[R] Compare lm() to glm(family=poisson)

[Wensui Liu]

i don't understand how you can fit a poisson model with lm() function.
otherwise, how could you compare lm() with glm(...family=poisson)?

On Fri, Jul 31, 2009 at 7:41 PM, Mark Na<mtb954 at gmail.com> wrote:
> Dear R-helpers,
> I would like to compare the fit of two models, one of which I fit using lm()
> and the other using glm(family=poisson). The latter doesn't provide
> r-squared, so I wonder how to go about comparing these
> models (they have the same formula).
>
> Thanks very much,
>
> Mark Na
>
>        [[alternative HTML version deleted]]
>
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WenSui Liu
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