAS and used the command:
PROC GENMOD; class type county MODEL N_SURV/N_DIAG=ln_DIAG type
REPEATED SUBJECT=county
However, in Stata I don't know how to estimate a model where the
dependent variable is a ratio (see the lhs variable above). Does anyone
know how to estimate this kind of model in Stata?
Thanks a lot for your help!!
Best,
Johannes
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