Im trying to understand data from a data file. If I have
d∆t(t) = x(t + ∆t) − x(t) , where ∆t is the trading days difference and x is price
If I assign t as
. For each ∆t I should get a new time seriesd ∆t that is of length numberofdays−∆t, How would I plot d1(t) and d2(t) as a function of time.