MCMCprecision: Precision of discrete MCMC

The R package MCMCprecision estimates the precision of the posterior model probabilities in transdimensional Markov chain Monte Carlo methods (e.g., reversible jump MCMC or product-space MCMC). This is useful for applications of transdimensional MCMC such as model selection, mixtures with varying numbers of components, change-point detection, capture-recapture models, phylogenetic trees, variable selection, and for discrete parameters in MCMC output in general.

Installing MCMCprecision

MCMCprecision can be directly installed from CRAN:


Alternatively, the package can be installed from the GitHub repository ( by pasting the following code to R (dependencies need to be installed manually):

### Dependencies:
# install.packages(c("combinat", "devtools","RcppProgress","RcppArmadillo", "RcppEigen"))

To compile C++ code, Windows requires Rtools and Mac Xcode Command Line Tools, respectively. Moreover, on Mac, it might be necessary to install the library gfortran manually by typing the following into the console (required to compile the package RcppArmadillo):

curl -O
sudo tar fvxz gfortran-4.8.2-darwin13.tar.bz2 -C /