update GLM-truncated-censored-regression for PyMC 6

[fonnesbeck]

Summary

• Replace four az.plot_posterior(..., ref_val=...) calls with az.plot_dist(...) + az.add_lines(pc, {"slope": slope}) since ref_val= was removed and add_lines now takes a PlotCollection.
• Used pc.add_title(...) instead of pc.figure.suptitle(...) (the latter is not exposed on PlotCollection);
• dropped the shared fig, ax = plt.subplots(...) grid since the modular API doesn't accept Axes.

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aloctavodia commented on 2026-05-11T07:17:29Z
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Something like this could also work here:

pc = az.plot_dist({"linear": trunc_linear_fit,

"censored":cens_linear_fit},

var_names=["slope"],

visuals={"point_estimate_text": False,

"title": {"text": "Linear regression"},

}

)

az.add_lines(pc, slope)

pc.add_legend("model")

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aloctavodia commented on 2026-05-11T07:17:30Z
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similar to my previous comment