trading-signals/dist/volatility/TR/TR.js

Technical indicators to run technical analysis with JavaScript / TypeScript.

import { IndicatorSeries } from '../../base/Indicator.js';
export class TR extends IndicatorSeries {
    #previousCandle;
    #twoPreviousCandle;
    getRequiredInputs() {
        return 2;
    }
    update(candle, replace) {
        const { high, low } = candle;
        const highLow = high - low;
        if (this.#previousCandle && replace) {
            this.#previousCandle = this.#twoPreviousCandle;
        }
        if (this.#previousCandle) {
            const highClose = Math.abs(high - this.#previousCandle.close);
            const lowClose = Math.abs(low - this.#previousCandle.close);
            this.#twoPreviousCandle = this.#previousCandle;
            this.#previousCandle = candle;
            return this.setResult(Math.max(highLow, highClose, lowClose), replace);
        }
        this.#twoPreviousCandle = this.#previousCandle;
        this.#previousCandle = candle;
        return this.setResult(highLow, replace);
    }
}
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