各位大神好,我想知道如何使用stata将图1的数据如何转置成图2的数据,我刚搜索了一下帖子说是应该用dateex,但我看不太懂,求各位帮帮我图1
| id | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 
| 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 
| 2 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 
| 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 
图2
| id | year | ple | 
| 1 | 2011 | 0 | 
| 1 | 2012 | 0 | 
| 1 | 2013 | 0 | 
| 1 | 2014 | 0 | 
| 1 | 2015 | 0 | 
| 1 | 2016 | 0 | 
| 1 | 2017 | 0 | 
| 2 | 2011 | 0 | 
| 2 | 2012 | 0 | 
| 2 | 2013 | 0 | 
| 2 | 2014 | 0 | 
| 2 | 2015 | 0 | 
| 2 | 2016 | 1 | 
| 2 | 2017 | 1 | 
| 3 | 2011 | 0 | 
| 3 | 2012 | 0 | 
| 3 | 2013 | 0 | 
| 3 | 2014 | 0 | 
| 3 | 2015 | 0 | 
| 3 | 2016 | 0 | 
| 3 | 2017 | 0 |