Function ArgSort

catboost/private/libs/algo_helpers/error_functions.cpp:116–132

}

static TVector<int> ArgSort(
    int start,
    int count,
    const float* targets
) {
    TVector<int> labelOrder(count);
    std::iota(labelOrder.begin(), labelOrder.end(), start);
    StableSort(
        labelOrder.begin(),
        labelOrder.end(),
        [=] (int lhs, int rhs) {
            return std::abs(targets[lhs]) < std::abs(targets[rhs]);
        }
    );

    return labelOrder;
}

static double CalcCoxApproxSum(
    int start,