stan-dev / stan-dev/rstan

pairs() doesn't allow visualizing sampler diagnostics

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R
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Description

Pairs(stanfit) doesn't seem to allow me to add sampler diagnostics such as "energy__" to the plotted parameters (via argument "pars"). This would be very useful.

Rstan version: 2.19.2
R version 3.6.1
Windows 7

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Research direction

Start by tracing pairs(stanfit), focusing on how its pars argument selects plotted parameters. Check how sampler diagnostics such as energy__ are represented in the stanfit object and verify that they can be included in the plots; done means pairs() accepts and visualizes them through pars.

Written by the indexing model from the issue text.

Assessment

Tech stack
r
Domain
data-visualization
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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