trading-signals/dist/util/getGrid.js

Technical indicators to run technical analysis with JavaScript / TypeScript.

export function getGrid({ levels, lower, spacing, tickSize, upper }) {
    const prices = [];
    if (spacing === 'arithmetic') {
        const step = (upper - lower) / (levels - 1);
        for (let i = 0; i < levels; i++) {
            prices.push(lower + step * i);
        }
    }
    else {
        const ratio = Math.pow(upper / lower, 1 / (levels - 1));
        for (let i = 0; i < levels; i++) {
            prices.push(lower * Math.pow(ratio, i));
        }
    }
    if (tickSize) {
        const roundToTick = (x) => Math.round(x / tickSize) * tickSize;
        return prices.map(roundToTick);
    }
    return prices;
}
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