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Sensitivity Analysis. Quantile–Quantile plot of posterior classification probabilities (left PG: tri-level Poisson-Gamma model; right BYM: tri-level BYM model) against posterior classification probabilities obtained specifying a Beta(1,1) (upper) or a Beta(9,1) (lower) hyperprior. Lung cancer mortality, males. Tuscany, 1995–1999.
