Survey: Tobit regression
Number of strata = 2 Number of obs = 400
Number of PSUs = 4 Population size = 2000
Design df = 2
F( 0, 2) = .
Prob > F = .
------------------------------------------------------------------------------
| Linearized
t | Coef. Std. Err. t P>|t| [95% Conf. Interval]
-------------+----------------------------------------------------------------
x | -1.31e-10 1.03e-11 -12.80 0.006 -1.75e-10 -8.72e-11
_cons | 6.04e-09 4.80e-10 12.57 0.006 3.97e-09 8.10e-09
-------------+----------------------------------------------------------------
/sigma | 4.96e-09 2.69e-11 184.36 0.000 4.84e-09 5.07e-09
------------------------------------------------------------------------------
Obs. summary: 0 left-censored observations
399 uncensored observations
1 right-censored observation at t>=1.000e-07
这是我运用数据进行tobit回归分析的结果,我想问问:为什么没有得出F值和P值?


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