Computes the Bayes factor BF\(_{01}\) comparing the point-null \(H_0: p_1 = p_2\) to the alternative \(H_1: p_1 \neq p_2\) in a two-arm binomial setting with Beta priors.
Usage
twoarmbinbf01(
y1,
y2,
n1,
n2,
a_0_a = 1,
b_0_a = 1,
a_1_a = 1,
b_1_a = 1,
a_2_a = 1,
b_2_a = 1
)Arguments
- y1
Number of successes in arm 1 (control).
- y2
Number of successes in arm 2 (treatment).
- n1
Sample size in arm 1.
- n2
Sample size in arm 2.
- a_0_a, b_0_a
Shape parameters of the Beta prior for the common-\(p\) under the null model (analysis prior).
- a_1_a, b_1_a
Shape parameters of the Beta prior for \(p_1\) under the alternative (analysis prior).
- a_2_a, b_2_a
Shape parameters of the Beta prior for \(p_2\) under the alternative (analysis prior).