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st: margins & mfx after asclogit


From   "Subramanian, Hemang" <Hemang.Subramanian@scheller.gatech.edu>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   st: margins & mfx after asclogit
Date   Tue, 26 Feb 2013 03:31:12 +0000

Dear stata-listers,

 Am trying to get the marginal effects of a particular variable "ratio_simulcast" after running  the asclogit command. This is keeping the rest of the varaibles at their means. The margins command doesn't work after asclogit and I tried using estat mfx, as stated in a prior post on the topic on statalist. This however fails to return a result after 6 hours of execution.

 I have a very large dataset with 1.25 M total observations and about 105000 unique cases.

    The asclogit command: asclogit achoice ratio_simulcast buyer_distance supply  meanPriceValueRatio pctsold price_variability interactac , case(caseid) alt(ac)

 Is there any other way to get a marginal effect of particular variable as stated in the model? Is there code that I could use that enables me to get the predicted probabilities of the independent variables in the model. 

Thanks so much in advance.
Hemang C Subramanian

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