High Minus Low
This function returns the high price minus the low price for each bar.
This indicator is often used as a component for other technical indicators but can be used with a moving average to show the change in price action over time.
SET A = SMA(HML(), 14)
set BUY = A > REF(A, 10)
Evaluates to buy when the height of each bar has been increasing over the past several bars.