tala

Technical Analysis Library for Assets — a TypeScript library of stock indicators with a fluent chain API, zero runtime dependencies, and dual CJS/ESM output.

📖 Full documentation →

Install

npm install @jimzandueta/tala

Quick Start

import { tala } from '@jimzandueta/tala'

const result = tala()
  .sma(14)
  .ema(12)
  .rsi(14)
  .macd({ fastPeriod: 12, slowPeriod: 26, signalLength: 9 }, { includeSignal: true })
  .run(history)

result[0].sma14   // most recent SMA-14
result[0].rsi14   // most recent RSI (0–100)
result[0].macd    // most recent MACD line

Cross/signal events with structured output:

const { history: enriched, signals } = tala()
  .sma(14)
  .macdCross()
  .rsiCross()
  .run(history, { structured: true })

signals.macdCross  // PriceHistoryEntry[] of cross events
signals.rsiCross   // PriceHistoryEntry[] of cross events

Indicators

| Category | Methods | |---|---| | Moving Averages | .sma() .ema() .wema() .alma() .trix() | | Momentum | .macd() .rsi() .cci() .adx() .fisher() .sts() .williamsR() .stochRSI() | | Volatility | .bb() .atr() | | Volume | .obv() .vwap() | | Price Levels | .pivotT() .fibRL() | | Cross Signals | .macdCross() .rsiCross() .cciCross() .almaCross() .fisherCross() |

See the full API reference for parameters, output keys, and examples.

License

MIT