On Thu, 10 Mar 2005 16:19:41 -0600
Frank E Harrell Jr <[EMAIL PROTECTED]> wrote:

> The goodness of fit test only works on prespecified models.  It is not 
> valid when stepwise variable selection is used (unless perhaps you use 
> alpha=0.5).
> 

Perhaps I'm blind, but I can't find any reference to an alpha parameter on the 
help page for stepAIC. It runs fine however when I set the parameter and 
produces as model with the same right hand variables as without. Can you tell 
me what it is ?

T
-- 
Trevor Wiens 
[EMAIL PROTECTED]

The significant problems that we face cannot be solved at the same 
level of thinking we were at when we created them. 
(Albert Einstein)

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