[R-sig-Geo] GWR bandwidth and performance metric

[Roger Bivand]

On Wed, 10 Oct 2012, satellite12 wrote:

> Hi, I wanted to try GWR and I'm confused on the definition of bandwidth.
> Which will be better to use fixed or the adaptive one?

Please read the references carefully. This is explained by Fotheringham et 
al. in the GWR book (2002). However, never think of using GWR, especially 
for anything inferential, without first reading and grasping Paez et al. 
(2011).

Roger

>
> Also, is there a way to compute for the deviance explained by the model just
> like the one's we get when we do GAM? I want to compare the two based on
> this metric. Or better yet, are there other metrics to evaluate performance
> between these two model types?
>
> Thank you very much for any insight on this.
>
> Cheers,
> Irene
>
>
>
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-- 
Roger Bivand
Department of Economics, NHH Norwegian School of Economics,
Helleveien 30, N-5045 Bergen, Norway.
voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no