Check if an argument is a valid SEDOL string

Validates SEDOL format including weighted check digit verification.

Usage

is_sedol(x)

Arguments

x

(any)
Object to check.

Value

TRUE if x is a valid SEDOL string, FALSE otherwise.

References

https://en.wikipedia.org/wiki/SEDOL

Examples

is_sedol("0263494")
#> [1] TRUE