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checkmate (version 2.3.2)

checkAtomic: Check that an argument is an atomic vector

Description

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

Note that `NULL` is recognized as a valid atomic value, as in R versions up to version 4.3.x. For details, see https://stat.ethz.ch/pipermail/r-devel/2023-September/082892.html.

Usage

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) )

Value

Depending on the function prefix: If the check is successful, the functions

assertAtomic/assert_atomic return

x invisibly, whereas

checkAtomic/check_atomic and

testAtomic/test_atomic return

TRUE. If the check is not successful,

assertAtomic/assert_atomic

throws an error message,

testAtomic/test_atomic

returns FALSE, and checkAtomic/check_atomic

return a string with the error message. The function expect_atomic always returns an

expectation.

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 no non-missing values allowed? Default is TRUE. Note that empty vectors do not have non-missing values.

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.

See Also

Other basetypes: checkArray(), checkAtomicVector(), checkCharacter(), checkComplex(), checkDataFrame(), checkDate(), checkDouble(), checkEnvironment(), checkFactor(), checkFormula(), checkFunction(), checkInteger(), checkIntegerish(), checkList(), checkLogical(), checkMatrix(), checkNull(), checkNumeric(), checkPOSIXct(), checkRaw(), checkVector()

Other atomicvector: checkAtomicVector(), checkVector()

Examples

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

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