summary.spatialProcess.R
# fields is a package for analysis of spatial data written for
# the R software environment .
# Copyright (C) 2018
# University Corporation for Atmospheric Research (UCAR)
# Contact: Douglas Nychka, nychka@ucar.edu,
# National Center for Atmospheric Research, PO Box 3000, Boulder, CO 80307-3000
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
summary.spatialProcess <- function(object, ...) {
# output list
outObject<- list()
digits<- 4
if (is.matrix(object$residuals)) {
n <- nrow(object$residuals)
nData <- ncol(object$residuals)
}
else {
n <- length(object$residuals)
nData <- 1
}
c1 <- "Number of Observations:"
c2 <- n
if (nData > 1) {
c1 <- c(c1, "Number of data sets fit:")
c2 <- c(c2, nData)
}
c1 <- c(c1, "Degree of polynomial in fixed part: ")
if(object$m !=0 ){
c2 <- c(c2, object$m - 1)
}
else{
c2 <- c(c2, NA)
}
c1 <- c(c1, "Total number of parameters in fixed part: ")
c2 <- c(c2, object$nt)
if (object$nZ > 0) {
c1 <- c(c1, "Number of additional covariates (Z)")
c2 <- c(c2, object$nZ)
}
c1 <- c(c1, "MLE nugget variance ( sigma^2)")
c2 <- c(c2, signif(object$sigma.MLE.FULL^2, digits))
c1 <- c(c1, "MLE process variance (rho)")
c2 <- c(c2, signif(object$rho.MLE.FULL, digits))
c1 <- c(c1, "Value for lambda = sigma^2/rho")
c2 <- c(c2, signif(object$lambdaModel, digits))
c1 <- c(c1, "MLE range parameter (theta, units of distance): ")
c2 <- c(c2, signif(object$theta.MLE, digits))
c1 <- c(c1, paste0( "Approx ", object$confidenceLevel, "% CI for theta: ") )
c2<- c(c2, paste( "[",signif( object$theta.CI[1], digits), ",",
signif( object$theta.CI[2], digits), "]" )
)
if (!is.na(object$eff.df)) {
c1 <- c(c1, "Approx. degrees of freedom for curve")
c2 <- c(c2, signif(object$eff.df, digits))
if (length(object$trA.info) < object$np) {
c1 <- c(c1, " Standard Error of df estimate: ")
c2 <- c(c2, signif(sd(object$trA.info)/sqrt(length(object$trA.info)),
digits))
}
}
c1 <- c(c1, "Nonzero entries in covariance")
c2 <- c(c2, object$nonzero.entries)
c1<- c(c1, "log Likelihood: " )
c2<- c( c2, object$lnProfileLike.FULL)
c1<- c(c1, "log Likelihood REML: " )
c2<- c( c2, object$lnProfileREML.FULL)
summaryStuff<- cbind(c1, c2)
dimnames(summaryStuff) <- list(rep("",
dim(summaryStuff)[1]),
rep("", dim(summaryStuff)[2]))
###########
outObject$summaryTable<- summaryStuff
outObject$collapseFixedEffect<- object$collapseFixedEffect
###########
outObject$MLEpars<- names( object$MLEInfo$pars.MLE)
outObject$MLESummary<- object$summary
########### information for SE for fixed effects
if( outObject$collapseFixedEffect | (nData==1) ){
outObject$fixedEffectsCov<- object$fixedEffectsCov
SE<- sqrt(diag(outObject$fixedEffectsCov))
d.coef<- object$d[,1]
pValue<- pnorm(abs(d.coef/SE), lower.tail = FALSE)*2
outObject$fixedEffectsTable<- cbind( signif(d.coef, digits),
signif(SE, digits),
signif(pValue, digits)
)
if( is.null( object$fixedEffectNames ) ){
outObject$fixedEffectNames<- paste0("d",1:(object$nt) )
}
else{
outObject$fixedEffectNames<- object$fixedEffectNames
}
dimnames( outObject$fixedEffectsTable) <- list( outObject$fixedEffectNames,
c("estimate", "SE", "pValue") )
}
#####################
outObject$nData <- nData
outObject$call<- object$call
outObject$cov.function<- object$cov.function
outObject$args<- object$args
class( outObject)<-"spatialProcessSummary"
return( outObject)
}