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. This may take a day or two at busy times. There is no need to submit the post multiple times.
Data preparation, processing and pre-estimation analysis
-
- Topics
- Replies
- Views
- Last post
-
- 1 Replies
- 111 Views
-
Last post by stephanehess
-
- 3 Replies
- 767 Views
-
Last post by stephanehess
-
- 3 Replies
- 583 Views
-
Last post by stephanehess
-
- 5 Replies
- 3876 Views
-
Last post by stephanehess
-
- 6 Replies
- 4777 Views
-
Last post by bye1830
-
- 1 Replies
- 2407 Views
-
Last post by stephanehess
-
- 1 Replies
- 5001 Views
-
Last post by stephanehess
-
- 3 Replies
- 17648 Views
-
Last post by BTHopkins
-
- 1 Replies
- 7481 Views
-
Last post by stephanehess
-
- 1 Replies
- 5669 Views
-
Last post by stephanehess
-
- 1 Replies
- 6397 Views
-
Last post by stephanehess
-
- 5 Replies
- 8335 Views
-
Last post by stephanehess
-
- 6 Replies
- 10793 Views
-
Last post by JuliavB
-
- 2 Replies
- 7539 Views
-
Last post by Yashin
-
- 2 Replies
- 8432 Views
-
Last post by duxdfx
-
- 1 Replies
- 9506 Views
-
Last post by stephanehess
-
- 1 Replies
- 8779 Views
-
Last post by dpalma
-
- 3 Replies
- 10555 Views
-
Last post by stephanehess
-
- 9 Replies
- 18209 Views
-
Last post by stephanehess
-
- 3 Replies
- 13024 Views
-
Last post by dpalma
-
- 8 Replies
- 20863 Views
-
Last post by dpalma
-
- 2 Replies
- 10443 Views
-
Last post by LauraThoWal
-
- 1 Replies
- 9436 Views
-
Last post by stephanehess
-
- 2 Replies
- 11243 Views
-
Last post by DavidKL
-
- 1 Replies
- 9886 Views
-
Last post by dpalma