[R-sig-Geo] spatial weights to network?

[Roger Bivand]

On Fri, 22 Jun 2012, Nevil Amos wrote:

> Is it possible to derive a network - say x nearest neighbours form a 
> cost distance matrix ( i.e. square matrix of calculated cost distances 
> between points?
>
> the inverse of spdep nb2mat ?

?mat2listw maybe?

Roger

>
> thanks
>
> Nevil Amos

-- 
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