Message-ID: <3EA7142A.3090009@pdf.com>
Date: 2003-04-23T22:31:06Z
From: Spencer Graves
Subject: Comparing formulas
Could you please provided specific examples? This would allow others to
more easily see if they can replicate the problem and then test their
favorite solution.
spencer graves
Jeff Breiwick wrote:
> Dear All,
>
> I want to compare formulas resulting from using stepAIC() on glm() objects.
> I have 2 different formulas, say F1 and F2, which consist of about 10
> factors (Y~A+B+C+...) but one has an interaction term (A:B) while the other
> doesn't. But when I perform F1==F2 it comes back as TRUE. Is there a proper
> way to compare formulas?
>
> -------------------------------------------
> Jeffrey M Breiwick, Ph.D.
> National Marine Mammal Lab., AFSC, NOAA
> 7600 Sand Point Way NE, Bldg. 4
> Seattle, Washington 98115 USA
>
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