Nothing
confint.rsf <-
function (object, parm, level = 0.95, type, ...)
{
boot <- object$bootstrap
if (missing(type)) {
type <- if (is.null(boot))
"mle" else "boot"
}
type <- match.arg(type, c("mle", "boot"))
if (type == "boot" && is.null(boot))
stop("no bootstrap results found")
if (type != "boot")
boot <- NULL
cf <- coef(object)
pnames <- names(cf)
if (missing(parm)) {
parm <- pnames
} else {
if (is.numeric(parm))
parm <- pnames[parm]
}
a <- (1 - level)/2
a <- c(a, 1 - a)
pct <- paste(format(100 * a, trim = TRUE, scientific = FALSE, digits = 3), "%", sep="")
ci <- array(NA, dim = c(length(parm), 2), dimnames = list(parm, pct))
if (type == "mle") {
# fac <- qt(a, object$df.residual)
fac <- qnorm(a)
ses <- sqrt(diag(vcov(object, type)))
ci[] <- cf[parm] + ses[parm] %o% fac
} else {
cii <- t(apply(boot, 1, quantile, probs=a))
rownames(cii) <- pnames
ci[] <- cii[parm,,drop=FALSE]
}
return(ci)
}
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