Re[2]: Covariate Models
From: KGKOWA@monsanto.com Fri, 13 Jun 1997 08:29:45 -0500
Subject: Re[2]: Covariate Models
Rik,
I agree. I was trying to say the same thing but you've said it more elegantly. One may prefer one parameterization over another for 'computational' (numerical) not 'statistical' reasons as they are essentially fitting the same model.
In Raj's example, I believe you meant that the value of THETA(1) is different between the two parameterizations (method 1 vs method 2) not THETA(2). Specifically,
THETA(1) for the first parameterization corresponds to
THETA(1) * (1/70)**THETA(2) for the second parameterization. The value (and interpretation) of THETA(2) does not change between these two parameterizations.
Ken Kowalski
G.D. Searle