[Limdep Nlogit List] Problem with Error Components MNL model

[Stephen Beville]

Megan,

It also appears you have misspecified your error components "ECM" command.
Note, the ECM command should only contain names of alternatives for which
you would like to specify error components.  In your case at the moment:
0,1.  As David suggests change these to names.  The ECM command should
*not*include attributes of the alternatives.

Good luck,
Stephen


On Wed, Mar 31, 2010 at 5:44 PM, David Hensher <hgroup at optusnet.com.au>wrote:

> Megan
>
> try by giving alts names and not numbers such as ;choices= A,B
>
> David Hensher
>
>
> At 05:21 PM 31/03/2010, Megan Kessler wrote:
> >Hi,
> >
> >I'm currently trying to run an ECLOGIT analysis on some whale
> >watching data and have hit another problem (thanks again to those
> >who responded to my last query).
> >
> >The query I'm using is:
> >ECLOGIT
> >;Lhs= Choice
> >;Choices = 0,1
> >;Rhs=Vess,Dist,Imp,EnvEd,Cost
> >;Rh2=Locat,Prev,Rating,Age,Inc,Edu
> >;ECM=(Vess,Cost),(Dist,Cost),(Imp,Cost),(EnvEd,Cost)
> >;Halton
> >;Pts=50
> >;Effects: Cost
> >;Hfe=Locat,Prev,Rating,Age,Inc,Edu
> >;show model
> >;describe$
> >
> >The error messages I'm getting are:
> >--------------------------------------------+
> >   Error    71: Variable list contains a name not in the expected table.
> >   Error   539: Variable list: The unidentifiable string is VESS
> >   Error  1065: ECM=(...list...). Name in list is not an alt.
> >   Error  1065: ECM=(...list...). Name in list is not an alt.
> >
> >I get the same error message regardless of what factor combinations
> >I have in my ECM line.
> >
> >Any advice on what I'm doing wrong here would be appreciated.
> >
> >Thanks,
> >Megan
> >
> >Megan Kessler
> >PhD Candidate
> >Marine Mammal Research Group
> >MACQUARIE UNIVERSITY NSW 2109
> >
> >Phone: +61 (0)2 9850 7980
> >Fax: +61 (0)2 9850 7972
> >http://www.gse.mq.edu.au/research/mmrg/
> >
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-- 
Stephen Beville