Installation Guide (Linux)

PyMC Installation for Linux

We recommend installing PyMC into a clean conda environment, which here is called pymc_env but can be changed to anything else:

conda create -n pymc_env python

Until PyMC v4 is officially released, it should be installed from pip using the --pre flag (N.B. running without this flag will install v2). Activate the environment that you wish to install into, and install as follows:

conda activate pymc_env
pip install pymc --pre

JAX sampling

If you wish to enable sampling using the JAX backend via NumPyro (experimental), the following should also be installed:

pip install jax jaxlib numpyro

Similarly, to use BlackJAX for sampling it should be installed via pip:

pip install blackjax

PyMC3 Installation

The latest release of PyMC3 can be installed from Conda Forge (conda-forge):

conda install -c conda-forge pymc3 theano-pymc mkl mkl-service

Note that you must specifically request theano-pymc or you will get an obsolete version of PyMC3 that works with the now-abandoned theano library. We encourage you to test this with the --dry-run flag to ensure you get up-to-date versions.

While discouraged due to reports of installation problems you could try to install PyMC3 and its dependencies via PyPI using pip:

pip install pymc3