Adaptively annealed thermodynamic integration with Stan
TIStan is a Python 3 package that implements adaptively-annealed thermodynamic integration for model evidence estimation. This package makes use of PyStan's implementation of the No U-Turn Sampler for refreshing the sample population at each inverse temperature increment. A paper will soon be published with a detailed description of this package, and it will be linked here at that time.
This package may be installed using pip:
pip install TIStan
TIStan depends on pystan, numpy, and dill. These packages should be installed by pip automatically if they are not present in your Python installation.
After installation, a dummy test can be run to make sure everything was installed correctly. This test will not produce valid evidence values. From a Python 3 console run,
from TIStan.tests import tests out = tests.dummy_test()
To run a more thorough test that should produce valid evidence values for the example problem run,
from TIStan.tests import tests out = tests.full_test()
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