Hi Maarten,
Thanks for the link. I read it but I wonder - does perfect
prediction result in exclusion of those observations?
Hi Richard,
I checked again and my runs aren't different. I simply
replaced the -reg- with -logit- and re-run the command, and
get a different no. of obs. I am not sure how useful would
pasting my command be for you because there's really
nothing different between the two commands that I am
running (except the estimation method.)
Nishant
--- Richard Williams <Richard.A.Williams.5@ND.edu> wrote:
That shouldn't be happening. I suspect there is
something different
between your runs, e.g. are you using a different
dependent
variable? Perhaps you could show the commands and
output.
At 02:11 PM 10/3/2006, Nishant Dass wrote:
>Dear list members,
>
>I am estimating a -probit-/-logit- model and my question
is
>about its comparison with the linear probability model
>(simple OLS).
>
>When I run the -probit- or -logit-, the number of
>observations is the same but much less when compared
with
>the OLS estimation of the very same model! (E.g., the
no.
>of obs. in my probit and logit estimate is 12,000 while
>it's only 10,000 in the OLS regression.)
>
>Could anyone please tell me why do -probit- and -logit-
>drop these observations?
>
>Thank you very much,
>
>Nishant
>
>
>
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