def alpha_097(enddate, index='all'):
    """
    未实现
    公式: 
        ((rank(decay_linear(delta(IndNeutralize(((low\* 0.721001) + (vwap\* (1 - 0.721001))), IndClass.industry), 3.3705), 20.4523)) - Ts_Rank(decay_linear(Ts_Rank(correlation(Ts_Rank(low, 7.87871), Ts_Rank(adv60, 17.255), 4.97547), 18.5925), 15.7152), 6.71659))\* -1)
    """
    raise Exception("该因子未实现")
未实现
公式:
((rank(decay_linear(delta(IndNeutralize(((low\* 0.721001) + (vwap\* (1 - 0.721001))), IndClass.industry), 3.3705), 20.4523)) - Ts_Rank(decay_linear(Ts_Rank(correlation(Ts_Rank(low, 7.87871), Ts_Rank(adv60, 17.255), 4.97547), 18.5925), 15.7152), 6.71659))\* -1)
jqdatasdk/alpha101.py