2016.09.06回顾

1、昨天主要就是改好了接口,测试,上线

2、看了下优矿,随便捣鼓了一下,尝试了一个简单的策略,回测了9年数据,收益率还是可以接受


___ ____ ____ ____ ____ © /__ / ____/ / ____/ 17.0 ___/ / /___/ / /___/ MP—Parallel Edition Statistics and Data Science Copyright 1985-2021 StataCorp LLC StataCorp 4905 Lakeway Drive College Station, Texas 77845 USA 800-STATA-PC https://www.stata.com 979-696-4600 stata@stata.com Stata license: Single-user 2-core perpetual Serial number: 501806366048 Licensed to: aaa bbb Notes: 1. Unicode is supported; see help unicode_advice. 2. More than 2 billion observations are allowed; see help obs_advice. 3. Maximum number of variables is set to 5,000; see help set_maxvar. . use "D:\Users\lenovo\Desktop\原始数据.dta" . . * 转换日期 . . gen date = date(date_str, "YMD") . . format date %td . . drop date_str . . . . * 删除关键变量缺失 . . drop if missing(roa, roe, revenue, net_profit) (18 observations deleted) . . . . * 按 date 分组,保留 revenue 最大的第一条 . . gsort date -revenue . . by date: keep if _n == 1 (30 observations deleted) . . . . * 生成年份 . . gen year = year(date) . . . . * 控制变量 . . gen profit_margin = net_profit / revenue . . replace profit_margin = . if missing(net_profit, revenue) (0 real changes made) . . . . gen ln_revenue = ln(revenue) . . . . gen interest_to_rev = interest_expense / revenue (35 missing values generated) . . replace interest_to_rev = 0 if missing(interest_to_rev) (35 real changes made) . . . . * 保存 . . save financial_cleaned.dta, replace file financial_cleaned.dta saved . . . . * 输出查看 . . list year date roa roe revenue net_profit profit_margin in 1/10 +----------------------------------------------------------------------+ | year date roa roe revenue net_pr~t profit~n | |----------------------------------------------------------------------| 1. | 2016 31mar2016 .055976 .061811 2.7e+09 6.8e+08 .256 | 2. | 2016 30jun2016 .10371 .11484 5.3e+09 1.3e+09 .2501408 | 3. | 2016 30sep2016 .142684 .15968 8.3e+09 1.9e+09 .2353658 | 4. | 2016 31dec2016 .183823 .204607 1.1e+10 2.6e+09 .2374491 | 5. | 2017 31mar2017 .052784 .059023 3.2e+09 8.1e+08 .2548525 | |----------------------------------------------------------------------| 6. | 2017 30jun2017 .101285 .112396 6.3e+09 1.6e+09 .2511863 | 7. | 2017 30sep2017 .144191 .159117 1.0e+10 2.4e+09 .2368621 | 8. | 2017 31dec2017 .182542 .206543 1.4e+10 3.3e+09 .2380053 | 9. | 2018 31mar2018 .051485 .057262 3.9e+09 9.7e+08 .2523058 | 10. | 2018 30jun2018 .096902 .109961 7.8e+09 1.9e+09 .2505298 | +----------------------------------------------------------------------+ .
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