Message-ID: <MPG.25e32effd00e04739896d9@news.gmane.org>
Date: 2010-02-15T09:15:02Z
From: Karl Ove Hufthammer
Subject: Multinomial logist regression
On Mon, 8 Feb 2010 18:29:06 -0500 Steve Friedman <friedman.steve-
Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org> wrote:
> Which package and function is more commonly used for ecological
> investigations of this kind?
I don't know, but for multinomial models in general, I have been happy
with the 'multinom' function in the 'nnet' package.
> How can I develop a plot illustrating the probabilities of each of the six
> response vegetation types for a given concentration of nutrients (the
> independent predictors) ?
The 'effects' package is perfect for these kinds of plots, and has
recently been extended with support for multinomial models:
http://www.jstatsoft.org/v32/i01
--
Karl Ove Hufthammer