The example I see in the documentation is COX regression https://docs.pymc.io/notebooks/survival_analysis.html I want to estimate the survival function，like this： https://lifelines.readthedocs.io/en/latest/Survival%20analysis%20with%20lifelines.html

There is a session in https://docs.pymc.io/nb_examples/index.html

How to use pymc3 for survival analysis?

Abraxas2071 January 28, 2019, 9:41am 3

with weibull_model:
    y_cens = pm.Potential(
        'y_cens', gumbel_sf(y_std[cens], η[cens_], s)
    )

What role does “Potential” play

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