kingchenc
9eb46f144a
Closes the remaining TA-Lib function-name gap by shipping each missing or bundled-only function as a real, standalone, fully-covered indicator. 19 new indicators across 5 families; mod-count 295 -> 314. ### Trend & Directional — Directional Movement components - `PlusDm` (`PLUS_DM`), `MinusDm` (`MINUS_DM`) — Wilder-smoothed ±DM. - `PlusDi` (`PLUS_DI`), `MinusDi` (`MINUS_DI`) — `100·smoothed(±DM)/ATR`. - `Dx` (`DX`) — `100·|+DI−−DI|/(+DI+−DI)`. ### Price Statistics - `AvgPrice` (`AVGPRICE`) — `(O+H+L+C)/4`. - `MidPoint` (`MIDPOINT`) — `(max+min)/2` of a scalar series over N. - `MidPrice` (`MIDPRICE`) — `(highestHigh+lowestLow)/2` over N. - `LinRegIntercept` (`LINEARREG_INTERCEPT`) — OLS intercept. - `Tsf` (`TSF`) — time series forecast `a + b·period`. ### Momentum Oscillators - `Rocp` (`ROCP`), `Rocr` (`ROCR`), `Rocr100` (`ROCR100`) — ROC ratio forms. ### Trailing Stops - `SarExt` (`SAREXT`) — Parabolic SAR with start value, reversal offset, separate long/short acceleration, signed output. ### Trend & Directional — MACD variants - `MacdFix` (`MACDFIX`) — MACD fixed 12/26. - `MacdExt` (`MACDEXT`) — MACD with a selectable moving-average type per line (new public `MaType` enum: SMA/EMA/WMA/DEMA/TEMA/TRIMA). ### Ehlers / Cycle (DSP) — Hilbert transform outputs - `HtPhasor` (`HT_PHASOR`) — in-phase / quadrature components. - `HtDcPhase` (`HT_DCPHASE`) — dominant-cycle phase (degrees). - `HtTrendMode` (`HT_TRENDMODE`) — trend (1) vs cycle (0) classification. Each indicator ships the full chain: core + every-branch unit tests, Python / Node / WASM bindings, fuzz coverage, README counter + family rows, CHANGELOG. `cargo test`, doctests, `clippy -D warnings`, `npm test` and pytest all green locally; mod-count == lib-block == README counter (314), FAMILIES total 309.
Wickra — Node.js
Streaming-first technical indicators for Node.js. npm install wickra —
prebuilt native binary, no system dependencies.
Wickra is a multi-language technical-analysis library with a Rust core and bindings for Python, Node.js, and WebAssembly. Every indicator is an O(1) streaming state machine, so live trading bots and historical backtests share the exact same implementation. This package is the Node.js binding (napi-rs); it exposes 200+ streaming-first indicators across sixteen families.
Install
npm install wickra
The native addon ships as a prebuilt binary per platform (Linux, macOS, Windows — x64 and arm64), selected automatically through optional dependencies. There is nothing to compile.
Quick start
const wickra = require('wickra');
// Batch: run an indicator over a whole array.
const prices = Array.from({ length: 1000 }, (_, i) => 100 + i * 0.1);
const values = new wickra.RSI(14).batch(prices); // null during warmup
// Streaming: the same indicator, fed tick by tick in O(1).
const rsi = new wickra.RSI(14);
for (const price of liveFeed) {
const value = rsi.update(price); // no recomputation over history
if (value !== null && value > 70) {
console.log('overbought');
}
}
batch(prices) and feeding the same prices through update() produce
identical values — the equivalence is enforced by the test suite.
Documentation
The full indicator catalogue, guides, quickstarts, and API reference live in the main repository and documentation site:
- Repository & full indicator list: https://github.com/wickra-lib/wickra
- Docs (quickstarts, cookbook, TA-Lib migration): https://docs.wickra.org
- Runnable examples:
examples/node/
Wickra ships four bindings — Python, Node.js, WebAssembly, and Rust — that all
expose the same indicators from the shared, unsafe-forbidden Rust core.
Disclaimer
Wickra is an indicator toolkit, not a trading system. The values it computes are deterministic transforms of the input data — they are not financial advice and do not predict the market. Any use in a live trading context is at your own risk. The library is provided as is, without warranty of any kind.
License
Licensed under the PolyForm Noncommercial License 1.0.0. Personal projects, research, education, non-profits, and hobby trading bots are all fine; the one thing not allowed is commercial sale of the software or of services built around it. See LICENSE.