[Limdep Nlogit List] ;asc and Information Criteria
Hendrik Ernst
hendrik.ernst at fh-gelsenkirchen.de
Fri Jul 20 00:39:53 EST 2007
Dear list members,
I tried to estimate a Discrete Choice model with a Nlogit command as
follows:
NLOGIT
;Lhs=wahl,anzalt,alternat
;Choices=vas,self
;asc
;model:
U(vas)=price*Preis+time*zeit+quality*Qualitt+VAS*Revas/
U(self)=price*Preis+time*zeit+quality*Qualitt+VAS*Revas$
The following error message occurred: (supposedly because of the asc
command)
Error 1049: Model has no free parameters among slopes!
Error 1024: Failure estimating DISCRETE CHOICE model.
If this error is due to my "bad data" I would like to know how to
compute the No Coefficients Log-L Function for comparison with Constants
Only Log-L Function and Coefficiant Log-L Function.
Additionally, since NLOGIT's output contains AIC, BIC and HQIC I would
appreciate if anybody provides me with how NLOGIT computes these criteria.
Any help is appreciated.
Many thanks and best regards,
Hendrik.
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