Hello

I performed a discrete choice experiment which included 8 mixtures terms (the proportions of children send to a certain educational level) and an amount variable (the total number of children for a specific choice set). My respondents were randomly assigned to 1 of the 5 blocks of which each block consisted of 12 choice cards.

Now, I want to analyze my data using a latent class model. Is it possible to tell Stata that some of my variables are mixtures which sum up to 1? And yes, how can you do this?

Thank you very much in advance

Kind regards

Eva