Probabilistic graphical model for the RV analysis. An arrow between two nodes indicates the direction of conditional dependence. The circled nodes are parameters of the model, whose joint distribution is sampled. The filled node represents the observed RVs. The t_i and σ_i nodes are assumed given and thus fixed, while the v_i are deterministic functions of other nodes. The variables inside the boxes are repeated a given number of times. The dashed line connecting f_R indicates the importance sampling scheme used to estimate the posterior for this parameter.