Antonio,
Antonio Olinto wrote:
> Dear Ehlers, thanks for your message.
>
> Following the example on stepAIC and Venebles & Ripley’s book, it seems that
> update rearranges the terms. I didn’t understand how to indicate the formula
> in
> the function.
>
> I have the initial model U ~ var1+var2+
Dear Ehlers, thanks for your message.
Following the example on stepAIC and Venebles & Ripleys book, it seems that
update rearranges the terms. I didnt understand how to indicate the formula in
the function.
I have the initial model U ~ var1+var2+var3+var4 (family Gaussian). I want first
to sele
Antonio Olinto wrote:
> Hello,
>
> I have a doubt in using the function step (step wise) to select glm models.
>
> Usually I apply the gamma distribution to analyze fishery data. To select the
> terms I use a routine where I first compare single term models to the null
> model
> (eg. U~1 vs. U
Hello,
I have a doubt in using the function step (step wise) to select glm models.
Usually I apply the gamma distribution to analyze fishery data. To select the
terms I use a routine where I first compare single term models to the null model
(eg. U~1 vs. U~depth; U~1 vs. U~latitude; etc. where
