Step Up Schedule
Key Step Up Schedule in Scheduled Number Is Inside Fn refers to an optional object of type Schedule that implies the dates d'₁ , d'₂ , ... where the step up operations defined in Left Step Up and Right Step Up apply.
If omitted, it is set equal to the schedule defined in Schedule
The dates d'₁ , d'₂ , ... are the schedule's adjusted dates, i.e. the dates associated with the key _Adjusted Dates of the object here.
If the dates d'₁ , d'₂ , ... differ from the dates d₁ , d₂ , ... , dᵣ implied by the entry in Schedule, the function applicable on any observation date dᵢ equals the function constructed according to the above procedure at the latest date d' such that d' ≤ dᵢ