[Limdep Nlogit List] random parameters logit

Marjolein Maria Juliette Harmsen-van Hout Marjolein.harmsen at rwth-aachen.de
Thu Aug 26 00:47:44 EST 2010


> Dear all,
> 
> I encountered the following puzzle with my dataset:
> 
>  NLOGIT;
>  Lhs=CHOICE,CSET,ALT;
>  Rhs=VAR1;
>  Pds=PER;
>  Rpl=VAR2;
>  Fcn=VAR1(N);
>  Halton;Pts=20$	
> 
> leads to Error 1027: Models - estimated variance matrix of estimates is singular, whereas:
> 
>  CREA;VAR1_VAR2=VAR1*VAR2$
>  NLOGIT;
>  Lhs=CHOICE,CSET,ALT;
>  Rhs=VAR1,VAR1_VAR2;
>  Pds=PER;
>  Rpl;
>  Fcn=VAR1(N);
>  Halton;Pts=20$        	
> 
> provides normal estimations. Does anybody have an idea how this could be possible?
> 
> Thanks in advance for your reaction!
> 
> Kind regards, 
> ____________________________________________________________
> 
> Dr. drs. Marjolein Harmsen - van Hout
> Post-doctoral researcher
> 
> Tel.: +49 241 80 49835
> Fax: +49 241 80 49829
> E-mail: mharmsen at eonerc.rwth-aachen.de
> Website: www.eonerc.rwth-aachen.de
> 
> Lehrstuhl für Wirtschaftswissenschaften, insb. Energieökonomik
> Institute for Future Energy Consumer Needs and Behavior (FCN)
> E.ON Energy Research Center (E.ON ERC)
> RWTH Aachen University
> Mathieustraße 6, D-52074 Aachen
> Germany
> ____________________________________________________________



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