def alpha_039(code, end_date=None, fq="pre"):
    """
    公式:
        ((RANK(DECAYLINEAR(DELTA((CLOSE), 2),8)) - RANK(DECAYLINEAR(CORR(((VWAP * 0.3) + (OPEN * 0.7)), SUM(MEAN(VOLUME,180), 37), 14), 12))) * -1
    Inputs:
        code: 股票池
        end_date: 查询日期
    Outputs:
        因子的值
    """
    end_date = to_date_str(end_date)
    func_name = sys._getframe().f_code.co_name
    return JQDataClient.instance().get_alpha_191(**locals())
公式:
((RANK(DECAYLINEAR(DELTA((CLOSE), 2),8)) - RANK(DECAYLINEAR(CORR(((VWAP * 0.3) + (OPEN * 0.7)), SUM(MEAN(VOLUME,180), 37), 14), 12))) * -1
Inputs:
code: 股票池
end_date: 查询日期
Outputs:
因子的值
jqdatasdk/alpha191.py