The principal sum (also known as the face value) of the bond.
evaluationDate
The date when the Par Yield is evaluated.
maturityDate
The date when the bond matures.
annualOrSemi
When the coupon is paid annually then this parameter is true and if the coupon is paid semi-annually then it is false.
maturityZero
The zero rate for the maturity of the bond under consideration.
paymentDates
An array of dates where the first element is the date of the first coupon payment and the second element is the date of the second coupon payment and so on.
zeroCurveOnCouponPaymentDates
An array where the first term is the Treasury zero interest rate of maturity equal to the time until the first coupon payment, and the second term is the Treasury zero interest rate of maturity equal to the time until the second coupon payment, and so on.
businessCalendarName
The name of one of the implemented business calendars, "London" by default.
Remarks
Recall, that the Par yield for a given maturity is the yield to causes the bonds price to equal
the principle sum (or face value) repaid at maturity.
The Treasury bonds Par yield is evaluated using the zero term structure of the corresponding
Treasury zero curve. In order to apply this approach the zero curve will need to be evaluated
on maturities which correspond to the coupon payment dates. For example, if we consider a two
year bond which pays a semiannual coupon then the Treasury zero rates will need to be known for
the maturities 0.5, 1, 1.5 and 2 years.