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by jackhan1208
13 Jun 2025, 23:58
Forum: Models and estimation
Topic: hybrid choice model with large positive opt-out ASC
Replies: 3
Views: 44345

Re: hybrid choice model with large positive opt-out ASC

Thank you Professor stephane !
I understand the issue now.

I have another question, which im concerning of, when using hybrid choice model, I looked up different literatures. majority of the study used scale items as indicator with ordinal logit model. However, in my case, my scale, called "trust ...
by jackhan1208
06 Jun 2025, 04:17
Forum: Models and estimation
Topic: hybrid choice model with large positive opt-out ASC
Replies: 3
Views: 44345

hybrid choice model with large positive opt-out ASC

Hi Professor Hess,
Thank you so much in advance :D
Q1: Large positive ASC, only appears when adding demographic, even when only one demographic variable added, so it should not be multicollinearity right ? then would it be model misspecification or scaling issues?
Q2: can you recommend me any ...
by jackhan1208
28 May 2025, 15:01
Forum: Model estimation
Topic: Latent Class model estimation ( Failed to converge properly)
Replies: 2
Views: 151857

Re: Latent Class model estimation ( Failed to converge properly)

Thank you Professor Hess for helping me diagnose the issue !
I will go ahead to modify this !
Jia
by jackhan1208
30 Apr 2025, 19:47
Forum: Model estimation
Topic: Latent Class model estimation ( Failed to converge properly)
Replies: 2
Views: 151857

Latent Class model estimation ( Failed to converge properly)

Dear Professor Hess and Apollo team, :)
I'm currently conducting a LC MMNL model for a unlabelled design dataset.
Here is the code for three classes estimation, there are five attributes associated with alternatives, where I defined price with negative values, and the rest positive, because those ...

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