This paper describes the core features of the R package mmeta, whichimplements the exact posterior inference of odds ratio, relative risk, and risk difference given either a single 2 × 2 table or multiple 2 × 2 tables when the risks within the same study are independent or correlated.
Keywords: Appell function; Bayesian inference; Sarmanov family; bivariate beta-binomial; exact distribution; hypergeometric function.