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Documentation Index

Fetch the complete documentation index at: https://docs.darvas.app/llms.txt

Use this file to discover all available pages before exploring further.

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ta.rsi(source, length) - Relative Strength Index

Returns a value between 0-100. Overbought > 70, oversold < 30 by convention. 
// overlay = false
hline(70, { color: "#ef4444FF", style: "dashed" });
hline(50, { color: "#6b728060" });
hline(30, { color: "#22c55eFF", style: "dashed" });

plot("RSI", null, { color: "#a78bfaFF" });

onBar(() => {
  plot("RSI", ta.rsi(ctx.close, 14));
});

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ta.macd(source, fast?, slow?, signal?) - MACD

Returns an object { macd, signal, hist }. Defaults: fast=12, slow=26, signal=9. 
plot("MACD",   null, { color: "#22c55eFF" });
plot("Signal", null, { color: "#f59e0bFF" });
plot("Hist",   null, { style: "histogram" });

onBar(() => {
  const m = ta.macd(ctx.close, 12, 26, 9);
  if (na(m.macd)) return;
  plot("MACD",   m.macd);
  plot("Signal", m.signal);
  plot("Hist",   m.hist);
});

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ta.stoch(source, high, low, length) - Stochastic %K

Returns 0-100. Pass close, high, low as the first three sources. 
onBar(() => {
  const k = ta.stoch(ctx.close, ctx.high, ctx.low, 14);
  plot("Stoch %K", k);
});

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ta.cci(source, length) - Commodity Channel Index

Typical input is ctx.hlc3 (typical price). Returns an unbounded oscillator around 0. 
onBar(() => {
  plot("CCI", ta.cci(ctx.hlc3, 20));
});

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ta.mom(source, length) - Momentum

Current value minus the value length bars ago. Unbounded. 
onBar(() => {
  plot("Momentum", ta.mom(ctx.close, 10));
});

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ta.roc(source, length) - Rate of Change

Percentage change from length bars ago: (close - close[length]) / close[length] * 100. 
onBar(() => {
  plot("ROC%", ta.roc(ctx.close, 12));
});

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ta.dmi(high, low, close, length) - Directional Movement Index

Returns { plus, minus, adx }. plus = +DI, minus = -DI, adx = ADX. 
plot("+DI", null, { color: "#22c55eFF" });
plot("-DI", null, { color: "#ef4444FF" });
plot("ADX", null, { color: "#f59e0bFF" });

onBar(() => {
  const d = ta.dmi(ctx.high, ctx.low, ctx.close, 14);
  plot("+DI",  d.plus);
  plot("-DI",  d.minus);
  plot("ADX",  d.adx);
});

Moving averages

Trend smoothing functions.

Volatility

ATR, Bollinger Bands, standard deviation.

RSI divergence example

Full working RSI indicator with divergence detection.

MACD histogram example

Full working MACD implementation.