Verify whether a value ends with a valid check digit

Verify whether a value ends with a valid check digit

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