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refactor: Optimized for incremental calculation

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Toh4iem9
2025-11-29 12:44:28 +01:00
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Indicators/MyIndicators/Authors/Ehlers/5_Ehlers_Hybrids/MACD_SuperSmoother_Pro.md
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# MACD SuperSmoother Professional
# MACD SuperSmoother Pro
## 1. Summary (Introduction)
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* **Modular and Composite Design:** The `MACD_SuperSmoother_Calculator.mqh` uses a composition-based design: it **contains two instances** of our robust, state-managed `Ehlers_Smoother_Calculator` to generate the base MACD line.
* **Flexible Signal Line Calculation:** The calculator uses a `switch` block and a reusable `CalculateMA` helper function to apply the user's chosen smoothing method for the signal line. This includes a dedicated, state-managed calculation for the `SuperSmoother` option.
* **Optimized Incremental Calculation:**
Unlike basic implementations that recalculate the entire history on every tick, this indicator employs an intelligent incremental algorithm.
* It utilizes the `prev_calculated` state to determine the exact starting point for updates.
* **Persistent State:** The internal SuperSmoother engines persist their state (`f1`, `f2`) between ticks, allowing the recursive calculation to continue seamlessly from the last known value.
* This results in **O(1) complexity** per tick, ensuring instant updates and zero lag, even on charts with extensive history.
* **Robust State Management:** All recursive calculations use persistent member variables to maintain their state between ticks, which is critical for the stability and accuracy of Ehlers' filters.
* **Flexible Signal Line Calculation:** The calculator dynamically instantiates either a third `Ehlers_Smoother_Calculator` or a `MovingAverage_Engine` for the signal line, depending on the user's choice. This ensures that the signal line calculation is also fully optimized and incremental.
* **Heikin Ashi Integration:** A "Factory Method" (`CreateSmootherInstance`) is used to instantiate the correct type of smoother (`standard` or `_HA`), allowing for clean Heikin Ashi integration.