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refactor: Optimized for incremental calculation

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Toh4iem9
2025-11-29 11:36:38 +01:00
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Indicators/MyIndicators/Authors/Ehlers/2_Oscillators/Ehlers_Smoother_Momentum_Pro.md
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# Ehlers Smoother Momentum Professional
# Ehlers Smoother Momentum Pro
## 1. Summary (Introduction)
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## 3. MQL5 Implementation Details
* **Unified Calculator (`Ehlers_Smoother_Calculator.mqh`):** This indicator uses the exact same, powerful calculator engine as the `Ehlers_Smoother_Pro`. The only difference is that it is initialized in `SOURCE_MOMENTUM` mode.
* **Heikin Ashi Integration:** The indicator fully supports calculation on smoothed Heikin Ashi data (`HA Close - HA Open`).
* **Stability via Full Recalculation:** The indicator employs a full recalculation on every `OnCalculate` call to ensure the stateful, recursive calculation is always stable.
* **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 momentum buffer (`m_price`) and the output buffer (`filter_buffer`) persist their state between ticks. This allows the recursive IIR filter to continue seamlessly from the last known values without re-processing the entire history.
* This results in **O(1) complexity** per tick, ensuring instant updates and zero lag, even on charts with extensive history.
* **Heikin Ashi Integration:** The indicator fully supports calculation on smoothed Heikin Ashi data (`HA Close - HA Open`), leveraging the same optimized engine.
## 4. Parameters