model italy { for (i in 1:N) { lambda[i] ~ dgamma(alpha,beta) y[i] ~ dpois(lambda[i]) } alpha ~ dgamma(1,1) beta ~ dgamma(1,1) } list(y=c(7,9,8,7,7,6,6,5,5,7,9,10,8,8,8,7), N=16) list(alpha=10, beta=10)