Nothing
bapply <- function(x, f, ..., index = "Index") {
result <- lapply(x, f, ...)
bind(result, index = index)
}
enumerate <- function(x, f, ..., FUN.VALUE = NULL) {
n <- names(x)
idx <- named(seq_along(x), n)
callback <- function(i) f(n[[i]], x[[i]], ...)
if (is.environment(x))
x <- as.list(x, all.names = TRUE)
if (is.null(FUN.VALUE))
lapply(idx, callback)
else
vapply(idx, callback, FUN.VALUE = FUN.VALUE)
}
enum_chr <- function(x, f, ...) {
enumerate(x, f, ..., FUN.VALUE = character(1))
}
enum_int <- function(x, f, ...) {
enumerate(x, f, ..., FUN.VALUE = integer(1))
}
enum_dbl <- function(x, f, ...) {
enumerate(x, f, ..., FUN.VALUE = double(1))
}
enum_lgl <- function(x, f, ...) {
enumerate(x, f, ..., FUN.VALUE = logical(1))
}
uapply <- function(x, f, ...) {
f <- match.fun(f)
unlist(lapply(x, f, ...), recursive = FALSE)
}
filter <- function(x, f, ...) {
f <- match.fun(f)
x[map_lgl(x, f, ...)]
}
reject <- function(x, f, ...) {
f <- match.fun(f)
x[!map_lgl(x, f, ...)]
}
map <- function(x, f, ...) {
f <- match.fun(f)
lapply(x, f, ...)
}
map_chr <- function(x, f, ...) {
f <- match.fun(f)
vapply(x, f, ..., FUN.VALUE = character(1))
}
map_dbl <- function(x, f, ...) {
f <- match.fun(f)
vapply(x, f, ..., FUN.VALUE = numeric(1))
}
map_int <- function(x, f, ...) {
f <- match.fun(f)
vapply(x, f, ..., FUN.VALUE = integer(1))
}
map_lgl <- function(x, f, ...) {
f <- match.fun(f)
vapply(x, f, ..., FUN.VALUE = logical(1))
}
extract <- function(x, ...) {
lapply(x, `[[`, ...)
}
extract_chr <- function(x, ...) {
vapply(x, `[[`, ..., FUN.VALUE = character(1))
}
extract_dbl <- function(x, ...) {
vapply(x, `[[`, ..., FUN.VALUE = numeric(1))
}
extract_int <- function(x, ...) {
vapply(x, `[[`, ..., FUN.VALUE = integer(1))
}
extract_lgl <- function(x, ...) {
vapply(x, `[[`, ..., FUN.VALUE = logical(1))
}
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.