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.
Search found 4 matches
- 22 Feb 2023, 02:27
- Forum: Bug reports
- Topic: Apollo modeloutput cannot present the result
- Replies: 3
- Views: 6336
Re: Apollo modeloutput cannot present the result
Hi, Thank you for your reply. I am surprised that we don't have s.e. or rob. s.e in the rds file. Previously, I only saved the output of `apollo_estimate` as an RDATA file and used it to gather results. The RDS file shows in the following figure: https://i.328888.xyz/2023/02/22/ghZSH.png I have sent...
- 21 Dec 2022, 04:03
- Forum: Post-estimation analysis/use of results
- Topic: Error in Apollo ModelOutput
- Replies: 1
- Views: 3391
Error in Apollo ModelOutput
Hello, I am having an issue with displaying the output of the mixed logit model after running the model in a remote server, since my personal PC does not have enough memory for the data. When I run the model, the output is not displayed as I expect it to be. Instead, I am seeing an error message whi...
- 06 Dec 2022, 08:58
- Forum: Bug reports
- Topic: Apollo modeloutput cannot present the result
- Replies: 3
- Views: 6336
Apollo modeloutput cannot present the result
Hi, I would like to run a mixed logit model in a remote server, since the dataset is quite large. When I run this model with small test sample in my own PC (like 1% of the total sample), it works well. However, after updating to the latest version, if I run the mixed logit model in a remote server a...
- 26 Jul 2021, 07:31
- Forum: Data preparation, processing and pre-estimation analysis
- Topic: ChoiceVar
- Replies: 3
- Views: 7241
Re: ChoiceVar
The same error also occurs to me. The code and the model are as follows. ### Clear memory rm(list = ls()) ### Load libraries library(apollo) #> Apollo 0.2.4 #> www.ApolloChoiceModelling.com #> See url for a detailed manual, examples and a help forum. #> Sign up to our mailing list for updates on new...