Important: Read this before posting to this forum
- 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.
- 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
- Before asking a question on the forum, users are kindly requested to follow these steps:
- Check that the same issue has not already been addressed in the forum - there is a search tool.
- 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
- Check the frequently asked questions section on the Apollo website, which discusses some common issues/failures. Please see http://www.apollochoicemodelling.com/faq.html
- Make sure that R is using the latest official release of Apollo.
- Users can check which version they are running by entering packageVersion("apollo").
- Then check what is the latest full release (not development version) at http://www.ApolloChoiceModelling.com/code.html.
- To update to the latest official version, just enter install.packages("apollo"). To update to a development version, download the appropriate binary file from http://www.ApolloChoiceModelling.com/code.html, and install the package from file
- If the above steps do not resolve the issue, then users should follow these steps when posting a question:
- provide full details on the issue, including the entire code and output, including any error messages
- posts will not immediately appear on the forum, but will be checked by a moderator first. We check the forum at least twice a week. It may thus take a couple of days for your post to appear and before we reply. There is no need to submit the post multiple times.
Models and estimation
-
- Topics
- Replies
- Views
- Last post
-
- 3 Replies
- 1918 Views
-
Last post by stephanehess
-
- 1 Replies
- 548 Views
-
Last post by stephanehess
-
- 1 Replies
- 3521 Views
-
Last post by dpalma
-
- 9 Replies
- 56455 Views
-
Last post by dpalma
-
- 5 Replies
- 22085 Views
-
Last post by stephanehess
-
- 1 Replies
- 6415 Views
-
Last post by dpalma
-
- 1 Replies
- 6460 Views
-
Last post by stephanehess
-
- 1 Replies
- 7713 Views
-
Last post by stephanehess
-
- 3 Replies
- 12496 Views
-
Last post by stephanehess
-
- 1 Replies
- 11009 Views
-
Last post by stephanehess
-
- 2 Replies
- 45649 Views
-
Last post by dsbunch@ucdavis.edu
-
- 1 Replies
- 12898 Views
-
Last post by stephanehess
-
- 1 Replies
- 14366 Views
-
Last post by stephanehess
-
- 1 Replies
- 12589 Views
-
Last post by dpalma
-
- 1 Replies
- 13750 Views
-
Last post by stephanehess
-
- 7 Replies
- 37493 Views
-
Last post by stephanehess
-
- 4 Replies
- 21759 Views
-
Last post by stephanehess
-
- 2 Replies
- 27716 Views
-
Last post by maa033
-
- 6 Replies
- 24905 Views
-
Last post by stephanehess
-
- 8 Replies
- 31854 Views
-
Last post by stephanehess
-
- 1 Replies
- 14353 Views
-
Last post by stephanehess
-
- 1 Replies
- 14584 Views
-
Last post by stephanehess
-
- 1 Replies
- 13132 Views
-
Last post by stephanehess
-
- 2 Replies
- 15645 Views
-
Last post by punyabeet
-
- 2 Replies
- 15154 Views
-
Last post by Ariana_1987