High precision trading indicators: RSI, Bollinger Bands, MACD, EMA, MA, many moving averages and oscillators. Trend and reversal detection patterns available.
<script src='/bignumber.min.js'></script><script src='/precision-trading-indicators.min.js'></script>npm install bignumber.jsnpm install precision-trading-indicatorsconst indicators = new PrecisionTradingIndicators.default(BigNumber);import BigNumber from 'bignumber.js';
import PrecisionTradingIndicators from 'precision-trading-indicators';
const indicators = new PrecisionTradingIndicators(BigNumber);const {
EMA,
MA,
MACD,
BOLLINGER_BANDS,
ADX,
MFI,
RSI,
STOCHASTIC_RSI,
getTrend,
getMomentum
} = indicators;
const period = 14;
const data = [
[1675382400000, "23493.00", "23719.90", "23201.00", "23424.70", "470831.438", 1675468799999, "11047679446.95720", 3231984, "232037.850", "5445353439.87534", "0"],
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];
const ohlcv = data.reduce(
(acc, [timestamp, open, high, low, close, volume]) => ({
timestamp: [...acc.open, timestamp],
open: [...acc.open, BigNumber(open)],
high: [...acc.high, BigNumber(high)],
low: [...acc.low, BigNumber(low)],
close: [...acc.close, BigNumber(close)],
volume: [...acc.volume, volume],
}),
{ timestamp: [], open: [], high: [], low: [], close: [], volume: [] }
);
const {close} = ohlcv;
const rsi = RSI(close, period); //outputs and array
//STOCHASTIC_RSI
//outputs an object with 4 array elements {K <array>, D <array>, crossInterval <number>, crossType <string: 'death' || 'golden'>}
//STOCHASTIC_RSI_VALUES are in D.
//crossInterval indicates in which intervar K and D lines crossed. 0 for the current interval, 1 for the previous interval...
//crossInterval indicates the current trend after the last cross.
const stochasticRsi = STOCHASTIC_RSI(rsi, period, 3, 3);
//MACD
//outputs an object with 5 array elements {diff <array>, dea <array>, histogram <array>, crossInterval <number>, crossType <string: 'death' || 'golden'>}
//crossInterval indicates in which intervar diff and dea lines crossed. 0 for the current interval, 1 for the previous interval...
//crossInterval indicates the current trend after the last cross..
const macd = MACD(close, 12, 26, 9);
//BOLLINGER_BANDS
//outputs an object with 4 array elements {upper <array>, lower <array>, mid <array>, loc <number>}
//loc is a percentage numeric representation of the current price in bollinger bands.
const bollingerBands = BOLLINGER_BANDS(close, 20, 2);
const {mid} = bollingerBands;
const adx = ADX(ohlcv, period); //outputs and array
const mfi = MFI(ohlcv, period); //outputs and array
const ema20 = EMA(close, 20); //outputs and array
const ema40 = EMA(close, 40); //outputs and array
const momentum = getMomentum({data: close, fast: ema20, slow: ema40}); //ouputs a <string: 'up' || 'strong up' || 'down' || 'strong down' || 'neutral'>
const trend = getTrend(mid, period); //ouputs a <string: 'up' || 'down' || 'neutral'> indicating the direction of the trend
const ma = MA(close, period); //outputs and array
console.log({ema20, ema40, ma, rsi, stochasticRsi, macd, trend, momentum, bollingerBands, adx, mfi});