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
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
NeedsCompilation: no
Packaged: 2026-04-22 12:44:24 UTC; Subir
Author: Subir Hait [aut, cre] (ORCID: <https://orcid.org/0009-0004-9871-9677>)
Maintainer: Subir Hait <haitsubi@msu.edu>
Repository: CRAN
Date/Publication: 2026-04-22 14:00:13 UTC
Built: R 4.6.0; ; 2026-04-25 13:21:38 UTC; unix
