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
- 31 Mar 2022, 12:30
- Forum: Estimation results
- Topic: Error in Mixed Latent Class model
- Replies: 7
- Views: 4467
Re: Error in Mixed Latent Class model
Hi Stephane, Thanks again for your reply. Here is the Appolo combine of these three models ran with 200 MLHS, PMC draws also give very similar results. I've renamed the MMNL model to share the same names as the latent classes (_a) Model name MM_MNL_1_class MM_MNL_2_class MM_MNL_3_class Model descrip...
- 25 Mar 2022, 15:46
- Forum: Estimation results
- Topic: Error in Mixed Latent Class model
- Replies: 7
- Views: 4467
Re: Error in Mixed Latent Class model
Hi Stephane, Again thanks for the help. I've re ran the two class model and found the same issues exists, it appears more luck then anything that I thought this one worked ( I ran with 50 MLHS draws, if I increase the amount of draws we run into extreme numbers and NA). This is the two class model. ...
- 21 Mar 2022, 20:54
- Forum: Estimation results
- Topic: Error in Mixed Latent Class model
- Replies: 7
- Views: 4467
Re: Error in Mixed Latent Class model
Hi why are you multiplying by 0 in the below? That would mean the parameter is not used, and then the model would not be identified. But you get estimates, so the output doesn't seem to come from the code you copied below 0*sigma_log_b_cno_a * 0*draws_cno_a Stephane Apologies, I've copied the wrong...
- 21 Mar 2022, 09:43
- Forum: Estimation results
- Topic: Error in Mixed Latent Class model
- Replies: 7
- Views: 4467
Error in Mixed Latent Class model
Hi, Thanks for all the help you provide through this forum. I am having some problems running this model. When producing a two class model it appears to work fine, however when producing a three class or above the model produces NA for all SE, and the estimates look very suspicious. Subsequently, I ...