Message-ID: <Pine.LNX.4.58L0.0505191516270.27396@est.ufpr.br>
Date: 2005-05-19T18:19:30Z
From: Paulo Justiniano Ribeiro Jr
Subject: kriging inside borders
In-Reply-To: <EB09E5B9F0E2684F863B525E5C7E0F8912239F@ZZML.newcefe.newage.fr>
Hi
There are a few exemples of kriging inside borders in the geoR tutorials
section available at:
http://www.est.ufpr.br/geoR
Basically you can use polygrid(), althouhg there are other mechanisms
available. polygrid() relies on a splancs function internaly
Please have a look and if the problem persists please contact me
preferelably with some dumpoed workspace and scripts
best
P.J.
On Thu, 19 May 2005, Chloe ARCHINARD wrote:
> Hello,
> I'm using geoR package to compute kriging with the function krige.conv() and I used maptools (read.shape () + Map2poly () )
> and splancs (borders) packages to include a object of class polylist for the attribute borders.
> But I've got this message of error when 'borders' is in krige.conv () :
> krige.conv: there are no prediction locations inside the borders.
> My polylist is not good? The coordinates seam to be OK when I draw a map with this polylist object.
> And if I use 'borders' in the contour function : message error is :
> Error in as.data.frame.default(borders) : can't coerce class "polylist" into a data.frame
> If someone could help me, thanks a lot!
> Chlo? Archinard
>
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Paulo Justiniano Ribeiro Jr
LEG (Laborat?rio de Estat?stica e Geoinforma??o)
Departamento de Estat?stica
Universidade Federal do Paran?
Caixa Postal 19.081
CEP 81.531-990
Curitiba, PR - Brasil
Tel: (+55) 41 3361 3573
Fax: (+55) 41 3361 3141
e-mail: paulojus at est.ufpr.br
http://www.est.ufpr.br/~paulojus