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  1. This forum is for questions related to the use of Apollo. We will answer some general choice modelling questions too, where appropriate, and time permitting. We cannot answer questions about how to estimate choice models with other software packages.
  2. There is a very detailed manual for Apollo available at http://www.ApolloChoiceModelling.com/manual.html. This contains detailed descriptions of the various Apollo functions, and numerous examples are available at http://www.ApolloChoiceModelling.com/examples.html. In addition, help files are available for all functions, using e.g. ?apollo_mnl
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    2. Ensure that the correct syntax has been used. For any function, detailed instructions are available directly in Apollo, e.g. by using ?apollo_mnl for apollo_mnl
    3. Check the frequently asked questions section on the Apollo website, which discusses some common issues/failures. Please see http://www.apollochoicemodelling.com/faq.html
    4. Make sure that R is using the latest official release of Apollo.
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GMNL model

Put in requests for new capabilities such as functions for new models.
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klim
Posts: 4
Joined: 27 May 2021, 15:25

GMNL model

Post by klim »

Hello all, I'm new to this. Is there a working example of GMNL with Apollo? Would Apollo outperform the r_gmnl package in terms of estimation speed?

Thanks.
stephanehess
Site Admin
Posts: 974
Joined: 24 Apr 2020, 16:29

Re: GMNL model

Post by stephanehess »

Hi

no, there is no implementation of GMNL, nor will there be given our well established views on GMNL, which is not a generalised model but a restricted version of MMNL. Please see http://www.apollochoicemodelling.com/faq.html

We have not conducted speed comparisons against r_gmnl. Apollo is a very general package, and is thus not necessarily as heavily optimised for specific model specifications.

Best wishes

Stephane
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Stephane Hess
www.stephanehess.me.uk
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