Rhat is 1.01 for one parameter out of 150. Is this bad?

[martinmodrak]

Ther is some inherent stochasticity in rhat, which mostly depends on the number of iterations you run.

To summarize the IMHO most important part from a thread on the topic Summarising Rhat values over multiple variables/fits

@avehtari

• I usually just eyeball the Rhats, but plotting a histogram of Rhats with a assumed distribution overlaid could be a useful way to look if the highest Rhats are suspiciously high.
• If in doubt, run more iterations

Best of luck with your model!