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Thank you for your comments. I have tried to run the model using MCMC, but it shows EESs are all very small with respect to iteration number (5000) although I used orthogonal parameterization. The result is showed as below. And just wander if there is some method to improve the mixing. MLwiN (versio...

Thanks for your answer. The problem is solved. It may be caused by some duplicated level-2 items. Just wander if there is some function I could used in R to do the hierarchy viewer like in MLwiN. Thanks.

Diva

Dears, I have encountered a problem when running a 2-level ordinal model in R2wiN. Below is the expression I used in R: (mymodel <- runMLwiN(logit(Relief, cons) ~ 1 + (1 | District) , D = "Ordered Multinomial", estoptions = list(EstM = 1, nonlinear = c(1, 2), resi.store = TRUE), data = try...