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st: about the listcoef command
From
Miranda <[email protected]>
To
[email protected]
Subject
st: about the listcoef command
Date
Fri, 11 Nov 2011 10:48:05 -0600
I was doing a multinomial logistic regression and after running the
mlogit command I used the listcoef to get the estimates for all
combinations of outcome categories. But I only get two groups
comparisons. Please see the results below.
. use http://www.stata-press.com/data/lf2/nomocc2, clear
(1982 General Social Survey)
. mlogit occ white ed exper, baseoutcome (5) nolog
Multinomial logistic regression Number of obs = 337
LR chi2(12) = 166.09
Prob > chi2 = 0.0000
Log likelihood = -426.80048 Pseudo R2 = 0.1629
------------------------------------------------------------------------------
occ | Coef. Std. Err. z P>|z| [95% Conf. Interval]
-------------+----------------------------------------------------------------
Menial |
white | -1.774306 .7550543 -2.35 0.019 -3.254186 -.2944273
ed | -.7788519 .1146293 -6.79 0.000 -1.003521 -.5541826
exper | -.0356509 .018037 -1.98 0.048 -.0710028 -.000299
_cons | 11.51833 1.849356 6.23 0.000 7.893659 15.143
-------------+----------------------------------------------------------------
BlueCol |
white | -.5378027 .7996033 -0.67 0.501 -2.104996 1.029391
ed | -.8782767 .1005446 -8.74 0.000 -1.07534 -.6812128
exper | -.0309296 .0144086 -2.15 0.032 -.05917 -.0026893
_cons | 12.25956 1.668144 7.35 0.000 8.990061 15.52907
-------------+----------------------------------------------------------------
Craft |
white | -1.301963 .647416 -2.01 0.044 -2.570875 -.0330509
ed | -.6850365 .0892996 -7.67 0.000 -.8600605 -.5100126
exper | -.0079671 .0127055 -0.63 0.531 -.0328693 .0169351
_cons | 10.42698 1.517943 6.87 0.000 7.451864 13.40209
-------------+----------------------------------------------------------------
WhiteCol |
white | -.2029212 .8693072 -0.23 0.815 -1.906732 1.50089
ed | -.4256943 .0922192 -4.62 0.000 -.6064407 -.2449479
exper | -.001055 .0143582 -0.07 0.941 -.0291967 .0270866
_cons | 5.279722 1.684006 3.14 0.002 1.979132 8.580313
-------------+----------------------------------------------------------------
Prof | (base outcome)
------------------------------------------------------------------------------
. listcoef white, help
mlogit (N=337): Factor Change in the Odds of occ
Variable: white (sd= .28)
Odds comparing |
Group 1 - Group 2 | b z P>|z| e^b e^bStdX
------------------+---------------------------------------------
Menial -Prof | -1.77431 -2.350 0.019 0.1696 0.6123
Prof -Menial | 1.77431 2.350 0.019 5.8962 1.6331
----------------------------------------------------------------
b = raw coefficient
z = z-score for test of b=0
P>|z| = p-value for z-test
e^b = exp(b) = factor change in odds for unit increase in X
e^bStdX = exp(b*SD of X) = change in odds for SD increase in X
.
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