Package: RobustFlow
Title: Robustness and Drift Auditing for Longitudinal Decision Systems
Version: 0.1.1
Authors@R: person("Subir", "Hait",
    email = "haitsubi@msu.edu",
    role  = c("aut", "cre"),
    comment = c(ORCID = "0009-0004-9871-9677"))
Description: Provides tools for constructing longitudinal decision
        paths, quantifying temporal drift, tracking subgroup disparity
        trajectories, and stress-testing longitudinal conclusions under
        hidden bias. Implements three signature metrics: the Drift
        Intensity Index (DII), which measures structural instability in
        transition dynamics using the Frobenius norm of consecutive
        transition matrix differences; the Bias Amplification Index
        (BAI), which quantifies whether group disparities widen or
        converge over time; and the Temporal Fragility Index (TFI),
        which estimates the minimum hidden-bias perturbation required
        to nullify a longitudinal trend conclusion. An interactive
        'shiny' application supports exploratory analysis,
        visualization, and reproducible reporting. Methods are
        motivated by applications in educational and social science
        research, including the Early Childhood Longitudinal Study
        (ECLS). The DII is based on the Frobenius norm as described in
        Golub and Van Loan (2013, ISBN:9781421407944). The TFI extends
        the hidden-bias sensitivity framework of Rosenbaum (2002,
        ISBN:9781441912633). The BAI draws on disparity-trajectory
        methods discussed in Duncan and Murnane (2011,
        ISBN:9780871542731).
Depends: R (>= 4.2.0)
Imports: shiny (>= 1.7.0), golem (>= 0.4.0), bslib (>= 0.5.0), ggplot2
        (>= 3.4.0), DT (>= 0.27), plotly (>= 4.10.0), scales (>=
        1.2.0), htmltools (>= 0.5.0), rmarkdown (>= 2.20), stats,
        tools, utils
Suggests: testthat (>= 3.0.0), knitr, covr, withr
License: GPL (>= 3)
Encoding: UTF-8
Roxygen: list(markdown = TRUE)
RoxygenNote: 7.3.3
Config/testthat/edition: 3
VignetteBuilder: knitr
URL: https://github.com/causalfragility-lab/RobustFlow
BugReports: https://github.com/causalfragility-lab/RobustFlow/issues
Config/pak/sysreqs: cmake make libicu-dev libuv1-dev libssl-dev
        zlib1g-dev
Repository: https://causalfragility-lab.r-universe.dev
Date/Publication: 2026-04-22 12:43:09 UTC
RemoteUrl: https://github.com/causalfragility-lab/robustflow
RemoteRef: HEAD
RemoteSha: 681d743fad7d26e16337a704ac852a34c762aed4
NeedsCompilation: no
Packaged: 2026-07-22 07:02:41 UTC; root
Author: Subir Hait [aut, cre] (ORCID: <https://orcid.org/0009-0004-9871-9677>)
Maintainer: Subir Hait <haitsubi@msu.edu>