is_cusip: Check if an argument is a valid CUSIP string
In checkstring: Common String Format Validation
is_cusip R Documentation
Check if an argument is a valid CUSIP string
Description
Validates CUSIP format including Luhn-variant check digit verification.
Usage
is_cusip(x)
Arguments
x
(any)
Object to check.
Value
TRUE if x is a valid CUSIP string, FALSE otherwise.
References
https://en.wikipedia.org/wiki/CUSIP
Examples
is_cusip("037833100")
checkstring documentation built on Sept. 28, 2026, 5:07 p.m.
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| is_cusip | R Documentation |
Check if an argument is a valid CUSIP string
Description
Validates CUSIP format including Luhn-variant check digit verification.
Usage
is_cusip(x)
Arguments
x |
( |
Value
TRUE if x is a valid CUSIP string, FALSE otherwise.
References
https://en.wikipedia.org/wiki/CUSIP
Examples
is_cusip("037833100")
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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