Check Count

Checks if an object is a count (non-negative integer or if coerce = TRUE non-negative numeric whole number).

check_count(x, coerce = FALSE, x_name = substitute(x), error = TRUE)

Arguments

x

The object to check.

coerce

A flag indicating whether to coerce a non-negative numeric (dbl) whole number to a count and drop attributes (including names).

x_name

A string of the name of the object x.

error

A flag indicating whether to throw an informative error or immediately generate an informative message if the check fails.

Value

An invisible copy of x (if it doesn't throw an error).

See also

check_scalar

Examples

check_count(-1L, error = FALSE)
#> Warning: `check_count()` was deprecated in checkr 0.5.1.
#> Please use chk::chk_whole_number() and chk::chk_gte() instead.
#> Warning: the values in -1L must lie between 0 and 2147483647
check_count(1L, error = FALSE)
#> Warning: `check_count()` was deprecated in checkr 0.5.1.
#> Please use chk::chk_whole_number() and chk::chk_gte() instead.
check_count(1, error = FALSE)
#> Warning: `check_count()` was deprecated in checkr 0.5.1.
#> Please use chk::chk_whole_number() and chk::chk_gte() instead.
#> Warning: 1 must be class integer
#> Warning: 1 must inherit from classes 'integer' in that order
check_count(1, coerce = TRUE, error = FALSE)
#> Warning: `check_count()` was deprecated in checkr 0.5.1.
#> Please use chk::chk_whole_number() and chk::chk_gte() instead.
check_count(1.01, coerce = TRUE, error = FALSE)
#> Warning: `check_count()` was deprecated in checkr 0.5.1.
#> Please use chk::chk_whole_number() and chk::chk_gte() instead.
#> Warning: 1.01 must be class integer
#> Warning: 1.01 must inherit from classes 'integer' in that order