ta‑math Library

Reference of helper functions exposed by `ta`

Namespace: ta All functions expect plain JavaScript arrays (number[]). Return type: Array vs. last value: All functions above produce the complete calculated series. If you only need the latest point, pick the last element: const lastRsi = ta.rsi(close, 14).at(-1);

---

Category	Function	Signature (defaults)	Returns
Volume / Accumulation	adl	adl(high: number[], low: number[], close: number[], volume: number[])	number[]
	cho	cho(high: number[], low: number[], close: number[], volume: number[], winShort = 3, winLong = 10)	number[]
	mfi	mfi(high: number[], low: number[], close: number[], volume: number[], window = 14)	number[]
Volatility & Range	atr	atr(high: number[], low: number[], close: number[], window = 14)	number[]
	stdev	stdev(close: number[], window = 15)	number[]
	bb	bb(close: number[], window = 15, mult = 2)	{ upper: number[], middle: number[], lower: number[] }
	bbp	bbp(close: number[], window = 15, mult = 2)	number[]
Momentum / Trend	adx	adx(high: number[], low: number[], close: number[], window = 14)	number[]
	ao	ao(high: number[], low: number[], winShort = 5, winLong = 34)	number[]
	ac	ac(high: number[], low: number[], winSma = 5, winShort = 5, winLong = 34)	number[]
	cci	cci(high: number[], low: number[], close: number[], window = 20, mult = 0.015)	number[]
	rsi	rsi(close: number[], window = 14)	number[]
	roc	roc(close: number[], window = 14)	number[]
	kst	kst(close: number[], w1 = 10, w2 = 15, w3 = 20, w4 = 30, s1 = 10, s2 = 10, s3 = 10, s4 = 15, sig = 9)	{ kst: number[], signal: number[] }
	vi	vi(high: number[], low: number[], close: number[], window = 14)	{ plusVI: number[], minusVI: number[] }
	williams	williams(high: number[], low: number[], close: number[], window = 14)	number[]
	stoch	stoch(high: number[], low: number[], close: number[], window = 14, signal = 3, smooth = 1)	{ k: number[], d: number[] }
Moving Averages	sma	sma(close: number[], window = 15)	number[]
	ema	ema(close: number[], window = 10)	number[]
	wma	wma(close: number[], window = 10)	number[]
	dema	dema(close: number[], window = 10)	number[]
	tema	tema(close: number[], window = 10)	number[]
MACD	macd	macd(close: number[], winShort = 12, winLong = 26, winSig = 9)	{ macd: number[], signal: number[], histogram: number[] }
Price Overlays	psar	psar(high: number[], low: number[], factor = 0.02, maxFactor = 0.2)	number[]
	vwap	vwap(high: number[], low: number[], close: number[], volume: number[])	number[]
	zigzag	zigzag(time: number[], high: number[], low: number[], percent = 15)	{ peaks: number[], valleys: number[] }
	vbp	vbp(close: number[], volume: number[], zones = 12, left = 0, right = NaN)	Array<{ price: number; volume: number }>

Quick Example

// 20‑period Simple Moving Average of typical price
const smaSeries = ta.sma(haOhlc4Series, 20);
const latestSma  = smaSeries.at(-1);