is_valid: Checks validity of NHS numbers
In nhsnumber: Tools for Working with NHS Number Checksums

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

1	is_valid(nhs_number, warn = TRUE)

`nhs_number`	A vector of 10 digit NHS numbers to validate
`warn`	Boolean that controls display of warning messages

A logical vector indicating the validity of each input value

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

nhsnumber documentation built on Dec. 11, 2021, 9:10 a.m.

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