ml-gsd/lib/algorithms/getPeaksFromIntervals.js

Global Spectral Deconvolution

import { tryMatchOneIntervalWithMinData } from "./tryMatchOneIntervalWithMinData.js";
export function getPeakFromIntervals(options) {
    let lastK = -1;
    const peaks = [];
    const { x, ddY, yData, yThreshold, intervalR, intervalL, minData } = options;
    for (let i = 0; i < intervalL.length; i++) {
        const intervalWidth = (intervalR[i].x - intervalL[i].x) / 2;
        const intervalCenter = (intervalR[i].x + intervalL[i].x) / 2;
        const { possible = -1, lastIndex } = tryMatchOneIntervalWithMinData({
            x,
            lastK,
            minData,
            yThreshold,
            intervalWidth,
            intervalCenter,
            yData,
        });
        if (possible !== -1) {
            const centerIndex = minData[possible];
            const width = Math.abs(intervalR[i].x - intervalL[i].x);
            peaks.push({
                id: crypto.randomUUID(),
                x: x[centerIndex],
                y: yData[centerIndex],
                width,
                index: centerIndex,
                ddY: ddY[centerIndex],
                inflectionPoints: {
                    from: intervalL[i],
                    to: intervalR[i],
                },
            });
        }
        lastK = lastIndex;
    }
    return peaks;
}
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