Hi, Stata users,
I am running median regressions. Sometimes stata reports estimated
coefficients, standard errors and confidence intervals, but the t
statistics turn out to be missing. Could someone please tell me what
this means? Thank you! Below is an example:
qreg chgcomp swf swm swmcdftenure swfcdf* i.ind
Median regression Number of obs = 528
Raw sum of deviations 2.22e+07 (about 6806.4399)
Min sum of deviations 1.74e+07 Pseudo R2 = 0.2164
------------------------------------------------------------------------------
chgcomp | Coef. Std. Err. t P>|t| [95% Conf. Interval]
-------------+----------------------------------------------------------------
swf | 44.91122 .0000596 . 0.000 44.91111 44.91134
swm | -1.589599 4.38e-06 . 0.000 -1.589608 -1.589591
swmcdftenure | 4.038524 8.44e-06 . 0.000 4.038507 4.038541
swfcdfCEOage | .5402258 5.23e-06 . 0.000 .5402155 .5402361
swfcdfbmv | -64.76817 .0000999 . 0.000 -64.76837 -64.76797
swfcdfrisk | 20.81125 .0000704 . 0.000 20.81112 20.81139
_Iind_20 | -462.8457 .1503787 -3077.87 0.000 -463.1412 -462.5502
_Iind_22 | -414.9953 .1383042 -3000.60 0.000 -415.267 -414.7235
Yun
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