This project is part of the @thi.ng/umbrella monorepo.
This package provides a set of transducers for technical (financial) and statistical analysis and replaces the older @thi.ng/indicators package.
- Bollinger Bands
- Donchian Channel
- EMA (Exponential Moving Average)
- HMA (Hull Moving Average)
- MACD (Moving Average Convergence/Divergence)
- Momentum
- ROC (Rate of change)
- RSI (Relative Strength Index)
- SD (Standard Deviation)
- SMA (Simple Moving Average)
- Stochastic oscillator
- TRIX (Triple smoothed EMA)
- WMA (Weighted Moving Average)
yarn add @thi.ng/transducers-statsFor some realworld use, please see the crypto chart example.
import * as tx from "@thi.ng/transducers";
import * as stats from "@thi.ng/transducers-stats";
// Simple moving average (SMA) (sliding window size 5)
[...tx.iterator(stats.sma(5), [1,2,3,4,5,10,11,12,13,14,9,8,7,6,5])]
// [ 3, 4.8, 6.6, 8.4, 10.2, 12, 11.8, 11.2, 10.2, 8.8, 7 ]
// compute multiple stats at once
tx.transduce(
tx.comp(
tx.multiplexObj({
sma: stats.sma(5),
ema: stats.ema(5),
wma: stats.wma(5)
}),
// ignore first `period-1` values
// (because MAs require at least `period` inputs to warm up)
tx.drop(4)
),
tx.push(),
[1,2,3,4,5,10,11,12,13,14,9,8,7,6,5]
);
// [ { wma: 3.6666666666666665, ema: 3, sma: 3 },
// { wma: 6, ema: 5.333333333333333, sma: 4.8 },
// { wma: 8.066666666666666, ema: 7.222222222222221, sma: 6.6 },
// { wma: 9.866666666666667, ema: 8.814814814814815, sma: 8.4 },
// { wma: 11.4, ema: 10.209876543209877, sma: 10.2 },
// { wma: 12.666666666666666, ema: 11.473251028806585, sma: 12 },
// { wma: 11.666666666666666, ema: 10.64883401920439, sma: 11.8 },
// { wma: 10.4, ema: 9.76588934613626, sma: 11.2 },
// { wma: 9, ema: 8.843926230757507, sma: 10.2 },
// { wma: 7.6, ema: 7.895950820505004, sma: 8.8 },
// { wma: 6.333333333333333, ema: 6.93063388033667, sma: 7 } ]- Karsten Schmidt
© 2018 Karsten Schmidt // Apache Software License 2.0