Problem in multilevel (hierarchical) multinomial logistic regression

The data The predicted variable is a categorical response , named resp with levels ‘1’, ‘2’, ‘3’, and ‘4’ (nominal labels, not numerical values). The predictor is a categorical/nominal variable named group , with levels ‘A’ through ‘K’. Notice these aspects of the data: The proportion of response ‘2’ equals response ‘3’ within each group, and across all groups. Specifically, in every group, p(‘2’)…