I have not fit this kind of model before, but you can try to replicate the solution in Stan http://discourse.mc-stan.org/t/thurstonian-model/1735/5
You might need the ordered transformed from here.
I have not fit this kind of model before, but you can try to replicate the solution in Stan http://discourse.mc-stan.org/t/thurstonian-model/1735/5
You might need the ordered transformed from here.