GEOSTATS: Question on Krige in S+
- Dear spatial-statisticians:
Can you please help me decipher the following message from S+ spatial
> elev.krige.gaus <- krige(Z~loc(X,Y), data = elev, covfun=gauss.cov,+ range = 90, sill = 115)
Error in .Fortran("ssukrige",: Covariance matrix is not positive
Covariance matrix is not positive definite in: .Fortran("ssukrige",
I can get krige to work for a spherical model, but not for the
gaussian. Is this a problem with a large matrix (over 900 elements in
the elev data set) in S+?
Thanks in advance,
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