pypi i pymcmcstat


Python implementation of MATLAB toolbox "mcmcstat"

by Paul Miles

1.9.1 (see all)License:MIT
pypi i pymcmcstat


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The pymcmcstat <>__ package is a Python program for running Markov Chain Monte Carlo (MCMC) simulations. Included in this package is the ability to use different Metropolis based sampling techniques:

  • Metropolis-Hastings (MH): Primary sampling method.
  • Adaptive-Metropolis (AM): Adapts covariance matrix at specified intervals.
  • Delayed-Rejection (DR): Delays rejection by sampling from a narrower distribution. Capable of n-stage delayed rejection.
  • Delayed Rejection Adaptive Metropolis (DRAM): DR + AM

This package is an adaptation of the MATLAB toolbox mcmcstat <>_. The user interface is designed to be as similar to the MATLAB version as possible, but this implementation has taken advantage of certain data structure concepts more amenable to Python.

Note, advanced plotting routines are available in the mcmcplot <> package. Many plotting features are directly available within pymcmcstat <>, but some user's may find mcmcplot <>__ useful.


This code can be found on the Github project page <>_. This package is available on the PyPI distribution site and the latest version can be installed via


pip install pymcmcstat

The master branch on Github typically matches the latest version on the PyPI distribution site. To install the master branch directly from Github,


pip install git+

You can also clone the repository and run python install.

Getting Started

  • Tutorial notebooks <>_
  • Documentation <>_
  • Release history <>_
  • Contributing guidelines <>_


MIT <>_


See the GitHub contributor page <>_

Citing pymcmcstat

Miles, (2019). pymcmcstat: A Python Package for Bayesian Inference Using Delayed Rejection Adaptive Metropolis. Journal of Open Source Software, 4(38), 1417,

Also, please cite the appropriate Zenodo archive <>_ for the version of pymcmcstat that you are using.


  • Feature Request <>_
  • Bug Report <>_


This work was sponsored in part by the NNSA Office of Defense Nuclear Nonproliferation R&D through the Consortium for Nonproliferation Enabling Capabilities.


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