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 default
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.

Value

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

Details

This function checks the variable values are valid or not.