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Re: st: tobit, margins, and prediction with outcome in logs
From
"Dimitriy V. Masterov" <[email protected]>
To
[email protected]
Subject
Re: st: tobit, margins, and prediction with outcome in logs
Date
Sat, 20 Nov 2010 19:59:48 -0500
Michael,
That is actually exactly what I was looking for. It somehow never
occurred to me to do it all in one step.
For posterity's sake,
E(Y|X,Y>0) Margins:
margins,
expression( exp(predict(xb)+0.5*sigma^2) * (1 -
normal((gamma-predict(xb)-sigma^2)/sigma)) *
1/(1-normal((gamma-predict(xb))/sigma)) ) at(x1=(10(10)100)) over(di);
E(Y|X) Margins:
margins,
expression( exp(predict(xb)+0.5*sigma^2) * (1 -
normal((gamma-predict(xb)-sigma^2)/sigma)) ) at(x1=(10(10)100))
over(di);
DVM
P.S. I am reading your Stata graphics book right now. It's very
helpful and beautiful!
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