Check that an argument is an atomic vector

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Description

For the definition of “atomic”, see is.atomic.

Usage

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

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

assertAtomic(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(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)

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

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

expect_atomic(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. Note that you can use checkSubset to check for a specific set of names.

.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 assertAtmoic/assert_atmoic return x invisibly, whereas checkAtmoic/check_atmoic and testAtmoic/test_atmoic return TRUE. If the check is not successful, assertAtmoic/assert_atmoic throws an error message, testAtmoic/test_atmoic returns FALSE, and checkAtmoic returns a string with the error message. The function expect_atmoic always returns an expectation.

See Also

Other atomicvector: checkAtomicVector, checkVector

Other basetypes: checkArray, checkCharacter, checkComplex, checkDataFrame, checkDate, checkEnvironment, checkFactor, checkFunction, checkIntegerish, checkInteger, checkList, checkLogical, checkMatrix, checkNull, checkNumeric, checkVector

Examples

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

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