Before pymc4 was released, I used to use Arviz to plot the output of sample_posterior_predictive. Specifically, the documentation mentioned to use arviz.from_pymc3(). Unfortunately, this method no longer exists, and I have not been able to find what the alternative is in the documentation. The post…

In general, I think you call to pm.sample() and get an inferenceData object back: with model: idata = pm.sample()` And then you call pm.sample_posterior_predictive() and ask the posterior predictive samples to be added to the existing inferenceData object: with model: pm.sample_posterior_…

Plotting Sample_Posterior_Predictive output with Arviz

Questions v5

OriolAbril January 25, 2023, 10:24am 3

You might also want to take a look at Prior and Posterior Predictive Checks — PyMC 5.0.2 documentation

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Plotting Sample_Posterior_Predictive output with Arviz

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