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feat(dynamics): add PTA - Ehlers Precision Trend Analysis

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TASC Sep 2024. Dual 2-pole Butterworth highpass bandpass for
near-zero-lag trend extraction. HP(long) - HP(short) preserves
cycles between shortPeriod and longPeriod.

- Core: Pta.cs with O(1) streaming, Span batch, state rollback
- Quantower: PtaIndicator adapter with LineSeries + SetValue
- Tests: 31 lib + 11 Quantower (all passing)
- Pine: pta.pine PineScript v6 reference
- Docs: Pta.md canonical template v3
- Python: Exports.Generated.cs + _bridge.py + dynamics.py
- Indexes: _sidebar.md, lib/_index.md, dynamics/_index.md,
  docs/indicators.md, docs/pinescript.md
This commit is contained in:
Miha Kralj
2026-03-17 17:25:17 -07:00
parent 84d12e5706
commit aec3a64e4e
14 changed files with 1023 additions and 1 deletions
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docs/indicators.md
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@@ -246,6 +246,7 @@ Indicators measuring trend strength, regime, and directional movement quality.
| [**PFE**](../lib/dynamics/pfe/Pfe.md) | Polarized Fractal Efficiency | Fractal path efficiency as trend strength |
| [**PLUS_DI**](../lib/dynamics/plusdi/PlusDi.md) | Plus Directional Indicator | Upward DI (0-100) |
| [**PLUS_DM**](../lib/dynamics/plusdm/PlusDm.md) | Plus Directional Movement | Smoothed upward DM |
| [**PTA**](../lib/dynamics/pta/Pta.md) | Ehlers Precision Trend Analysis | Dual highpass bandpass near-zero-lag trend |
| [**QSTICK**](../lib/dynamics/qstick/Qstick.md) | Qstick | Average close-open difference |
| [**RAVI**](../lib/dynamics/ravi/Ravi.md) | Chande Range Action Verification Index | Dual-SMA divergence as trend strength |
| [**SUPER**](../lib/dynamics/super/Super.md) | SuperTrend | ATR-based trend bands |
docs/pinescript.md
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@@ -277,6 +277,7 @@ Is there a trend? How strong? These indicators answer that.
| PFE | Polarized Fractal Efficiency | [pfe.pine](../lib/dynamics/pfe/pfe.pine) |
| PLUS_DI | Plus Directional Indicator | [plusdi.pine](../lib/dynamics/plusdi/plusdi.pine) |
| PLUS_DM | Plus Directional Movement | [plusdm.pine](../lib/dynamics/plusdm/plusdm.pine) |
| PTA | Ehlers Precision Trend Analysis | [pta.pine](../lib/dynamics/pta/pta.pine) |
| QSTICK | Qstick Indicator | [qstick.pine](../lib/dynamics/qstick/qstick.pine) |
| RAVI | Chande Range Action Verification Index | [ravi.pine](../lib/dynamics/ravi/ravi.pine) |
| SUPER | SuperTrend | [super.pine](../lib/dynamics/super/super.pine) |