Technical Analysis

ta.sma(value, period) -> number

ta.ema(value, period) -> number

ta.rma(value, period) -> number

ta.alma(value, length, offset, sigma, floor?) -> number

ta.swma(value) -> number

ta.wma(value, period) -> number

ta.vwma(price, volume, period) -> number

ta.hma(value, length) -> number

ta.linreg(value, period, offset?) -> number

ta.rsi(value, period) -> number

ta.stoch(source, high, low, length) -> number

ta.macd(value, fast?, slow?, signal?) -> { macd: number, signal: number, hist: number }

//@version=2
indicator("MACD Example", false)
const candles = subscribe(data.OHLCV)

function onBar(index) {
  const m = ta.macd(candles.close())
  plot("MACD", m.macd, { color: color.blue })
  plot("Signal", m.signal, { color: color.red })
  plotHistogram("Hist", m.hist, { color: m.hist >= 0 ? color.green : color.red })
}

ta.dmi(source, diLength, adxSmoothing) -> { plusDI: number, minusDI: number, adx: number }

//@version=2
indicator("DMI Example", false)
const candles = subscribe(data.OHLCV)

function onBar(index) {
  const d = ta.dmi(candles, 14, 14)
  plot("+DI", d.plusDI, { color: color.green })
  plot("-DI", d.minusDI, { color: color.red })
  plot("ADX", d.adx, { color: color.blue })
}

ta.accdist(source) -> number

//@version=2
indicator("Chaikin Oscillator", false)
const candles = subscribe(data.OHLCV)

function onBar(index) {
  const ad = ta.accdist(candles)
  const fast = ta.ema(ad, 3)
  const slow = ta.ema(ad, 10)
  plot("Chaikin", fast - slow)
}

ta.mfi(source, volume, length) -> number

ta.vwap(source, volume, anchor?, stdevMult?) -> number
ta.vwap(source, volume, anchor, stdevMult) -> { vwap: number, upper: number, lower: number }

//@version=2
indicator("VWAP Example", true)
const candles = subscribe(data.OHLCV)

function onBar(index) {
  const isNewSession = context.isNew && unix() % 86400 === 0
  const pv = ta.vwap(candles.close(), candles.volume())
  const bands = ta.vwap(candles.close(), candles.volume(), isNewSession, 2)

  plot("VWAP", pv, { color: color.blue })
  plot("Upper", bands.upper, { color: color.red })
  plot("Lower", bands.lower, { color: color.green })
}

ta.atr(high, low, close, period) -> number

ta.stdev(value, period) -> number

ta.bb(value, length, mult) -> { basis: number, upper: number, lower: number }

//@version=2
indicator("Bollinger Bands Example", false)
const candles = subscribe(data.OHLCV)

function onBar(index) {
  const bb = ta.bb(candles.close(), 20, 2)
  plot("Upper", bb.upper, { color: color.red })
  plot("Basis", bb.basis, { color: color.gray })
  plot("Lower", bb.lower, { color: color.green })
}

ta.highest(value, period) -> number

ta.max(value) -> number

ta.lowest(value, period) -> number

ta.pivothigh(source, leftbars, rightbars) -> number

//@version=2
indicator("Pivot High Example", true)
const candles = subscribe(data.OHLCV)

function onBar(index) {
  const ph = ta.pivothigh(candles.high(), 2, 2)
  plot("Pivot High", na(ph) ? NaN : ph, { color: color.red, offset: -2 })
}

ta.pivotlow(source, leftbars, rightbars) -> number

//@version=2
indicator("Pivot Low Example", true)
const candles = subscribe(data.OHLCV)

function onBar(index) {
  const pl = ta.pivotlow(candles.low(), 2, 2)
  plot("Pivot Low", na(pl) ? NaN : pl, { color: color.green, offset: -2 })
}

ta.median(value, length) -> number

ta.mode(value, length) -> number

ta.dev(value, length) -> number

ta.change(value, period?) -> number

ta.barssince(condition) -> number

ta.cum(value) -> number

ta.roc(value, period) -> number

ta.rising(value, length) -> boolean

ta.falling(value, length) -> boolean

ta.cross(a, b) -> boolean

ta.crossover(a, b) -> boolean

ta.crossunder(a, b) -> boolean

//@version=2
indicator("Crossover Example", true)
const candles = subscribe(data.OHLCV)

function onBar(index) {
  const fast = ta.ema(candles.close(), 9)
  const slow = ta.ema(candles.close(), 21)
  if (ta.crossover(fast, slow)) {
    plotMarker("Buy", candles.low(), { marker: shape.up, color: color.green })
  }
}