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  1. 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.
  2. 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
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    1. Check that the same issue has not already been addressed in the forum - there is a search tool.
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    3. Check the frequently asked questions section on the Apollo website, which discusses some common issues/failures. Please see http://www.apollochoicemodelling.com/faq.html
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Search found 3 matches

by JamesNind
19 Sep 2023, 21:30
Forum: Errors during model validation and/or estimation.
Topic: INPUT ISSUE - values for "choiceVar" not included in "alternative
Replies: 5
Views: 17261

Re: INPUT ISSUE - values for "choiceVar" not included in "alternative

Thank you Stephane

Testing likelihood function...
Error in apollo_mnl(c(mnl_settings, componentName2 = "model"), functionality) :
CALCULATION ISSUE - Some utilities for model component "model" contain values that are not finite numbers!
by JamesNind
18 Sep 2023, 22:30
Forum: Errors during model validation and/or estimation.
Topic: INPUT ISSUE - values for "choiceVar" not included in "alternative
Replies: 5
Views: 17261

Re: INPUT ISSUE - values for "choiceVar" not included in "alternative

Thank you Stephane, that has removed that error message.

I now have an error stating I have values that are not finite numbers, I read one of your previous replies which recommended checking for missing data however I have no blank or NA cells. Do you have any suggestions for this problem?

Cheers ...
by JamesNind
17 Sep 2023, 04:13
Forum: Errors during model validation and/or estimation.
Topic: INPUT ISSUE - values for "choiceVar" not included in "alternative
Replies: 5
Views: 17261

INPUT ISSUE - values for "choiceVar" not included in "alternative

Kia ora,

I am developing a choice model where participants are asked to choose between 3 unlabeled pharmacies. I have collected some pilot data and processed it using the apollo_LongtoWide function. but have been unable to analyse it so far. I have been stopped by the error message: INPUT ISSUE ...