DecisionDrift: Detecting, Decomposing, and Stress-Testing Temporal Change in
Repeated Decision Systems
Tools for detecting, decomposing, and testing temporal change in
repeated binary decision systems. Decomposes each change in the decision
rate into inflow (uptake) and outflow (reversal) through the
marginal-transition identity, separates net change from gross turnover,
and splits aggregate change into within-group and composition components
with a symmetric midpoint decomposition. A unit-level cluster bootstrap
gives intervals for every component and a global test of process
stability with family-wise-adjusted contrasts and simultaneous confidence
bands. Also provides prevalence and transition drift summaries, entropy
trends, group-differential drift, change-point diagnostics, robustness and
sensitivity analyses, an integrated audit, and a simulator for stable,
marginal, masked, abrupt, group-masked, and composition-change scenarios.
Complements the 'decisionpaths' package. Applications include algorithmic
audit, AI governance, education, health, and organisational research.
| Version: |
0.2.0 |
| Depends: |
R (≥ 4.1.0) |
| Imports: |
cli (≥ 3.0.0), rlang (≥ 0.4.0), stats, tibble (≥ 3.0.0), utils |
| Suggests: |
decisionpaths, ggplot2 (≥ 3.3.0), knitr, patchwork, rmarkdown, testthat (≥ 3.0.0) |
| Published: |
2026-10-17 |
| DOI: |
10.32614/CRAN.package.DecisionDrift |
| Author: |
Subir Hait  [aut,
cre] |
| Maintainer: |
Subir Hait <haitsubi at msu.edu> |
| BugReports: |
https://github.com/subirhait/DecisionDrift/issues |
| License: |
MIT + file LICENSE |
| URL: |
https://github.com/subirhait/DecisionDrift |
| NeedsCompilation: |
no |
| Language: |
en-GB |
| Materials: |
README, NEWS |
| CRAN checks: |
DecisionDrift results |
Documentation:
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