1 | 2008 | 0.676 | 3868.54 | 0.818181818 | 469652 | 1439505.7 | 154496 |
2 | 2008 | 0.521 | 3505.67 | 0.894736842 | 612300 | 2018384.8 | 207775 |
3 | 2008 | 0.46 | 2906.86 | 0.73923445 | 448626 | 1361793.1 | 216918 |
4 | 2008 | 0.523 | 9328.15 | 0.684210526 | 901768 | 1747933.7 | 338244 |
5 | 2008 | 0.704 | 4391.21 | 0.968899522 | 772291 | 2070567 | 330122 |
6 | 2008 | 0.624 | 4310.12 | 0.90430622 | 633251 | 1254719.4 | 256051 |
在tobit运行完后,显示insufficient observations
r(2000);
请问,是什么问题?如何解决,跪谢!