R: Check that an argument is a vector of type numeric

checkNumeric {checkmate}

R Documentation

Check that an argument is a vector of type numeric

Description

Vectors of storage type “integer” and “double” count as “numeric”, c.f. is.numeric. To explicitly check for real integer or double vectors, see checkInteger, checkIntegerish or checkDouble.

Usage

checkNumeric(x, lower = -Inf, upper = Inf, finite = FALSE,
  any.missing = TRUE, all.missing = TRUE, len = NULL,
  min.len = NULL, max.len = NULL, unique = FALSE, sorted = FALSE,
  names = NULL, null.ok = FALSE)

check_numeric(x, lower = -Inf, upper = Inf, finite = FALSE,
  any.missing = TRUE, all.missing = TRUE, len = NULL,
  min.len = NULL, max.len = NULL, unique = FALSE, sorted = FALSE,
  names = NULL, null.ok = FALSE)

assertNumeric(x, lower = -Inf, upper = Inf, finite = FALSE,
  any.missing = TRUE, all.missing = TRUE, len = NULL,
  min.len = NULL, max.len = NULL, unique = FALSE, sorted = FALSE,
  names = NULL, null.ok = FALSE, .var.name = vname(x), add = NULL)

assert_numeric(x, lower = -Inf, upper = Inf, finite = FALSE,
  any.missing = TRUE, all.missing = TRUE, len = NULL,
  min.len = NULL, max.len = NULL, unique = FALSE, sorted = FALSE,
  names = NULL, null.ok = FALSE, .var.name = vname(x), add = NULL)

testNumeric(x, lower = -Inf, upper = Inf, finite = FALSE,
  any.missing = TRUE, all.missing = TRUE, len = NULL,
  min.len = NULL, max.len = NULL, unique = FALSE, sorted = FALSE,
  names = NULL, null.ok = FALSE)

test_numeric(x, lower = -Inf, upper = Inf, finite = FALSE,
  any.missing = TRUE, all.missing = TRUE, len = NULL,
  min.len = NULL, max.len = NULL, unique = FALSE, sorted = FALSE,
  names = NULL, null.ok = FALSE)

expect_numeric(x, lower = -Inf, upper = Inf, finite = FALSE,
  any.missing = TRUE, all.missing = TRUE, len = NULL,
  min.len = NULL, max.len = NULL, unique = FALSE, sorted = FALSE,
  names = NULL, null.ok = FALSE, info = NULL, label = vname(x))

Arguments

`x`	[any] Object to check.
`lower`	[`numeric(1)`] Lower value all elements of `x` must be greater than or equal to.
`upper`	[`numeric(1)`] Upper value all elements of `x` must be lower than or equal to.
`finite`	[`logical(1)`] Check for only finite values? Default is `FALSE`.
`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`.
`sorted`	[`logical(1)`] Elements must be sorted in ascending order. Missing values are ignored.
`names`	[`character(1)`] Check for names. See `checkNamed` for possible values. Default is “any” which performs no check at all. Note that you can use `checkSubset` to check for a specific set of names.
`null.ok`	[`logical(1)`] If set to `TRUE`, `x` may also be `NULL`. In this case only a type check of `x` is performed, all additional checks are disabled.
`.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`.

Details

This function does not distinguish between NA, NA_integer_, NA_real_, NA_complex_ NA_character_ and NaN.

Value

Depending on the function prefix: If the check is successful, the functions assertNumeric/assert_numeric return x invisibly, whereas checkNumeric/check_numeric and testNumeric/test_numeric return TRUE. If the check is not successful, assertNumeric/assert_numeric throws an error message, testNumeric/test_numeric returns FALSE, and checkNumeric returns a string with the error message. The function expect_numeric always returns an expectation.

Examples

testNumeric(1)
testNumeric(1, min.len = 1, lower = 0)

[Package checkmate version 1.9.1 Index]