Check whether var is valid

Usage

assert_valid_var(x, label, na_ok, empty_ok, ...)

# S3 method for class 'character'
assert_valid_var(
  x,
  label = deparse(substitute(x)),
  na_ok = FALSE,
  empty_ok = FALSE,
  min_chars = 1L,
  ...
)

# S3 method for class 'factor'
assert_valid_var(
  x,
  label = deparse(substitute(x)),
  na_ok = FALSE,
  empty_ok = FALSE,
  min_chars = 1L,
  ...
)

# S3 method for class 'logical'
assert_valid_var(
  x,
  label = deparse(substitute(x)),
  na_ok = TRUE,
  empty_ok = FALSE,
  ...
)

# S3 method for class 'numeric'
assert_valid_var(
  x,
  label = deparse(substitute(x)),
  na_ok = TRUE,
  empty_ok = FALSE,
  integerish = FALSE,
  ...
)

# S3 method for class 'POSIXct'
assert_valid_var(
  x,
  label = deparse(substitute(x)),
  na_ok = TRUE,
  empty_ok = FALSE,
  tzs = OlsonNames(),
  ...
)

# Default S3 method
assert_valid_var(
  x,
  label = deparse(substitute(x)),
  na_ok = FALSE,
  empty_ok = FALSE,
  ...
)

Arguments

x: value of col_split variable
label: (string) hints.
na_ok: (flag) whether NA value is allowed
empty_ok: (flag) whether length 0 value is allowed.
...: Further arguments to methods.
min_chars: (integer) the minimum length of the characters.
integerish: (flag) whether the number should be treated as integerish.
tzs: (character) time zones.

Value

invisible NULL or an error message if the criteria are not fulfilled.

Details

This function checks the variable values are valid or not.