Fit Bayesian hierarchical models of animal abundance and occurrence
via the 'rstan' package, the R interface to the 'Stan' C++ library.
Supported models include single-season occupancy, dynamic occupancy, and
N-mixture abundance models. Covariates on model parameters are specified
using a formula-based interface similar to package 'unmarked', while also
allowing for estimation of random slope and intercept terms. References:
Carpenter et al. (2017)