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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
  3. Before asking a question on the forum, users are kindly requested to follow these steps:
    1. Check that the same issue has not already been addressed in the forum - there is a search tool.
    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.
  4. If the above steps do not resolve the issue, then users should follow these steps when posting a question:
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Search found 4 matches

by katya2727
19 Aug 2025, 17:21
Forum: Model estimation
Topic: eMDC with only two goods
Replies: 1
Views: 43425

eMDC with only two goods

Hello Stephane & David,

Thank you so much for the great package and for your help on this forum.

My question concerns the simplest case of the eMDC model with only two goods. My main goal is to understand whether the two goods are complements or substitutes, first by examining the delta parameter ...
by katya2727
05 Aug 2024, 18:11
Forum: Post-estimation analysis/use of results
Topic: Mixed Logit - elasticities
Replies: 4
Views: 38893

Re: Mixed Logit - elasticities

Hello Prof. Hess,

Got it! Thank you so much for the response.

Best,
Katya
by katya2727
19 Jul 2024, 21:05
Forum: Post-estimation analysis/use of results
Topic: Mixed Logit - elasticities
Replies: 4
Views: 38893

Re: Mixed Logit - elasticities

Hello Prof. Hess,

Thank you for the reply! Is there any better way to find those elasticities for mixed logit?

Thanks again,
Katya
by katya2727
17 Jul 2024, 20:18
Forum: Post-estimation analysis/use of results
Topic: Mixed Logit - elasticities
Replies: 4
Views: 38893

Mixed Logit - elasticities

Hello Prof. Hess and Prof. Palma,

I have a question regarding elasticities for the mixed logit model. Is it possible to use the part of the code below from MNL_SP_covariates.r to find elasticities for the mixed logit model? The formulas of relative probabilities are quite different in MNL and ...