Monica
Could you please send me the
zn.gdata and loc1 objects and I will investigate this
P.J.
On Fri, 23 Apr 2004, Monica Palaseanu-Lovejoy wrote:
> Hi,
>
> I am coming back with a question about GeoR hopping somebody
> can help.
>
> I am doing a bayesian kriging and the prediction coordinates are
> shifted 0.1 m from the data coordinates.
>
> I am using the following command and i am getting the following
> error:
>
> zn.bayes <- krige.bayes(zn.gdata, loc = loc1, model =
> model.control(cov.model = �exponential�, lambda = 0),
> prior = prior.control(phi.prior =�exponential�, phi =
> 89.1948), output=output.control(n.predictive=2,
> mean.var = TRUE, quantile = c(0.025, 0.25, 0.5, 0.75,
> 0.975), threshold = c(300)))
>
> Error: Error in cond.sim(env.loc = base.env, env.iter = iter.env,
> loc.coincide = get("loc.coincide", :
> chol: matrix not pos def, diag[13]= -3.487549e-019
>
> What i am doing wrong? The location loc1 is a data frame with the
> shifted coord. values. Any suggestion is very well appreciated.
>
> Thanks,
>
> Monica
>
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>
Paulo Justiniano Ribeiro Jr
Departamento de Estat�stica
Universidade Federal do Paran�
Caixa Postal 19.081
CEP 81.531-990
Curitiba, PR - Brasil
Tel: (+55) 41 361 3471
Fax: (+55) 41 361 3141
e-mail: [EMAIL PROTECTED]
http://www.est.ufpr.br/~paulojus
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