ml-gsd/lib/algorithms/tryMatchOneIntervalWithMinData.js

Global Spectral Deconvolution

export function tryMatchOneIntervalWithMinData(options) {
    const { x, lastK, minData, yThreshold, intervalWidth, intervalCenter, yData, } = options;
    let minDistance = Number.POSITIVE_INFINITY;
    let possible = -1;
    let newLastIndex = lastK;
    for (let k = newLastIndex + 1; k < minData.length; k++) {
        const centerIndex = minData[k];
        if (yData[centerIndex] <= yThreshold) {
            continue;
        }
        const deltaX = x[centerIndex];
        const currentDistance = Math.abs(deltaX - intervalCenter);
        if (currentDistance < intervalWidth) {
            if (currentDistance < minDistance) {
                possible = k;
            }
            newLastIndex = k;
        }
        if (currentDistance >= minDistance)
            break;
        minDistance = currentDistance;
    }
    return { lastIndex: newLastIndex, possible };
}
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