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/* * Pull Breaks Values for Jenks * * the second part of the jenks recipe: take the calculated matrices * and derive an array of n breaks. * * @private */function jenksBreaks(data, lowerClassLimits, nClasses) {    let k = data.length;    const kclass = [];    let countNum = nClasses;
    // the calculation of classes will never include the upper    // bound, so we need to explicitly set it    kclass[nClasses] = data[data.length - 1];
    // the lowerClassLimits matrix is used as indices into itself    // here: the `k` variable is reused in each iteration.    while (countNum > 0) {        kclass[countNum - 1] = data[lowerClassLimits[k][countNum] - 1];        k = lowerClassLimits[k][countNum] - 1;        countNum--;    }
    return kclass;}
export default jenksBreaks;