1

I'm performing IDW interpolation using the idw R function from the gstat package. For the purpose of determining what combination of "idp" and "nmax" produces the lowest RMSE in leave-one-out-cross validation, how can I specify the "idp" and the "nmax" that are going to be use in the krige.cv function?

1

I've had the same problem and just found a solution: In the gstat-documentation on page 21 they use for defining idp the expression set = list(idp = 0.5). For "nmax" it's as usual:

meuse.idw_cv <- krige.cv(log(zinc)~1, meuse, nmax = 7, set = list(idp = .5))

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.