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variates
2005 Dec 21
0
Help with Krige.conv using linear models
...a grid. But?one set of my data appears to be
linearly correlated for the first 5000 meters and not correlated beyond
that. I have been having problems using krige.conv() to get a decent
kriged map using the linear model. The code I am using from my data is
as follows:
>modeltest=variofit(variotest, weights=?cressie?, cov.model=?linear?,
ini.cov.pars=c(80,1))
The output parameters are tausq = 9.855, sigmasq = 0.0087, phi=1.0
>krig=krige.conv(data, krige=krige.control(type.krig=?ok?,
obj.model=modeltest), locations=pred.grid)
At this point, krig$predict values have little to no variab...