Accrual Days

Function Accrual Days within Bond with keys Bond Accrual Days keysreturns the accrual days of the referenced bond at a given reference date Tˢ
Several values may be also returned here in the form of a 1D-array
This equals the number of calendar days of the accrual period containing Tˢ

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).