https://github.com/cran/fields
Tip revision: 04279c16ce718b82025aae97f6fcd30ba3a8b1c5 authored by Doug Nychka on 05 September 2011, 20:18:33 UTC
version 6.6
version 6.6
Tip revision: 04279c1
summary.gcv.Krig.R
# fields, Tools for spatial data
# Copyright 2004-2011, Institute for Mathematics Applied Geosciences
# University Corporation for Atmospheric Research
# Licensed under the GPL -- www.gpl.org/licenses/gpl.html
"summary.gcv.Krig" <- function(object, lambda, cost = 1,
verbose = FALSE, offset = 0, y = NULL, ...) {
out <- object
nt <- out$nt
np <- out$np
N <- out$N
D <- out$matrices$D
if (is.null(y)) {
u <- out$matrices$u
shat.pure.error <- out$shat.pure.error
pure.ss <- out$pure.ss
}
else {
out2 <- Krig.coef(out, y)
u <- out2$u
shat.pure.error <- out2$shat.pure.error
pure.ss <- out2$pure.ss
}
info <- list(matrices = list(D = D, u = u), N = N, nt = nt,
cost = cost, pure.ss = pure.ss, shat.pure.error = shat.pure.error,
offset = offset)
if (verbose) {
print(info)
}
lambda.est <- rep(NA, 6)
names(lambda.est) <- c("lambda", "trA", "GCV", "GCV.one",
"GCV.model", "shat")
lambda.est[1] <- lambda
lambda.est[2] <- Krig.ftrace(lambda, D)
lambda.est[3] <- Krig.fgcv(lambda, info)
lambda.est[4] <- Krig.fgcv.one(lambda, info)
if (!is.na(shat.pure.error)) {
lambda.est[5] <- Krig.fgcv.model(lambda, info)
}
lambda.est[6] <- sqrt(Krig.fs2hat(lambda, info))
lambda.est
}