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v0.8.6: update indicator docs, ndepend tooling, ALMA refactor, gitignore cleanup

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Miha Kralj
2026-03-13 13:46:52 -07:00
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lib/dynamics/ravi/Ravi.md
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@@ -13,9 +13,7 @@
| **PineScript** | [ravi.pine](ravi.pine) |
- RAVI (Range Action Verification Index) measures trend strength by computing the absolute percentage divergence between a short-period SMA and a lon...
- Parameterized by `shortperiod` (default 7), `longperiod` (default 65).
- Output range: Varies (see docs).
- Requires `longPeriod` bars (default 65) of warmup before first valid output (IsHot = true).
- **Similar:** [ADX](../adx/Adx.md), [Chop](../chop/Chop.md) | **Complementary:** Moving average crossover for entries | **Trading note:** Range Action Verification Index; ratio of fast/slow MA difference to slow MA. Trend filter.
- Validated against TA-Lib, Skender, and Tulip reference implementations where available.
RAVI (Range Action Verification Index) measures trend strength by computing the absolute percentage divergence between a short-period SMA and a long-period SMA. Created by Tushar Chande and published in *Beyond Technical Analysis* (Wiley, 2001), the indicator classifies markets into trending (RAVI > 3%) and ranging (RAVI < 3%) regimes using a single threshold. With default parameters (short=7, long=65), RAVI requires 65 bars of warmup for the first valid reading. The core computation is three operations per bar in streaming mode: two running-sum updates and one division. No square roots, no exponentials, no recursion. The entire indicator reduces to normalized SMA spread, making it one of the cheapest dynamics classifiers available.
@@ -247,4 +245,4 @@ Key validation points:
- Chande, Tushar S. "Adapting Moving Averages to Market Volatility." *Stocks & Commodities*, V10:3, 1992. pp. 108-114. (VIDYA introduction; RAVI is the companion trend classifier.)
- Chande, Tushar S., and Kroll, Stanley. *The New Technical Trader: Boost Your Profit by Plugging into the Latest Indicators*. John Wiley & Sons, 1994. ISBN: 0471597805.
- Wilder, J. Welles. *New Concepts in Technical Trading Systems*. Trend Research, 1978. (ADX reference for comparison.)
- PineScript reference: `ravi.pine` in indicator directory.
- PineScript reference: `ravi.pine` in indicator directory.