checkr (version 0.5.0)

check_count: Check Count

Description

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

Usage

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.

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

# NOT RUN {
check_count(-1L, error = FALSE)
check_count(1L, error = FALSE)
check_count(1, error = FALSE)
check_count(1, coerce = TRUE, error = FALSE)
check_count(1.01, coerce = TRUE, error = FALSE)
# }