| country | 2001 | 2002 | 2003 |
| C1 | 23,100.42 | 23,466.71 | 27,402.39 |
| C2 | 21736.18 | 23466.66 | 28592.42 |
| C3 | 32,711.10 | 31,241.17 | 33,717.88 |
请问STATA 命令怎么快速转化为如下面板数据?
| country | Year | VAR |
| C1 | 2001 | 23,100.42 |
| C1 | 2001 | 23,466.71 |
| C1 | 2001 | 27,402.39 |
| C2 | 2002 | 21736.18 |
| C2 | 2002 | 23466.66 |
| C2 | 2002 | 28592.42 |
| C3 | 2003 | 32,711.10 |
| C3 | 2003 | 31,241.17 |
| C4 | 2003 | 33,717.88 |
非常感谢 ;-)


雷达卡







京公网安备 11010802022788号







