[R-sig-Geo] FW: GWAR - R

[Roger Bivand]

On Thu, 22 Sep 2011, Inaki Sagarzazu wrote:

>
> Hi,
>
> I am trying to use gwr in R but I'm having problems because some of my 
> polygons have missing values (NA) for the variables of interest. Do you 
> have any suggestions on how to solve this?

If data is missing in the response or covariates, all bets are off. You
could drop those observations, or incomplete variables. You could try to 
impute the values, but then standard results would not hold downstream.

Roger

>
> thanks
>
> ---------------------------------------------------------------------------------------------------------------
> Iñaki Sagarzazu, PhD
> Research Officer
> Nuffield College
> University of Oxford
> OX1 1NF Oxford
> United Kingdom
>
> Office: 44 (0) 1 865 614990
> Inaki.Sagarzazu at nuffield.ox.ac.uk
> http://www.inaki-sagarzazu.com
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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