checkmate (version 1.0)

checkInt: Check if an argument is a single integerish value

Description

Check if an argument is a single integerish value

Usage

checkInt(x, na.ok = FALSE, lower = -Inf, upper = Inf,
  tol = sqrt(.Machine$double.eps))
assertInt(x, na.ok = FALSE, lower = -Inf, upper = Inf,
  tol = sqrt(.Machine$double.eps), .var.name)
testInt(x, na.ok = FALSE, lower = -Inf, upper = Inf,
  tol = sqrt(.Machine$double.eps))

Arguments

x

[ANY] Object to check.

.var.name

[character(1)] Name for x. Defaults to a heuristic to determine the name using deparse and substitute.

na.ok

[logical(1)] Are missing values allowed? Default is FALSE.

lower

[numeric(1)] Lower value all elements of x must be greater than.

upper

[numeric(1)] Upper value all elements of x must be lower than.

tol

[double(1)] Numerical tolerance used to check whether a double or complex can be converted. Default is sqrt(.Machine$double.eps).

Value

• Depending on the function prefix: If the check is successful, all functions return TRUE. If the check is not successful, assertInt throws an error message, testInt returns FALSE and checkInt returns a string with the error message.

Details

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

See Also

Other scalars: assertCount, checkCount, testCount; assertFlag, checkFlag, testFlag; assertNumber, checkNumber, testNumber; assertScalarNA, checkScalarNA, testScalarNA; assertScalar, checkScalar, testScalar; assertString, checkString, testString

Examples

testInt(1)
 testInt(-1, lower = 0)