Re: [R-sig-eco] multiple regression

2010-02-15 Thread Gustaf Granath
I m not sure I defended standardizing techniques. Anyways, I agree that it is not a universal tool (K.J. mention some important issues here) and standardized coefficients can be misinterpreted, but so can unscaled coefficients as well. If you know what you are doing, I think these techniques

Re: [R-sig-eco] General Question of Graphical Presentation

2010-02-15 Thread Gustaf Granath
Hi, This is usually an ignored issue in statistical textbooks - but very important when you put together a paper. You can find some suggestions in Gelman Hill 2007. I like the idea of overlay-plots, where you plot your fitted model (with different scenarios) on top of your data. Gustaf

Re: [R-sig-eco] Multinomial logist regression

2010-02-15 Thread Karl Ove Hufthammer
On Mon, 8 Feb 2010 18:29:06 -0500 Steve Friedman friedman.steve- re5jqeeqqe8avxtiumw...@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