R: Check that an argument is an atomic vector

checkAtomicVector {checkmate}

R Documentation

Check that an argument is an atomic vector

Description

An atomic vector is defined slightly different from specifications in is.atomic and is.vector: An atomic vector is either logical, integer, numeric, complex, character or raw and can have any attributes except a dimension attribute (like matrices). I.e., a factor is an atomic vector, but a matrix or NULL are not. In short, this is basically equivalent to is.atomic(x) && !is.null(x) && is.null(dim(x)).

Usage

checkAtomicVector(x, any.missing = TRUE, all.missing = TRUE,
  len = NULL, min.len = NULL, max.len = NULL, unique = FALSE,
  names = NULL)

check_atomic_vector(x, any.missing = TRUE, all.missing = TRUE,
  len = NULL, min.len = NULL, max.len = NULL, unique = FALSE,
  names = NULL)

assertAtomicVector(x, any.missing = TRUE, all.missing = TRUE,
  len = NULL, min.len = NULL, max.len = NULL, unique = FALSE,
  names = NULL, .var.name = vname(x), add = NULL)

assert_atomic_vector(x, any.missing = TRUE, all.missing = TRUE,
  len = NULL, min.len = NULL, max.len = NULL, unique = FALSE,
  names = NULL, .var.name = vname(x), add = NULL)

testAtomicVector(x, any.missing = TRUE, all.missing = TRUE,
  len = NULL, min.len = NULL, max.len = NULL, unique = FALSE,
  names = NULL)

test_atomic_vector(x, any.missing = TRUE, all.missing = TRUE,
  len = NULL, min.len = NULL, max.len = NULL, unique = FALSE,
  names = NULL)

expect_atomic_vector(x, any.missing = TRUE, all.missing = TRUE,
  len = NULL, min.len = NULL, max.len = NULL, unique = FALSE,
  names = NULL, info = NULL, label = vname(x))

Arguments

`x`	[any] Object to check.
`any.missing`	[`logical(1)`] Are vectors with missing values allowed? Default is `TRUE`.
`all.missing`	[`logical(1)`] Are vectors with only missing values allowed? Default is `TRUE`.
`len`	[`integer(1)`] Exact expected length of `x`.
`min.len`	[`integer(1)`] Minimal length of `x`.
`max.len`	[`integer(1)`] Maximal length of `x`.
`unique`	[`logical(1)`] Must all values be unique? Default is `FALSE`.
`names`	[`character(1)`] Check for names. See `checkNamed` for possible values. Default is “any” which performs no check at all.
`.var.name`	[`character(1)`] Name of the checked object to print in assertions. Defaults to the heuristic implemented in `vname`.
`add`	[`AssertCollection`] Collection to store assertion messages. See `AssertCollection`.
`info`	[character(1)] Extra information to be included in the message for the testthat reporter. See `expect_that`.
`label`	[`character(1)`] Name of the checked object to print in messages. Defaults to the heuristic implemented in `vname`.

Value

Depending on the function prefix: If the check is successful, the functions assertAtomicVector/assert_atomic_vector return x invisibly, whereas checkAtomicVector/check_atomic_vector and testAtomicVector/test_atomic_vector return TRUE. If the check is not successful, assertAtomicVector/assert_atomic_vector throws an error message, testAtomicVector/test_atomic_vector returns FALSE, and checkAtomicVector returns a string with the error message. The function expect_atomic_vector always returns an expectation.

Examples

testAtomicVector(letters, min.len = 1L, any.missing = FALSE)