BORG: Bounded Outcome Risk Guard for Model Evaluation

Comprehensive toolkit for valid spatial, temporal, and grouped model evaluation. Automatically detects data dependencies (spatial autocorrelation, temporal structure, clustered observations), generates appropriate cross-validation schemes (spatial blocking, checkerboard, hexagonal, KNNDM, environmental blocking, leave-location-out, purged CV), and validates evaluation pipelines for leakage. Includes area of applicability (AOA) assessment following Meyer & Pebesma (2021) <doi:10.1111/2041-210X.13650>, forward feature selection with blocked CV, spatial thinning, block-permutation variable importance, extrapolation detection, and interactive visualizations. Integrates with 'tidymodels', 'caret', 'mlr3', 'ENMeval', and 'biomod2'. Based on evaluation principles described in Roberts et al. (2017) <doi:10.1111/ecog.02881>, Kaufman et al. (2012) <doi:10.1145/2382577.2382579>, Kapoor & Narayanan (2023) <doi:10.1016/j.patter.2023.100804>, and Linnenbrink et al. (2024) <doi:10.5194/gmd-17-5897-2024>.

Version: 0.3.1
Depends: R (≥ 4.1.0)
Imports: Rcpp, methods, stats, utils
LinkingTo: Rcpp
Suggests: caret, ggplot2 (≥ 3.4.0), leaflet, rsample, tidyselect, recipes, mlr3, sf, terra, tidyterra, ranger, parsnip, workflows, xgboost, lightgbm, future.apply, testthat (≥ 3.0.0), knitr, rmarkdown
Published: 2026-03-29
DOI: 10.32614/CRAN.package.BORG
Author: Gilles Colling ORCID iD [aut, cre, cph]
Maintainer: Gilles Colling <gilles.colling051 at gmail.com>
BugReports: https://github.com/gcol33/BORG/issues
License: MIT + file LICENSE
URL: https://github.com/gcol33/BORG, https://gillescolling.com/BORG/
NeedsCompilation: yes
Language: en-US
Citation: BORG citation info
Materials: README, NEWS
CRAN checks: BORG results

Documentation:

Reference manual: BORG.html , BORG.pdf
Vignettes: Framework Integration (source, R code)
Quick Start (source, R code)
Risk Taxonomy (source, R code)

Downloads:

Package source: BORG_0.3.1.tar.gz
Windows binaries: r-devel: BORG_0.3.1.zip, r-release: BORG_0.2.5.zip, r-oldrel: BORG_0.3.1.zip
macOS binaries: r-release (arm64): BORG_0.3.1.tgz, r-oldrel (arm64): BORG_0.2.5.tgz, r-release (x86_64): BORG_0.3.1.tgz, r-oldrel (x86_64): BORG_0.3.1.tgz
Old sources: BORG archive

Linking:

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