assert_valid_var {chevron}

Check whether var is valid

Description

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,
  ...
)

## 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.

Details

This function checks the variable values are valid or not.

Value

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