ApolloChoiceModelling forum

I am running a large number of random-parameters latent-class models with similar structure but different datasets and different variable names. Apollo is extremely flexible but also is quite complicated to set up. I have working code for the first dataset, but I dread spending the better part of an ...

Has anyone tried to code the model Kiki asked about?

I am getting the same error with a data-fusion model. The code works for MNL estimation, but I get the "logical subscript too long" error even with 1 core. Was there any success in diagnosing this problem last year?

Here is the code:

##### Program based on Example 22 Joint Estimation and Example ...

I did see that example. I should have used the term "sequential logit", since the survey did not elicit a ranking as in the Case-3 BWS, but elicited a choice over 3 alternatives, followed by a second question to obtain a choice between the remaining two alternatives. So the data is set up as two ...

Reasonable answer. I looked, but obviously not hard enough. I suspect you have a button you push to generate that text with a blank space for "exploded logit" or corresponding term. I don't know how you find time to respond to all these postings, but it is a huge service to the research community.

Thanks. The RP/SP example showed how to multiply the likelihood functions from the separate datasets. I got it to work for a data-fusion model combining 5 DCE datasets. However, one of the studies used a two-question format to get a full ranking of 3 alternatives. I set up the data as exploded logit ...

I am combining several DCE datasets, one of which ranks alternatives. Is it possible to combine MNL and EL specifications in a single model?

This is great software support. I'm looking forward to using Apollo for advanced choice modeling.

I just started using Apollo. I wouldn't know how to modify the code. I downloaded the example files from http://www.apollochoicemodelling.com/files/examples_v0.2.4.zip, opened Apollo_example_2.r in RStudio, and ran it. Example 1 ran without a hitch. Example 2 lines 113 to 118 include a bootstrap ...

I am running a new installation of 2.5. Example 1 ran OK, but Example 2 crashed. Output shown below.


Preparing bootstrap.
Parameters and LL in each repetition will be written to: Apollo_example_2_bootstrap_params.csv
Vectors showing sampling rate for each observation in each repetition written to ...