Approximate Algorithm for Horseshoe Prior
Run approximate MCMC algorithm for horseshoe prior
Run exact MCMC algorithm for horseshoe prior
Mhorseshoe: Approximate Algorithm for Horseshoe Prior
rejection sampler to update local shrinkage parameters lambda.
Provides exact and approximate algorithms for the horseshoe prior in linear regression models, which were proposed by Johndrow et al. (2020) <https://www.jmlr.org/papers/v21/19-536.html>.