Nothing
#' Omnibus (Overall) Wald Test for resi objects
#'
#' After running the \code{\link{resi}} function on a fitted model, this function
#' can be used to print the overall Wald test component. If the resi function was run
#' with the `store.boot = TRUE` option to store the full matrix of bootstrapped estimates,
#' the user can specify a different alpha level for this function's confidence intervals.
#' @param object an object resulting from resi function
#' @param alpha an optional new specification for the confidence level. Can be vector-valued
#' @param ... ignored
#' @return Returns a `omnibus_resi` object containing the computed omnibus Wald test
#' @examples
#' # fit a model
#' mod = lm(charges ~ bmi + sex, data = RESI::insurance)
#'
#' # run resi with the store.boot = TRUE option
#' resi_obj = resi(mod, nboot = 100, store.boot = TRUE, alpha = 0.01)
#'
#' # run summary, specifying a different alpha level if desired
#' omnibus(resi_obj, alpha = 0.05)
#' @export
omnibus <- function(object, alpha = NULL, ...){
if(!"resi" %in% class(object)){
stop("\nThis function only works on resi objects")
}
if(is.null(object$overall)){
stop("\nThe resi object did not compute an omnibus test")
}
output = list(alpha = alpha, model.full = object$model.full)
if (is.null(alpha)){
output$alpha = object$alpha
output$overall = object$overall
}
else{
if (!(all(alpha %in% object$alpha))){
if (is.null(object$boot.results)){
stop("\nresi function was not run with store.boot = TRUE option")}
}
if(is.null(object$boot.results)){
output$overall = object$overall[,c(1:(which(colnames(object$overall)
== "RESI")),
which(colnames(object$overall)%in%
c(paste(alpha/2*100, "%", sep=""),
paste((1-alpha/2)*100, "%", sep=""))))]
}
else{
output$overall = object$overall[,1:(which(colnames(object$overall) == "RESI"))]
boot.results = object$boot.results$t
CIs = quantile(boot.results[,1], probs = sort(c(alpha/2, 1-alpha/2)),
na.rm = TRUE)
output$overall[nrow(object$overall), c(paste(alpha/2*100, "%", sep=""),
paste((1-rev(alpha)/2)*100, "%", sep=""))] = CIs
}
}
class(output) = c("omnibus_resi")
output
}
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.