chi_valid: Test for valid Community Health Index (CHI) number

In SurgicalInformatics/chiTools: Tools Extracting Information From the Scottish Community Health Index Number (CHI)

Description

Modulus 11 test on final digit to ensure CHI numnber is valid.

Usage

chi_valid(.data)

Arguments

.data

Character. A vector of CHIs as characters/strings.

Value

A logical vector with FALSE indicating a non-valid CHI.

Examples

library(dplyr)
# These CHIs are not real.
chi = c("1009701234", "1811431232", "1304496368")

chi_valid(chi)
# From tibble
tibble(chi = chi) %>%
  mutate(
    chi_valid = chi_valid(chi)
  )

SurgicalInformatics/chiTools documentation built on Feb. 5, 2021, 8:28 p.m.