There is a new bug in fast_sample_posterior_predictive() in pymc version 3.11.2, a bug that was not present as recently as version 3.9.3. The bug is not present in sample_posterior_predictive(). Here’s a minimal example that exhibits the bug. Note that the example uses @lucianopaz 's model factory …

New bug in fast sample posterior predictive

bridgeland July 9, 2021, 9:12pm 2

Perhaps this should be reported as a bug on github instead?

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