使用xthreg命令后,得到的结果如下
Threshold | RSS MSE Fstat Prob Crit10 Crit5 Crit1
-----------+-------------------------------------------------------------------
Single | 11.8035 0.0347 70.07 0.0000 21.0704 27.6308 46.8106
Double | 11.3517 0.0334 13.53 0.1967 18.2740 21.9343 32.2631
Triple | 11.0141 0.0324 10.42 0.5167 27.1770 33.0066 42.6276
是不是就说明存在单门限呢?
Fixed-effects (within) regression Number of obs = 350
Group variable: id Number of groups = 35
R-sq: within = 0.2448 Obs per group: min = 10
between = 0.0008 avg = 10.0
overall = 0.1904 max = 10
F(7,308) = 14.26
corr(u_i, Xb) = -0.3665 Prob > F = 0.0000
------------------------------------------------------------------------------
| Coef. Std. Err. t P>|t| [95% Conf. Interval]
-------------+----------------------------------------------------------------
| .4156909 .2572606 1.62 0.107 -.0905198 .9219015
| .016295 .3027769 0.05 0.957 -.5794779 .6120678
| -.042996 .0125939 -3.41 0.001 -.0677769 -.0182151
|
_cat#c. |
0 | .260837 .0374856 6.96 0.000 .1870768 .3345972
1 | .1982357 .0323555 6.13 0.000 .1345699 .2619016
2 | .2208915 .0326095 6.77 0.000 .1567259 .2850572
3 | .160532 .0289724 5.54 0.000 .1035232 .2175407
|
_cons | -1.382506 .2489392 -5.55 0.000 -1.872343 -.8926693
-------------+----------------------------------------------------------------
sigma_u | .06425487
sigma_e | .1924136
rho | .10032856 (fraction of variance due to u_i)
------------------------------------------------------------------------------
F test that all u_i=0: F(34, 308) = 0.81 Prob > F = 0.7640
这个表可以看出门限值分段后的系数吗?


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