stan-dev / stan-dev/math

Tweedie Distribution

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feature
Dominant language
C++
Stars
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Forks
220
Avg merge
2d 4h
Merged PRs (30d)
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Description

This distribution is useful for zero inflated data. It would be nice to be able to include it in Stan. There is an existing R package for maximum likelihood estimation:
https://cran.r-project.org/web/packages/tweedie/tweedie.pdf

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No source file, test, or entry point is named. Begin by reading the linked R package documentation and comparing its Tweedie definition with the requested Stan support; done requires an agreed implementation scope and corresponding distribution support.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
data
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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