stan-dev / stan-dev/math

Add embedded laplace RNGs for out-of-sample prediciton

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feature new function
Dominant language
C++
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Merged PRs (30d)
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Description

These will require some extra work by the user to be able to compute the cross-terms, meaning either an extra function argument or additional overloads of the UDF they provide.

We will likely use the name _pred_rng. These will be implemented after #2594

cc @SteveBronder @charlesm93

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Research direction

Start by reviewing the work tracked in #2594, which this issue identifies as a prerequisite. Then trace the existing UDF interface and prediction-related RNG handling; done means embedded Laplace RNGs support out-of-sample prediction and provide a defined way to compute cross-terms, using an extra argument or overloads as appropriate.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
tooling
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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