JuliaEarth/GeoStats.jl

Implement `@formula` support in `Kriging` model

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#573 opened on Apr 11, 2026

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Description

Currently, our Kriging model allows the specification of the mean as a vector of values. Each value is associated with a covariate and can be a constant (simple Kriging) or a function (Universal Kriging). It would be convenient to specify a @formula from StatsModels.jl as an alternative (regression Kriging).

Contributor guide

Research direction
Study the StatsModels.jl @formula macro and integrate it into the Kriging model to allow specifying mean as a formula. Look at existing Kriging code and see how mean is currently handled. Then implement parsing of formulas and map them to the existing mean specification.
Tech stack
None
Domain
backenddatamachine learning
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
JuliaStatsModels.jl
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40