Add a Parkinson realized volatility indicator

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  • #9864 来自 @rairishi764 —— 已关闭,未合并

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Issue 类型
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描述清晰度
基本清楚
活跃度
活跃
技术栈
csharp
领域
fintech-quant

调研方向

Start with the existing RogersSatchellVolatility indicator and its spy_with_rsv.csv test fixture to follow the indicator and unit-test patterns. Review the QCAlgorithm.RV(...) helper entry point and the independently computed reference CSV; done means the Parkinson realized-volatility indicator, unit tests, and helper are added consistently.

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描述

LEAN ships 100+ indicators including several volatility measures (AverageTrueRange, RogersSatchellVolatility, ImpliedVolatility, Keltner/Bollinger bands), but has no realized volatility indicator — the standard backward-looking measure of historical price variation, as distinct from ImpliedVolatility's forward-looking, options-derived measure.

I'd like to add RealizedVolatility, implementing the Parkinson (1980) high-low range estimator:

term_t = ln(High_t / Low_t)^2 / (4 * ln(2))
RV     = sqrt(mean(term_t for t in window))

It only needs High/Low (via BarIndicator), making it a natural first realized-volatility addition — Garman-Klass/Yang-Zhang variants that also use Open/Close could follow as separate PRs once the naming/API pattern is agreed here.

I have a working implementation with unit tests (verified against an independently-computed reference CSV, following the same pattern as RogersSatchellVolatility/spy_with_rsv.csv), plus the QCAlgorithm.RV(...) helper method. Will open a PR referencing this issue once it's created.

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