trading-signals/dist/momentum/AO/AO.js

Technical indicators to run technical analysis with JavaScript / TypeScript.

import { SMA } from '../../trend/SMA/SMA.js';
import { TrendIndicatorSeries, TradingSignal } from '../../base/Indicator.js';
export class AO extends TrendIndicatorSeries {
    long;
    short;
    shortInterval;
    longInterval;
    constructor(shortInterval, longInterval, SmoothingIndicator = SMA) {
        super();
        this.shortInterval = shortInterval;
        this.longInterval = longInterval;
        this.short = new SmoothingIndicator(shortInterval);
        this.long = new SmoothingIndicator(longInterval);
    }
    getRequiredInputs() {
        return this.long.getRequiredInputs();
    }
    update({ high, low }, replace) {
        const medianPrice = (low + high) / 2;
        this.short.update(medianPrice, replace);
        this.long.update(medianPrice, replace);
        if (this.long.isStable) {
            return this.setResult(this.short.getResultOrThrow() - this.long.getResultOrThrow(), replace);
        }
        return null;
    }
    calculateSignalState(result) {
        const hasResult = result !== null && result !== undefined;
        const isBullish = hasResult && result > 0;
        const isBearish = hasResult && result < 0;
        switch (true) {
            case !hasResult:
                return TradingSignal.UNKNOWN;
            case isBullish:
                return TradingSignal.BULLISH;
            case isBearish:
                return TradingSignal.BEARISH;
            default:
                return TradingSignal.SIDEWAYS;
        }
    }
}
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