stan-dev / stan-dev/math

FR: vector nu for multi_student_t

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

A recent thread on the forums reminded me that this isn't available yet, but Ben Bales provided guidance on how to implement it by hand.

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

Start by reading the linked forum discussion and locating the existing multi_student_t entry point in the Stan Math Library. Determine the intended vector-valued nu behavior from that guidance, then identify the corresponding validation and distribution tests. Done means multi_student_t supports a vector nu consistently with the documented behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
data
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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