stan-dev / stan-dev/bayesplot

mcmc_recover_intervals extensions - bias + coverage

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feature
Dominant language
R
Stars
442
Forks
93
Avg merge
3h 11m
Merged PRs (30d)
1

Description

Hi!

I just discovered the intervals function which looks great! I know that I should put all of my parameters one the unit-scale, but in practice I sometimes don't do that (even thought I should, I know). For these circumstances it would be nice to plot things as bias. So instead of showing the true values along with the intervals I would like to see an option which would allow me plot the bias.

Of course, the concept of bias is shaky in a Bayesian world, but as long as I can be sure that my prior is weakly-informative, I would like to be able to do that.

Another very useful extensions (I am happy to open another issue) would be a plot of the coverage when I replicate things a lot of times.

BTW, these tools look awesome to me!

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First steps

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  3. Fork the repository and make your change on a branch.
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Research direction

Start by locating the intervals function and reviewing how it currently plots true values alongside intervals. Separate the proposed bias view from the replicated-coverage plot, then clarify their expected inputs, outputs, and completion criteria before implementing either extension.

Written by the indexing model from the issue text.

Assessment

Tech stack
r
Domain
data-visualization
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
38/100

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