def QA_indicator_BBI(DataFrame, N1=3, N2=6, N3=12, N4=24):
    '多空指标'
    C = DataFrame['close']
    bbi = (MA(C, N1) + MA(C, N2) + MA(C, N3) + MA(C, N4)) / 4
    DICT = {'BBI': bbi}

    return pd.DataFrame(DICT)