utils_mumhproposaldist: Proposal Distribution for MH Step for mu
Description
This function caculates realizations from the proposal distribution for mu in
the Metropolis-Hastings (MH) step in the hybrid Gibbs sampler used in the
EpiBayes_ns and EpiBayes_s functions. Recall,
in the context of disease freedom, mu was the average disease prevalence
in a given diseased cluster of subjects.
Usage
utils_mumhproposaldist(mumh, mumh.alpha, mumh.beta, mumh.alphastar, mumh.betastar)
Arguments
mumh
The proposed or old value of mu.
mumh.alpha
The old first shape parameter.
mumh.beta
The old second shape parameter.
mumh.alphastar
The new first shape parameter.
mumh.betastar
The new second shape parameter.
Value
A realization from the (beta) proposal distribution.
References
Norets, A. and Tang, X. MCMC estimation of a finite beta mixture. Technical
report, Princeton University, 2010.