# 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
"print.Krig" <- function(x, digits = 4, ...) {
    c1 <- "Number of Observations:"
    c2 <- length(x$residuals)
    #
    # print out null space poly info only if 'm' is used
    if (!is.null(x$args.null$m)) {
        c1 <- c(c1, "Degree of polynomial null space ( base model):")
        c2 <- c(c2, x$m - 1)
    }
    c1 <- c(c1, "Number of parameters in the null space")
    c2 <- c(c2, x$nt)
    c1 <- c(c1, "Parameters for fixed spatial drift")
    c2 <- c(c2, sum(x$ind.drift))
    c1 <- c(c1, "Model degrees of freedom:")
    c2 <- c(c2, format(round(x$eff.df, 1)))
    c1 <- c(c1, "Residual degrees of freedom:")
    c2 <- c(c2, format(round(length(x$residuals) - x$eff.df, 
        1)))
    c1 <- c(c1, "GCV estimate for sigma:")
    c2 <- c(c2, format(signif(x$shat.GCV, digits)))
    c1 <- c(c1, "MLE for sigma:")
    c2 <- c(c2, format(signif(x$shat.MLE, digits)))
    c1 <- c(c1, "MLE for rho:")
    c2 <- c(c2, format(signif(x$rho.MLE, digits)))
    c1 <- c(c1, "lambda")
    c2 <- c(c2, format(signif(x$lambda, 2)))
    c1 <- c(c1, "User rho")
    c2 <- c(c2, format(signif(x$rho, digits)))
    c1 <- c(c1, "User sigma^2")
    c2 <- c(c2, format(signif(x$sigma2, digits)))
    sum <- cbind(c1, c2)
    dimnames(sum) <- list(rep("", dim(sum)[1]), rep("", dim(sum)[2]))
    cat("Call:\n")
    dput(x$call)
    print(sum, quote = FALSE)
    invisible(x)
}