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Re: st: extended generalized Gamma distribution


From   n j cox <[email protected]>
To   [email protected]
Subject   Re: st: extended generalized Gamma distribution
Date   Wed, 07 Dec 2005 16:07:15 +0000

Yes, but also be careful.

There are various three-parameter versions of the
gamma. Whether -streg- offers the version you
want, or even one compatible with it by an
easy reparameterisation, will not be clear
until you examine the details.

Also, I recollect -streg- has a built-in disposition to deal
with responses that are zero or positive only: do correct
me if I am wrong. That makes sense for
survival analysis, but some writers on gamma distributions
are quite happy to define them with different support.
Again, this might be a matter merely of reparameterisation,
or reexpression, but watch out.

>>> Jamie Griffin

-streg- with distribution gamma fits the extended generalized gamma
distribution.

[email protected]

is anyone aware of a Stata program allowing for estimating the
three parameters of the extended generalized Gamma distribution?
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