The Price-Bonett approximate Bayes confidence interval for the ratio of probabilities

Described in Chapter 4 "The 2x2 Table"

PriceBonett_approximate_Bayes_CI_2x2(n, a = 1.25, b = 2.5, alpha = 0.05)

Arguments

n: the observed counts (a 2x2 matrix)
a, b: parameters of the beta distribution
alpha: the nominal level, e.g. 0.05 for 95# CIs

Value

An object of the contingencytables_result class, basically a subclass of base::list(). Use the utils::str() function to see the specific elements returned.

Examples

# An RCT of high vs standard dose of epinephrine (Perondi et al., 2004)
PriceBonett_approximate_Bayes_CI_2x2(perondi_2004)
#> The Price-Bonett approximate Bayes CI: estimate = 7.0000 (95% CI 0.9205 to 36.5449)

# The association between CHRNA4 genotype and XFS (Ritland et al., 2007)
PriceBonett_approximate_Bayes_CI_2x2(ritland_2007)
#> The Price-Bonett approximate Bayes CI: estimate = 0.0000 (95% CI 0.0014 to 3.4254)