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Re: st: missing t statistics
This looks like very strange data indeed - those standard errors are
minute. dividing the coefficient by its standard error is going to
result in a number of the sort studied by the late Professor Hubert
Mungus - a humungus quantity.
Have a look at your data - maybe the explanation lies there.
On 19 Oct 2007, at 02:20, Yun Liu wrote:
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
P Before printing, think about the environment
=================================
Ronan Conroy
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Royal College of Surgeons in Ireland
Epidemiology Department,
120 St Stephen's Green, Dublin 2, Ireland
+353 (0)1 402 2431
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http://www.flickr.com/photos/ronanconroy/sets/72157601895416740/
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