Hello,
I am computing a gls spatial model:
require(nlme)
gls.exp<-gls(S1 ~ X2TPall + tmngem + tmaxjlm + arbdenkm + prat_herm +
arbclakm + conreukm, data=snouter.df, correlation=corExp(form~X+Y),
na.action=na.omit)
and obtain the following error:
Error en Initialize.corSpatial(X[[1L]], ...) :
Range must be > 0 in "corSpatial" initial value
I have checked CorExp, gls, and CorClasses help but couldn't find how to solve
this error. Any help is welcome.
Many thanks in advance,
Jofre
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