settlement,maturity,investment,redemption,basis!Returns the interest rate for a fully invested security!is the security's ...

!settlement,maturity,investment,redemption,basis!!Returns the interest rate for a fully invested security!is the security's settlement date, expressed as a serial date number!is the security's maturity date, expressed as a serial date number!is the amount invested in the security!is the amount to be received at maturity!is the type of day count basis to use!