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DOC: clarify ZarrTrace incompatibility with external samplers #8005

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DOC: clarify ZarrTrace incompatibility with external samplers #8005

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6 changes: 6 additions & 0 deletions pymc/sampling/mcmc.py
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Expand Up @@ -586,6 +586,12 @@ def sample(
of their execution will write the partial results onto the storage. If the
storage persist on disk, these results should be available even after a server
crash. See :class:`~pymc.backends.zarr.ZarrTrace` for more information.
.. note::

The ``ZarrTrace`` backend is currently only supported when using
PyMC’s built-in samplers. It is not compatible with external samplers
such as NumPyro (``nuts_sampler="numpyro"``), which bypass PyMC’s
internal sampling loop.
discard_tuned_samples : bool
Whether to discard posterior samples of the tune interval.
compute_convergence_checks : bool, default=True
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