Package: CausalSpline
Type: Package
Title: Nonlinear Causal Dose-Response Estimation via Splines
Version: 0.1.0
Authors@R: 
    person("Subir", "Hait", email = "haitsubi@msu.edu",
           role = c("aut", "cre"),
           comment = c(ORCID = "0009-0004-9871-9677"))
Description: Estimates nonlinear causal dose-response functions for
        continuous treatments using spline-based methods under standard
        causal assumptions (unconfoundedness / ignorability).
        Implements three identification strategies: Inverse Probability
        Weighting (IPW) via the generalised propensity score (GPS),
        G-computation (outcome regression), and a doubly-robust
        combination. Natural cubic splines and B-splines are supported
        for both the exposure-response curve f(T) and the propensity
        nuisance model. Pointwise confidence bands are obtained via the
        sandwich estimator or nonparametric bootstrap. Also provides
        fragility diagnostics including pointwise curvature-based
        fragility, uncertainty-normalised fragility, and regional
        integration over user-defined treatment intervals. Builds on
        the framework of Hirano and Imbens (2004)
        <doi:10.1111/j.1468-0262.2004.00481.x> for continuous
        treatments and extends it to fully nonparametric spline
        estimation.
License: GPL (>= 3)
Encoding: UTF-8
RoxygenNote: 7.3.3
Depends: R (>= 4.1.0)
Imports: splines, stats, utils, ggplot2 (>= 3.4.0), sandwich, boot
Suggests: testthat (>= 3.0.0), knitr, rmarkdown, patchwork, cobalt,
        dplyr
VignetteBuilder: knitr
Config/testthat/edition: 3
URL: https://github.com/causalfragility-lab/CausalSpline
BugReports: https://github.com/causalfragility-lab/CausalSpline/issues
Repository: https://subirhait.r-universe.dev
Date/Publication: 2026-03-21 12:37:42 UTC
RemoteUrl: https://github.com/subirhait/causalspline
RemoteRef: HEAD
RemoteSha: d3522dc0745e4a886b81b78e63b4ccc262c22da4
NeedsCompilation: no
Packaged: 2026-09-20 09:21:46 UTC; root
Author: Subir Hait [aut, cre] (ORCID: <https://orcid.org/0009-0004-9871-9677>)
Maintainer: Subir Hait <haitsubi@msu.edu>
