SSSleepy

Thanks a lot for your timely response! As you mentioned, > Perhaps you could try models with covariates on some but not all transitions, and/or equality constraints on the parameters,...

Thanks you very much, and it works! However, I'm still confused regarding your latter recommendation i.e. try models with equality constraints on the parameters. I have read Section 2.7, model...

I will go through the model and the materials you provided carefully. Very very grateful to your valuable recommendations and kind guidance!