is_valid {nhsnumber}

Checks validity of NHS numbers

Description

NHS numbers are 10 digit numbers where the 10th digit is a checksum. This function validates the checksums of the supplied NHS numbers.

Usage

is_valid(nhs_number, warn = TRUE)

Arguments

nhs_number

A vector of 10 digit NHS numbers to validate

warn

Boolean that controls display of warning messages

Value

A logical vector indicating the validity of each input value

Examples

is_valid(1234567881)
is_valid(c(1234567881, 1234512345, 123456789))
is_valid(1234567890, warn = FALSE)