Decision Reliability for Genotype Advancement under Prediction and Target Environment Uncertainty R package BreedReliabR version 0.1.1 A model-agnostic research layer for genotype advancement decisions from externally fitted genomic prediction models. It propagates full joint coefficient prediction-error covariance together with finite sampling from a specified target population of environments to calculate conditional advancement probabilities, expected selected-set reliability, and the relative contributions of prediction and target-environment uncertainty. It also compares uncertainty formulations and reports geometric support diagnostics. Probabilities are conditional on supplied inputs and are not guaranteed to be calibrated in new populations or environments. Software Depends: R (>= 3.6.0) Imports: stats, graphics Suggests: testthat (>= 3.0.0), knitr, rmarkdown Ashutosh Sawarkar <annu.sawarkar@gmail.com> Comprehensive R Archive Network (CRAN) Ashutosh Sawarkar [aut, cre] (ORCID: <https://orcid.org/0000-0002-1016-8822>), Santosh Patil [aut] (ORCID: <https://orcid.org/0000-0002-5370-3522>) MIT + file LICENSE (https://CRAN.R-project.org/package=BreedReliabR/LICENSE) 2026-10-16 application/tgz https://CRAN.R-project.org/package=BreedReliabR doi:10.32614/CRAN.package.BreedReliabR