Important: Read this before posting to this forum

  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:
    1. provide full details on the issue, including the entire code and output, including any error messages
    2. posts will not immediately appear on the forum, but will be checked by a moderator first. This may take a day or two at busy times. There is no need to submit the post multiple times.

Search found 5 matches

by ecd921
29 Nov 2021, 14:33
Forum: Bug reports
Topic: Different results between Windows and Linux server
Replies: 5
Views: 11723

Re: Different results between Windows and Linux server

Dear Stephane,

I have sent the data to your e-mail. Please let me know if by any chance you have not receive it.

Thanks.

Best regards,

Emilia
by ecd921
12 Nov 2021, 10:06
Forum: Bug reports
Topic: Different results between Windows and Linux server
Replies: 5
Views: 11723

Re: Different results between Windows and Linux server

Dear Stephane,

Please find attach a zip with both outputs.

Best regards
Emilia
by ecd921
09 Nov 2021, 15:56
Forum: Bug reports
Topic: Different results between Windows and Linux server
Replies: 5
Views: 11723

Different results between Windows and Linux server

Dear Stephane and David, I have been running some MXL estimations on a Linux server using Apollo 0.2.5 with good results. When I moved the same files to a Windows computer, also with apollo 0.2.5., the same estimations show me "some eigenvalues of Hessian are positive" and I get many "...
by ecd921
18 Nov 2020, 15:31
Forum: Model specification
Topic: Estimating a Generalized Mixed logit in Apollo
Replies: 3
Views: 5001

Re: Estimating a Generalized Mixed logit in Apollo

Thank you for the quick reply, now is clear.
by ecd921
17 Nov 2020, 12:47
Forum: Model specification
Topic: Estimating a Generalized Mixed logit in Apollo
Replies: 3
Views: 5001

Estimating a Generalized Mixed logit in Apollo

Hello,

I would like to know if there is a script or an example on how to estimate a generalized mixed logit model in Apollo? I checked the manual and the examples in the website but I did not found any information about it.

Thank you!