diff --git a/Indicators/MyIndicators/HMA_MTF_Pro.md b/Indicators/MyIndicators/HMA_MTF_Pro.md new file mode 100644 index 0000000..a740ef5 --- /dev/null +++ b/Indicators/MyIndicators/HMA_MTF_Pro.md @@ -0,0 +1,54 @@ +# Hull Moving Average (HMA) MTF Pro + +## 1. Summary (Introduction) + +The `HMA_MTF_Pro` is a multi-timeframe (MTF) version of the Hull Moving Average. This indicator calculates the HMA on a **higher, user-selected timeframe** and projects its extremely responsive, low-lag trendline onto the current, lower-timeframe chart. + +This allows traders to visualize the underlying trend from a broader perspective. The higher-timeframe HMA acts as a superior dynamic benchmark for support, resistance, and overall market direction, leveraging Alan Hull's formula to reduce lag while maintaining smoothness. + +The indicator is highly versatile: if the user selects the current chart's timeframe, it functions identically to the standard `HMA_Pro` indicator. It also fully supports both **standard** and **Heikin Ashi** price data. + +## 2. Mathematical Foundations and Calculation Logic + +The underlying calculation is identical to the standard HMA, utilizing three separate Weighted Moving Averages (WMAs) to eliminate lag. The key innovation here is the multi-timeframe application. + +### Calculation Steps (Algorithm) + +1. **Fetch Higher Timeframe Data:** The indicator retrieves the OHLC price data for the user-selected higher timeframe (`htf`). +2. **Calculate HMA on the Higher Timeframe:** The complete multi-stage HMA calculation (WMA(n/2), WMA(n), WMA(sqrt(n))) is performed using the `htf` price data. +3. **Project to Current Chart:** The calculated `htf` HMA values are mapped to the current chart, creating a characteristic "step-like" line that represents the higher timeframe's trend. + +## 3. MQL5 Implementation Details + +* **Self-Contained and Robust:** This indicator is fully self-contained and does not depend on any external indicator files (`iCustom`). It directly fetches the required higher-timeframe price data using built-in `Copy...` functions for maximum stability. + +* **Modular Calculation Engine (`HMA_Calculator.mqh`):** The indicator reuses the exact same calculation engine as the standard `HMA_Pro`. This ensures mathematical consistency across all versions. + +* **Optimized Incremental Calculation (O(1)):** + Unlike basic MTF indicators that recalculate the entire history on every tick, this indicator employs a sophisticated incremental algorithm: + * **HTF State Tracking:** It tracks the calculation state of the higher timeframe separately (`g_htf_prev_calculated`). + * **Persistent Buffers:** The internal buffers for the higher timeframe (including the intermediate `Raw HMA`) are maintained globally, preserving the state between ticks. + * **Efficient Mapping:** The projection loop only updates the bars corresponding to the new data. + * This ensures the indicator remains lightweight and high-performance even on heavy load. + +* **Dual-Mode Logic:** The `OnCalculate` function contains a smart branching logic. + * If a higher timeframe is selected, it performs the optimized MTF data fetching and projection process. + * If the current timeframe is selected, it bypasses the MTF logic and functions identically to the standard `HMA_Pro`. + +## 4. Parameters + +* **Upper Timeframe (`InpUpperTimeframe`):** The higher timeframe on which the HMA will be calculated. If set to `PERIOD_CURRENT`, the indicator will run on the current chart's timeframe. +* **HMA Period (`InpPeriodHMA`):** The main lookback period for the indicator. (Default: `14`). +* **Applied Price (`InpSourcePrice`):** The source price for the calculation (Standard or Heikin Ashi). + +## 5. Usage and Interpretation + +The MTF version of HMA is an exceptionally powerful tool for multi-timeframe trend analysis. + +* **Major Trend Filter:** The slope and position of the MTF HMA line provide a clear view of the dominant market condition. + * If the price is consistently above a **rising** MTF HMA, the market is in a strong uptrend. + * If the price is consistently below a **falling** MTF HMA, the market is in a strong downtrend. + +* **Dynamic Support and Resistance:** The MTF HMA line acts as a strong support/resistance level. Because HMA is so responsive, it often hugs the price action closely, providing tight dynamic stops. + +* **Early Reversal Warning:** A turn in the MTF HMA line (e.g., from rising to falling) is often one of the earliest reliable signals that the higher timeframe trend is changing.