Schedule
Key Schedule in Scheduled Real Signal refers to an optional object of type Schedule that implies the dates d₁ , d₂ , ... , dₙ as described in Scheduled Real Signal
If missing, no such dates are implied.
In the missing case, for any given input d , x₁ , x₂ , ... , xᵤ the following hold for the output of Scheduled Real Signal:
a) It does not depend on the date input d
b) It is identical with the output of the function ƒ₁, i.e. the first of the functions defined through the key Signals, if the latter is fed with the input x₁ , x₂ , ... , xᵤ