Predicted probabilities (P(outome) cannot be estimated from -clogit-  
(or -xtlogit- the same thing), because no intercept is estimated.   
(The models assume there is a different intercept for each matched  
set or panel.)
-Steve
On Feb 6, 2009, at 2:40 PM, Supnithadnaporn, Anupit wrote:
Dear all,
I analyze the data using both -clogit- and -xtlogit fe- commands. I  
would like to get the marginal effect of each independent variables  
in the model. However, -mfx- command does not work after both - 
clogit- and -xtlogit fe-, giving the error
predict() expression  unsuitable for marginal effect calculation
r(119);
Would anyone please suggest me how to get the marginal effect after  
running -clogit- and -xtlogit fe-?
Thank you,
Anupit
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