assert_valid_var: Check whether var is valid

Description

Check whether var is valid

Usage

assert_valid_var(x, label, na_ok, empty_ok, ...)
# S3 method for character
assert_valid_var(
  x,
  label = deparse(substitute(x)),
  na_ok = FALSE,
  empty_ok = FALSE,
  min_chars = 1L,
  ...
)
# S3 method for factor
assert_valid_var(
  x,
  label = deparse(substitute(x)),
  na_ok = FALSE,
  empty_ok = FALSE,
  min_chars = 1L,
  ...
)
# S3 method for logical
assert_valid_var(
  x,
  label = deparse(substitute(x)),
  na_ok = TRUE,
  empty_ok = FALSE,
  ...
)
# S3 method for numeric
assert_valid_var(
  x,
  label = deparse(substitute(x)),
  na_ok = TRUE,
  empty_ok = FALSE,
  integerish = FALSE,
  ...
)
# S3 method for POSIXct
assert_valid_var(
  x,
  label = deparse(substitute(x)),
  na_ok = TRUE,
  empty_ok = FALSE,
  tzs = OlsonNames(),
  ...
)
# S3 method for default
assert_valid_var(
  x,
  label = deparse(substitute(x)),
  na_ok = FALSE,
  empty_ok = FALSE,
  ...
)

Value

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

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.

Details

This function checks the variable values are valid or not.