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st: missing T-statistics


From   "Li Chuntao" <chtl@econ.hku.hk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: missing T-statistics
Date   Thu, 8 Sep 2005 21:33:53 +0800

Dear Stata Listers,

     I have, may be too stupid a question, could you please help me out?

    i have estimate some probit regressions but find that stata only reports
the coefficient for the constant term, and leaves the T-statistics,
p-values, etc, missing.

following is from one of my regression results, can you please tell me why?

thanks


. logit audit_opinion z_score abs_tac_ass aud_fee1 aud_size_fee ln_asset
joint_aud audit_change NEG ind2-i
> nd23 y2-y3

note: ind22 != 0 predicts failure perfectly
      ind22 dropped and 16 obs not used

note: ind14 dropped due to collinearity
Iteration 0:   log likelihood = -419.01836
Iteration 1:   log likelihood = -335.23661
Iteration 2:   log likelihood = -327.86142
Iteration 3:   log likelihood = -327.56424
Iteration 4:   log likelihood = -327.55008
Iteration 5:   log likelihood =  -327.5452
Iteration 6:   log likelihood = -327.54341
Iteration 7:   log likelihood = -327.54275
Iteration 8:   log likelihood = -327.54251
Iteration 9:   log likelihood = -327.54242
Iteration 10:  log likelihood = -327.54239
Iteration 11:  log likelihood = -327.54237
Iteration 12:  log likelihood = -327.54237
Iteration 13:  log likelihood = -327.54237
Iteration 14:  log likelihood = -327.54237
Iteration 15:  log likelihood = -327.54237
Iteration 16:  log likelihood = -327.54237

Logit estimates                                   Number of obs   =
795
                                                  LR chi2(30)     =
182.95
                                                  Prob > chi2     =
0.0000
Log likelihood = -327.54237                       Pseudo R2       =
0.2183

----------------------------------------------------------------------------
--
audit_opin~n |      Coef.   Std. Err.      z    P>|z|     [95% Conf.
Interval]
-------------+--------------------------------------------------------------
--
     z_score |   -.014017   .0179234    -0.78   0.434    -.0491461
.0211122
 abs_tac_ass |   2.732821   .8638901     3.16   0.002     1.039628
4.426015
    aud_fee1 |   5.906439     2.6865     2.20   0.028     .6409955
11.17188
aud_size_fee |   .9016732   .2331172     3.87   0.000     .4447718
1.358575
    ln_asset |  -.2697205     .14722    -1.83   0.067    -.5582663
.0188254
   joint_aud |  -2.073559   .6909366    -3.00
0.003     -3.42777   -.7193485
audit_change |   .6606567   .2723444     2.43   0.015     .1268716
1.194442
         NEG |   1.914281   .2233309     8.57   0.000      1.47656
2.352001
        ind2 |   16.57877   4.057112     4.09   0.000     8.626973
24.53056
        ind3 |   15.69185   4.198936     3.74   0.000     7.462088
23.92161
        ind4 |   16.62267   4.114354     4.04   0.000     8.558685
24.68666
        ind5 |   16.19834   4.149752     3.90   0.000     8.064976
24.33171
        ind6 |   17.08733   4.207382     4.06   0.000     8.841011
25.33364
        ind7 |   16.81346   4.164872     4.04   0.000      8.65046
24.97646
        ind8 |   16.70633   4.089821     4.08   0.000     8.690428
24.72223
        ind9 |   16.58702   4.048147     4.10   0.000       8.6528
24.52125
       ind10 |   16.31946   4.151709     3.93   0.000     8.182261
24.45666
       ind11 |   16.63699       4.09     4.07   0.000      8.62074
24.65325
       ind12 |   16.00491   4.189965     3.82   0.000      7.79273
24.21709
       ind13 |    15.3805    4.15723     3.70   0.000     7.232483
23.52852
       ind15 |   16.29299    4.11868     3.96   0.000     8.220526
24.36546
       ind16 |   17.25139   4.108487     4.20   0.000     9.198899
25.30387
       ind17 |   15.89043   4.108669     3.87   0.000     7.837591
23.94328
       ind18 |   15.23574   4.144422     3.68   0.000     7.112824
23.35866
       ind19 |   17.05134   4.119404     4.14   0.000     8.977456
25.12522
       ind20 |   15.93022   4.143767     3.84   0.000     7.808582
24.05185
       ind21 |   16.43216   4.085803     4.02   0.000     8.424129
24.44018
       ind23 |   16.55192   4.071311     4.07   0.000     8.572298
24.53155
          y2 |  -.1851133   .2368476    -0.78   0.434    -.6493261
.2790996
          y3 |  -.7484152   .2627184    -2.85
0.004    -1.263334   -.2334967
       _cons |  -28.02461          .        .       .            .
.
----------------------------------------------------------------------------
--



Chuntao LI
Ph. D. Student
School of Economics and Finance
The University of Hong Kong
Tel: (852) 2857 8637
Email:chtl@econ.hku.hk

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