Hello,
I am trying to compare the zscores of using various kriging methods with
inverse distance weighting.
When I run
crossval_idw <- krige.cv(Prec00hr~1, DataCoordhr, nfold=2)
I get all NA's for the zscore. As the residual is a valid number, I am assuming
that the standard deviation is not being calculated properly. However, I can
calculate the standard deviation of the residual:
sd(crossval_idw$residual)
As an aside, I also get all NA's for the variances even though, I also can
calculate the variances separately.
var(crossval_idw$residual)
Any ideas?
Thank you for your help,
Cara
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