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
-
- 3 Replies
- 110 Views
-
Last post by stephanehess
-
- 1 Replies
- 430 Views
-
Last post by stephanehess
-
- 1 Replies
- 3023 Views
-
Last post by stephanehess
-
- 2 Replies
- 5554 Views
-
Last post by frieda.ritter
-
- 3 Replies
- 15302 Views
-
Last post by BTHopkins
-
- 1 Replies
- 3950 Views
-
Last post by stephanehess
-
- 1 Replies
- 4445 Views
-
Last post by stephanehess
-
- 5 Replies
- 5916 Views
-
Last post by stephanehess
-
- 6 Replies
- 7938 Views
-
Last post by JuliavB
-
- 2 Replies
- 5288 Views
-
Last post by Yashin
-
- 2 Replies
- 6479 Views
-
Last post by duxdfx
-
- 1 Replies
- 7882 Views
-
Last post by stephanehess
-
- 1 Replies
- 7104 Views
-
Last post by dpalma
-
- 3 Replies
- 8327 Views
-
Last post by stephanehess
-
- 9 Replies
- 14083 Views
-
Last post by stephanehess
-
- 3 Replies
- 10615 Views
-
Last post by dpalma
-
- 8 Replies
- 17858 Views
-
Last post by dpalma
-
- 2 Replies
- 8551 Views
-
Last post by LauraThoWal
-
- 1 Replies
- 7609 Views
-
Last post by stephanehess
-
- 2 Replies
- 9294 Views
-
Last post by DavidKL
-
- 1 Replies
- 8049 Views
-
Last post by dpalma
-
- 2 Replies
- 8841 Views
-
Last post by Istillhavequestions
-
- 7 Replies
- 14476 Views
-
Last post by svenne
-
- 1 Replies
- 7739 Views
-
Last post by stephanehess