Fail if TRUE or FALSE is not supplied

Internal function that fails if something other than TRUE or FALSE is supplied.

Usage

failTF(TF)

Arguments

TF

Must be TRUE, FALSE, T, or F

See also

Other failure functions: failBTPI(), failCR(), failDLdate(), failDLstate(), failProofed(), failState(), failWidths(), failYear()

Author

Abby Walter, abby_walter@fws.gov