calculate_digit

Calculates a single Verhoeff Check Digit. This function is exported, but it would usually be called from one of the `verhoeff_*` wrapper functions

calculate_digit(number, d5, d5_p, inv_v)

Arguments

number

A number you want to calculate the check digit for
d5

The verhoeff d5 matrix. Retrievable with create_verhoeff_matrices()$d5
d5_p

The verhoeff p matrix. Retrievable with create_verhoeff_matrices()$d5_p
inv_v

The verhoeff inv matrix. Retrievable with create_verhoeff_matrices()$inv_v

Value

A single integer

Examples

dat <- verhoeff::create_verhoeff_matrices()
calculate_digit(5, dat$d5, dat$d5_p, dat$inv_v)

#> [1] 8