VerifyCheckDigit {CheckDigit}

Verify whether a value ends with a valid check digit

Description

Verify whether a value ends with a valid check digit

Usage

VerifyCheckDigit(x, method)

Arguments

x

character vector of values to verify

method

a character value naming the check digit algorithm to use

Value

logical vector the same length as x

Examples

VerifyCheckDigit("12340", "Verhoeff")  # TRUE
VerifyCheckDigit("21340", "Verhoeff")  # FALSE
VerifyCheckDigit("13240", "Verhoeff")  # FALSE
VerifyCheckDigit("12430", "Verhoeff")  # FALSE
VerifyCheckDigit("12304", "Verhoeff")  # FALSE