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st: RE: What are the practical uses of the -offset- option?
None springs to mind.
A quite different comment is that
a note or paper on this theme would be welcome as
a submission to the Stata Journal.
> Is there a catalogue of the various practical uses of the
> -offset()- option
> (available in -logit-, -probit-, -ologit-, -oprobit-, . . .)?
> I couldn't
> find any general description for its intended use(s) in the
> Stata User's
> Guide, Programming manual (didn't really expect to see
> anything there on it,
> anyway) or in the Reference manuals for the commands that
> have it as an
> option. Its description under the Options sections of the
> various commands
> that offer it is pretty brief and doesn't lend any insight as
> to what it's
> I knew of its use in profiling the log-likelihood to obtain
> confidence intervals--there's one user-written command
> (-logprof-) by Mark
> Pearce that automates the process for one estimation command
> (-logit-/-logistic-), and I've used Bill Gould's -bisect- for the same
> purpose for -probit- and -ologit-. But I'm not aware of anything
> comprehensive written on -offset()-'s applications beyond
> that. Today I
> stumbled across another application remeniscient to
> likelihood profiling,
> except that it doesn't search for log-likelihood values and doesn't
> calculate a deviance: hypothesis testing of a regression
> coefficient at an
> alternative-hypothesis value different from its maximum
> likelihood estimate.
> -findit offset- doesn't turn up anything on-target. Is there
> a source for
> the beginner that I could refer to?
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