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
- 30 Views
-
Last post by stephanehess
-
- 1 Replies
- 1116 Views
-
Last post by stephanehess
-
- 2 Replies
- 3839 Views
-
Last post by frieda.ritter
-
- 3 Replies
- 13782 Views
-
Last post by BTHopkins
-
- 1 Replies
- 3027 Views
-
Last post by stephanehess
-
- 1 Replies
- 3403 Views
-
Last post by stephanehess
-
- 5 Replies
- 4818 Views
-
Last post by stephanehess
-
- 6 Replies
- 6785 Views
-
Last post by JuliavB
-
- 2 Replies
- 4302 Views
-
Last post by Yashin
-
- 2 Replies
- 5571 Views
-
Last post by duxdfx
-
- 1 Replies
- 6898 Views
-
Last post by stephanehess
-
- 1 Replies
- 6083 Views
-
Last post by dpalma
-
- 3 Replies
- 7380 Views
-
Last post by stephanehess
-
- 9 Replies
- 13016 Views
-
Last post by stephanehess
-
- 3 Replies
- 9595 Views
-
Last post by dpalma
-
- 8 Replies
- 16731 Views
-
Last post by dpalma
-
- 2 Replies
- 7596 Views
-
Last post by LauraThoWal
-
- 1 Replies
- 6681 Views
-
Last post by stephanehess
-
- 2 Replies
- 8347 Views
-
Last post by DavidKL
-
- 1 Replies
- 7132 Views
-
Last post by dpalma
-
- 2 Replies
- 7831 Views
-
Last post by Istillhavequestions
-
- 7 Replies
- 13418 Views
-
Last post by svenne
-
- 1 Replies
- 6827 Views
-
Last post by stephanehess