Stata Logit
The logit command runs a logistic regression.
Contents
Usage
Copied from here:
. use https://stats.idre.ucla.edu/stat/stata/dae/binary, clear
. logit admit gre gpa i.rank
Iteration 0: log likelihood = -249.98826
Iteration 1: log likelihood = -229.66446
Iteration 2: log likelihood = -229.25955
Iteration 3: log likelihood = -229.25875
Iteration 4: log likelihood = -229.25875
Logistic regression Number of obs = 400
LR chi2(5) = 41.46
Prob > chi2 = 0.0000
Log likelihood = -229.25875 Pseudo R2 = 0.0829
------------------------------------------------------------------------------
admit | Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
gre | .0022644 .001094 2.07 0.038 .0001202 .0044086
gpa | .8040377 .3318193 2.42 0.015 .1536838 1.454392
|
rank |
2 | -.6754429 .3164897 -2.13 0.033 -1.295751 -.0551346
3 | -1.340204 .3453064 -3.88 0.000 -2.016992 -.6634158
4 | -1.551464 .4178316 -3.71 0.000 -2.370399 -.7325287
|
_cons | -3.989979 1.139951 -3.50 0.000 -6.224242 -1.755717
------------------------------------------------------------------------------Compare the output of logistic, which always shows the odds ratios, while the or option must be specified on logit to show those.
See here for details on factor variables.
Estimates
The estimates can be accessed through any of the following commands...
predict creates a variable storing the predicted probability for each case
margins displays the marginal predicted probabilities
See also
Stata manual for logit post-estimation