Siren-Z33 发表于 2017-9-28 11:14
input long company_id double quarterly float(pe tobinq)
1 2016.12 6.91389 .052905
1 2016.09 ...
请先安装 "ssc install numdate", and "ssc install convdate"
- * Example generated by -dataex-. To install: ssc install dataex
- clear
- input long company_id double quarterly float(pe tobinq)
- 1 2016.12 6.91389 .052905
- 1 2016.09 7.122429 .055794
- 1 2016.06 6.831877 .053332
- 1 2016.03 6.963081 .056783
- 1 2015.12 7.846554 .068429
- 1 2015.09 7.580114 .057751
- 1 2015.06 10.506659 .080937
- 1 2015.03 9.08715 .078074
- 1 2014.12 9.139077 .082769
- 1 2014.09 7.606165 .054025
- 1 2014.06 7.433639 .052994
- end
- numdate monthly m1 = quarterly, pattern(YM)
- convdate quarter yq1 = m1
复制代码