Prev CF Date

Function Prev CF Date within Bond with keys Bond Prev CF Date keysreturns the payment date of the cash flow associated with the accrual period of the referenced bond preceding the given settlement date Tˢ
Several values may be also returned here in the form of a 1D-array

If the settlement date Tˢ is not explicitly given, it will be set to the bond's settlement date as implied by a trade transaction assumed to occur on the trade dateT₀ (typically today).