Hello All ---
I'm using Intercooled Stata, 8.2. In Hosmer & Lemeshow's
"Applied Logistic Regression", the authors indicate that it may
be possible to exclude a subsample of observations, develop a
model, then test the model on the excluded observations
(p.171). I'm interested in doing just that, although I'm at a
loss as to if -- and how -- something like this can be
implemented in Stata. I've searched the Statalist archives,
Incidentally, my own inclination, quite possibly wrong, would be to test
whether parameters significantly differed between my 2 samples. Building
on my previous example, you could do that via a Chow test procedure,
something like