What is JAGS?
JAGS is Just Another Gibbs Sampler. It is a program for
analysis of Bayesian hierarchical models using Markov Chain Monte
Carlo (MCMC) simulation not wholly unlike BUGS. JAGS was written
with three aims in mind:
JAGS is licensed under the GNU General Public License version 2. You
may freely modify and redistribute it under certain conditions (see
the file COPYING for details).
- To have a cross-platform engine for the BUGS language
- To be extensible, allowing users to write their own functions,
distributions and samplers.
- To be a plaftorm for experimentation with ideas in Bayesian
See the JAGS NEWS
blog for news about the project. If you want to be kept
informed of updates to JAGS, then subscribe to the RSS news feed.
The latest release is JAGS 4.2.0. It was released on February
To download JAGS, please visit the files page
of the mcmc-jags project at sourceforge. You will find the
source for JAGS there as well as binary packages for Mac OS X
(Thanks to Matt Denwood and the pioneering work of Bill Northcott)
Binaries for Linux are distributed separately. There are
packages for various
RPM-based Linux distributions (RHEL 5, 6, 7; OpenSuSE 13.1,
13.2, TumbleWeed; CentOS 5, 6, 7; Fedora 20) (Thanks to Lars
and the development version of Ubuntu
(Thanks to Dirk Eddelbuettel). You can track the current
status of the Debian packages here. Another
repository for older versions of Ubuntu is provided by Michael
Daniel Meliza also maintains a port of JAGS on MacPorts.
The JAGS source code is hosted on a Mercurial repository at
Sourceforge. If you want to keep track of the development version,
you can find downloading instructions here.
Last updated 13 September