chart-patterns is a comprehensive TypeScript/JavaScript library that provides technical analysis tools for financial markets. This library includes traditional candlestick pattern recognition, volume analysis, order flow insights, and market structure identification.
| Tool | Description |
|---|---|
| Market Profile | Generates TPO profiles with Value Area, Initial Balance, and Point of Control. |
| Volume Profile | Builds a volume histogram with Point of Control and Value Area. |
| Value Area | Calculates Value Area, POC, and key volume levels from price data. |
| Tool | Description |
|---|---|
| Peak Detector | Finds swing highs/lows and directional ranges in price movement. |
| Pivot Points | Calculates classic pivot points and support/resistance levels. |
| Range Finder | Finds key support and resistance zones from price swings. |
| Zscore | Measures how far price deviates from the mean — useful for spotting extremes. |
| Zigzags | Identifies significant price swings, filtering out minor moves. |
Footprint candles built from the Orderflow service.
| Tool | Description |
|---|---|
| Stacked Imbalances | Finds clusters of aggressive buying or selling — potential turning points. |
| High Volume Node | Highlights price levels with exceptionally high traded volume. |
| Tool | Description |
|---|---|
| EMA | Exponential Moving Average — responds faster to price changes. |
| SMA | Simple Moving Average — smooths out price over a defined window. |
| RSI | Relative Strength Index — shows overbought/oversold conditions. |
| VWAP | Volume-Weighted Average Price — key level used by institutions. |
| Pattern | Description |
|---|---|
| Doji | Indicates indecision — open and close are nearly equal. |
| Engulfing | A reversal pattern where one candle fully engulfs the previous one. |
| Excess | Identifies candles with excess (tails/wicks) suggesting rejection. |
| Morning Star / Evening Star | Reversal patterns formed across three candles — bullish or bearish. |
import * as ta from 'chart-patterns';
import { IVolumeProfile, IMarketProfile, ILocalRange, IZScoreConfig } from 'chart-patterns/dist/types';
import { MARKET_PROFILE_PERIODS } from 'chart-patterns/dist/constants';
const marketProfiles: IMarketProfile[] = ta.MarketProfile.build({
candles,
candleGroupingPeriod: MARKET_PROFILE_PERIODS.DAILY,
tickSize: 0.1,
pricePrecision: 2,
tickMultiplier: 100,
timezone: 'Europe/London'
});
const volumeProfiles: IVolumeProfile[] = ta.VolumeProfile.build({
candles,
tickSize: 0.1,
period: MARKET_PROFILE_PERIODS.DAILY,
timezone: 'Europe/London'
});
// Z-Score configuration for peak/pattern detection algorithms
const zScoreConfig: IZScoreConfig = {
lag: 2, // Controls smoothing and adaptability to trend changes
threshold: 0.1, // Number of standard deviations to classify a signal
influence: 1 // How strongly signals affect future calculations (0-1)
};
const ranges: ILocalRange[] = ta.RangeBuilder.findRanges(candles, zScoreConfig);
// Create zigzag points for pattern recognition
const zigzags = ta.ZigZags.create(candles, zScoreConfig);-
Maket Profile
-
Ranges
