lik_binom: Likelihood object for Binomial error distribution
Description
Creates a likelihood object for ash for use with Binomial error distribution
Usage
lik_binom(y, n, link = c("identity", "logit"))
Arguments
y
Binomial observations
n
Binomial number of trials
link
Link function. The "identity" link directly puts unimodal prior on Binomial success
probabilities p, and "logit" link puts unimodal prior on logit(p).
Details
Suppose we have Binomial observations y where \(y_i\sim Bin(n_i,p_i)\).
We either put an unimodal prior g on the success probabilities \(p_i\sim g\) (by specifying
link="identity") or on the logit success probabilities \(logit(p_i)\sim g\)
(by specifying link="logit"). Either way, ASH with this Binomial likelihood function
will compute the posterior mean of the success probabilities \(p_i\).