assertive (version 0.2-6)

assert_is_unsorted: Is the input unsorted?

Description

Checks to see if the input is unsorted (without the cost of sorting it).

Usage

assert_is_unsorted(x, na.rm = FALSE, strictly = FALSE)

is_unsorted(x, na.rm = FALSE, strictly = FALSE,
  .xname = get_name_in_parent(x))

Arguments

x

Input to check.

na.rm

If TRUE, remove NAs before checking.

strictly

If TRUE, equal values count as unsorted.

.xname

Not intended to be used directly.

Value

• is_unsorted reimplements is.unsorted, providing more information on failure. assert_is_unsorted returns nothing but throws an error if is_unsorted returns FALSE.

See Also

is.unsorted.

Examples

assert_is_unsorted(c(1, 3, 2))
assert_is_unsorted(c(1, 1, 2), strictly = TRUE)
#These tests should fail.
dont_stop(assert_is_unsorted(c(1, 1, 2)))
dont_stop(assert_is_unsorted(c(2, 1, 0)))