[R-sig-Geo] CAR spatial model functions?
Roger Bivand
Roger.Bivand at nhh.no
Sun Aug 15 14:43:35 CEST 2004
On Sun, 15 Aug 2004, Baz wrote:
> Paulo Justiniano Ribeiro Jr wrote:
>
> > One possibility is to install winbugs (and you don't need windows to do
> > so: you can install it in Linux with wine)
> > and use the package rbugs
>
> I tried mucking about with WinBUGS under Wine on Linux earlier this
> year. Disaster.
>
Thanks, this is very useful - though rbugs claims to be able to work with
wine - does anyone have less negative experience with wine? The other R
package (R2WinBUGS) looks Windows-centric. Returning to CAR models, has
anyone written code for exporting neighbour lists from spdep in GeoBUGS
format (that could be included in spdep, or in a separate package
depending on spdep and rbugs and/or R2WinBUGS)?
There was a question (as the original questioner noted) on the list some
months ago about CAR by ML (essentially doing what S-Plus SpatialStats
does)? Is this a general need? Should spdep do it (I've kept away from it
because spdep was not intended to duplicate things already available in
some implementation of S, rather to complement)? Has anybody any code that
could be polished?
Roger
> There were problems with some dialogs not working - this seems to be a
> known problem with applications using the toolkit that WinBUGS uses
> under Wine.
>
> Worse still, some of the examples didn't work. There was something
> really bad going on, something like rnorm() returning 0 for any value of
> mean or sd. Who knows what else could have been going wrong that wasn't
> as noticable?
>
> If there's a proper test suite for WinBUGS now then run it - several
> times - if you want to think about using it under Wine.
>
> Baz
>
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--
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Breiviksveien 40, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 93 93
e-mail: Roger.Bivand at nhh.no
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