[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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