arviz-devs / arviz

Exploratory analysis of Bayesian models with Python
https://python.arviz.org
Apache License 2.0
1.62k stars 407 forks source link

nested-Rhat #2116

Open avehtari opened 2 years ago

avehtari commented 2 years ago

Add nested-Rhat as described in

This needs additional superchain index (chains are grouped to superchains). It would be probably easiest to have an additional argument which would be an array with as many elements as the number of chains and the values would tell the superchain id for each chain.

ayashabbar commented 2 years ago

Hello, Is there any one working on this issue? I would like to start working on it.

ahartikainen commented 2 years ago

Hi, feel free to start to implement this.

Let's discuss in the PR what kind of API do we need for this.