speaker-confusion-model/code/models/blocks/confusion_model_parameters_binomial_hurdle.stan

matrix<lower=2>[n_classes,n_classes] etas;
real<lower=2> eta_voc;
matrix<lower=0,upper=1>[n_classes,n_classes] mus;
array [n_groups] matrix<lower=0,upper=1>[n_classes,n_classes] lambda;
matrix<lower=0,upper=1>[n_classes,n_classes] p;