tushare69ds.py 文件源码

def GET_LOW_DAY(self, context, security, ref=0):
        dataCount =  ref + 1
        df_data = ts.get_k_data(security, index=False, ktype='D').tail(dataCount)
        if df_data.empty == True:
            print "security:%s in context:%s NO GET_LOW_DAY!" %(str(security),str(context))
            return np.nan
        if len(df_data['low']) < ref:
            return np.nan
        return df_data['low'].values[-ref]