The Slope Direction Line indicator is displayed as a colored moving average line indicating the average market movement direction.

The indicator has three input parameters:

• Period - calculation period;
• Method - calculation method;
• Applied price - price used for calculations.

SDL = MA(Vector, Sqrt(Period), Method)

Vector = 2*MA2 - MA  MA2 - MA(Applied price, Period/2, Method)  MA - MA(Applied price, Period, Method)