Triple Sine Oscillator

[whoDAT]

The Triple Sine Oscillator is a responsive mean reversion indicator. Due to the math of the sine cubed function, smaller changes around the mean cause larger movement of the indicator; and conversely smaller moves near the peaks. This causes the indicator to quickly and decisively show reversion from the mean.

More here: https://www.mql5.com/en/articles/20220

# Triple-Sine Oscillator
# by whoDAT 1/2026

declare lower;

input Periods = 20;      # Period for SMA and StdDev
input Sensitivity  = 0.5;     # Sensitivity multiplier

# --- Moving Average and Standard Deviation
def ma = Average(close, Periods);
def sd = StDev(close, Periods);

# --- Prevent division by zero
def ScaledResult =
    if sd != 0 then
        Sensitivity * (close - ma) / sd
    else
        0;

# --- Triple Sine Function: (sin(x))^3
def TripleSine = Power(Sin(ScaledResult), 3);

# --- Plot
plot TSO = TripleSine;
TSO.SetDefaultColor(Color.LIGHT_GREEN);

# --- Reference Levels
plot Upper = 0.7;
plot Lower = -0.7;
plot Zero  = 0;

Upper.SetDefaultColor(Color.GRAY);
Lower.SetDefaultColor(Color.GRAY);
Zero.SetDefaultColor(Color.GRAY);

Upper.SetStyle(Curve.SHORT_DASH);
Lower.SetStyle(Curve.SHORT_DASH);
Zero.SetStyle(Curve.LONG_DASH);

LOWER STUDY BELOW:

 

[Santhosh]

Thank you. What is the upper indicator featuring arrows? Would you be able to share the code, if possible?
Thanks

 

[whoDAT]

Thank you. What is the upper indicator featuring arrows? Would you be able to share the code, if possible?
Thanks

Its a 100% after the fact repainter moving average. Its not a predictive indicator; it points out strong moving daily trends. It is 100% accurate because it looks at the past day; not useful for a strategy.