study(title="S.a.r. Momentum Differene", shorttitle="SMD") len = input(10, minval=1, title="Length") src = input(close, title="Source") start = input(0.05) increment = input(0.05) maximum = input(0.1) mom = src - src out = sar(start, increment, maximum) smd = out - mom plot(smd, color=red, title="SMD")