Some time ago, we discussed what to put in the warning Stan issues about divergent transitions at Text for warning message Since then, we have a public-facing, but not really used link http://discourse.mc-stan.org/divergences that currently redirects to Divergent transitions - a primer but we can …

Yes. Yes - I think that will provide ppl with an exhaustive view of things they can do. :)

Tagging the participants from the previous discussion: @andrewgelman , @bgoodri , @betanalpha , @bbbales2 , @jonah , @mitzimorris

I very much like the idea of having a link to a webpage rather than trying to cram advice into a warning message.

As I said in the previous discussion the current “how to” is problematic and misleading. Investigating and resolving to diagnostics is an open ended process that cannot be reduced to a simple checklist no matter how convenient that would be, and trying to force that convenience only misleads users …

[image] betanalpha: That said given the unproductive history of the conversations on this particular topic I will not be commenting further and just hope that whatever goes up respects the users enough to warn them of its incomplete nature. I don’t think I understand what exactly you consider…

I do hope @betanalpha reconsiders and responds. I am fascinated by the fact that divergences actually get to the epistemology of Bayesian models. What does it mean for a model to be “good” or give “good” results? In a sense, what Michael says, [image] Divergent transitions - a primer particular…

Divergent transitions warning message

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Divergent transitions - a primer General howto , divergences	8	16266	August 20, 2025
Text for warning message General	46	6650	August 11, 2020
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Divergent transitions warning message

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