gavindiaz/wickra
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

feat: TA-Lib candlestick patterns — gap-three-methods/stalled/stick-sandwich/takuri (part 8 of 9) (#140)

Browse Source 
Adds five TA-Lib candlestick patterns, each a streaming `Indicator<Input = Candle, Output = f64>` emitting the family's uniform `±1.0 / 0.0` sign convention, fully wired across the Rust core, Python / Node / WASM bindings, fuzz target and reference tests.

- **Upside Gap Three Methods** (`CDLXSIDEGAP3METHODS`) — a 3-bar bullish continuation: two white candles gap up, then a black candle opens within the second body and closes within the first; bullish +1.
- **Downside Gap Three Methods** (`CDLXSIDEGAP3METHODS`) — the bearish mirror: two black candles gap down, then a white candle opens within the second body and closes within the first; bearish -1.
- **Stalled Pattern** (`CDLSTALLEDPATTERN`) — a 3-bar bearish reversal warning: two long white candles then a small white candle riding the shoulder, signalling the rally is stalling; bearish -1.
- **Stick Sandwich** (`CDLSTICKSANDWICH`) — a 3-bar bullish reversal: two black candles closing at the same level sandwich a white candle, marking a support floor; bullish +1.
- **Takuri** (`CDLTAKURI`) — a single-bar bullish reversal, a strict Dragonfly Doji with a negligible upper shadow and very long lower shadow; bullish +1.

Body and shadow thresholds follow the geometric house style (fixed fractions of the bar range) rather than TA-Lib's rolling averages. Upside / Downside Gap Three Methods share the `CDLXSIDEGAP3METHODS` code, so the second carries a manual CHANGELOG entry (as with Rising / Falling Three Methods).

Counter 279 → 284 (mod-count == lib counted block; FAMILIES total 274 → 279).

Stacked on #139 (`feat/cdl-lines`); base retargets to `main` once the predecessor merges.
This commit is contained in:
kingchenc
2026-06-02 17:24:42 +02:00
committed by GitHub
parent c2c85c7ecf
commit 4d0bc08efd
19 changed files with 1262 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files
CHANGELOG.md
+5
View File
@@ -62,6 +62,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
- **Short Line** — a single short-bodied candle with short shadows; bullish +1 (white) or bearish -1 (black) by colour (`CDLSHORTLINE`).
- **Rising Three Methods** — a 5-bar bullish continuation: a long white candle, three small pullback bars holding within its range, then a white breakout to new highs; bullish +1 (`CDLRISEFALL3METHODS`).
- **Falling Three Methods** — the bearish mirror of rising three methods: a long black candle, three small bars holding within its range, then a black breakdown to new lows; bearish -1 (`CDLRISEFALL3METHODS`).
- **Upside Gap Three Methods** — a 3-bar bullish continuation: two white candles gap up, then a black candle opens within the second body and closes within the first; bullish +1 (`CDLXSIDEGAP3METHODS`).
- **Downside Gap Three Methods** — the bearish mirror of upside gap three methods: two black candles gap down, then a white candle opens within the second body and closes within the first; bearish -1 (`CDLXSIDEGAP3METHODS`).
- **Stalled Pattern** — a 3-bar bearish reversal warning: two long white candles then a small white candle riding the shoulder, signalling the rally is stalling; bearish -1 (`CDLSTALLEDPATTERN`).
- **Stick Sandwich** — a 3-bar bullish reversal: two black candles closing at the same level sandwich a white candle, marking a support floor; bullish +1 (`CDLSTICKSANDWICH`).
- **Takuri** — a single-bar bullish reversal, a strict Dragonfly Doji with a negligible upper shadow and very long lower shadow; bullish +1 (`CDLTAKURI`).
- **Derivatives family — funding & open interest (part 1).** A new family of
indicators that consume a perpetual / futures tick (`DerivativesTick`,
bundling funding rate, mark / index / futures price, open interest,