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Boom (version 0.4)

beta.prior: Beta prior for a binomial proportion

Description

Specifies beta prior distribution for a binomial probability parameter.

Usage

BetaPrior(a = 1, b = 1, mean = NULL, sample.size = NULL)

Arguments

a
A positive real number interpretable as a prior success count.
b
A positive real number interpretable as a prior failure count.
mean
A positive real number representing a/(a+b).
sample.size
A positive real number representing a+b.

Details

The distribution should be specified either with a and b, or with mean and sample.size.

References

Gelman, Carlin, Stern, Rubin (2003), "Bayesian Data Analysis", Chapman and Hall.