Nothing
.is.formula <- function(x) {
if (is.null(x)) return(FALSE)
inherits(x, "formula")
}
.is.Surv <- function(x)
inherits(x, "Surv")
.is.R <- function(x)
inherits(x, "response")
.type_of_response <- function(y) {
if (.is.Surv(y)) return("survival")
if (.is.R(y)) {
if (any(.exact(y))) {
y <- y$exact[.exact(y)]
} else {
y <- y$cleft[.cleft(y)]
}
}
if (storage.mode(y) == "double") return("double")
if (is.integer(y)) return("integer")
if (is.ordered(y)) return("ordered")
if (is.factor(y)) return("unordered")
return(NA)
}
.checkR <- function(x, weights = NULL) {
if (!.is.R(x)) return(FALSE)
if (is.null(weights)) weights <- 1
if (all(.cleft(x) & !.cright(x) & weights > 0)) {
warning("response contains left-censored observations only")
return(FALSE)
}
if (all(!.cleft(x) & .cright(x) & weights > 0)) {
warning("response contains right-censored observations only")
return(FALSE)
}
return(TRUE)
}
.exact_subset <- function(exact, subset = NULL) {
iex <- inex <- NULL
if (any(exact))
iex <- which(exact)
if (any(!exact))
inex <- which(!exact)
if (is.null(subset))
return(list(full_ex = iex, full_nex = inex))
full_ex <- redu_ex <- full_nex <- redu_nex <- NULL
if (length(iex) > 0) {
full_ex <- iex[iex %in% subset]
redu_ex <- (1L:length(iex))[iex %in% subset]
}
if (length(inex) > 0) {
full_nex <- inex[inex %in% subset]
redu_nex <- (1L:length(inex))[inex %in% subset]
}
return(list(full_ex = full_ex, redu_ex = redu_ex,
full_nex = full_nex, redu_nex = redu_nex))
}
if (FALSE) {
exact <- c(TRUE, FALSE)[c(1, 2, 1, 1, 2, 2)]
.exact_subset(rep(TRUE, 3))
.exact_subset(rep(FALSE, 3))
.exact_subset(exact)
.exact_subset(exact, 1:2)
.exact_subset(exact, 3:6)
}
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.