trading-signals/dist/trend/DEMA/DEMA.js

Technical indicators to run technical analysis with JavaScript / TypeScript.

import { EMA } from '../EMA/EMA.js';
import { IndicatorSeries } from '../../base/Indicator.js';
export class DEMA extends IndicatorSeries {
    #inner;
    #outer;
    interval;
    constructor(interval) {
        super();
        this.interval = interval;
        this.#inner = new EMA(interval);
        this.#outer = new EMA(interval);
    }
    getRequiredInputs() {
        return this.#outer.getRequiredInputs();
    }
    update(price, replace) {
        const innerResult = this.#inner.update(price, replace);
        const outerResult = this.#outer.update(innerResult, replace);
        return this.setResult(innerResult * 2 - outerResult, replace);
    }
    get isStable() {
        return this.#outer.isStable;
    }
}
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