Package: spaAlign
Title: Stratigraphic Plug Alignment for Integrating Plug-Based and XRF
        Data
Version: 0.0.6
Authors@R: c(
    person(given = c("Hope", "E."),
           family = "Omodolor",
           email = "hopeomodolor@gmail.com",
           role = c("aut", "cre"),
           comment = c(ORCID = "0009-0005-7842-406X")),
    person(given = c("Jeffrey", "M."),
           family = "Yarus",
           role = "aut")
    )
Description: Implements the Stratigraphic Plug Alignment (SPA) procedure for
    integrating sparsely sampled plug-based measurements (e.g., total organic
    carbon, porosity, mineralogy) with high-resolution X-ray fluorescence
    (XRF) geochemical data. SPA uses linear interpolation via the base
    approx() function with constrained extrapolation (rule = 1) to preserve
    stratigraphic order and avoid estimation beyond observed depths. The
    method aligns all datasets to a common depth grid, enabling high-resolution
    multivariate analysis and stratigraphic interpretation of core-based
    datasets such as those from the Utica and Point Pleasant formations.
    See R Core Team (2025)
    <https://stat.ethz.ch/R-manual/R-devel/library/stats/html/stats-package.html>
    and Omodolor (2025)
    <http://rave.ohiolink.edu/etdc/view?acc_num=case175262671767524>
    for methodological background and geological context.
License: MIT + file LICENSE
Encoding: UTF-8
RoxygenNote: 7.3.3
Depends: R (>= 4.0)
Imports: stats
Suggests: testthat (>= 3.0.0), knitr, rmarkdown
Config/testthat/edition: 3
NeedsCompilation: no
Packaged: 2026-01-07 05:28:00 UTC; hxo76
Author: Hope E. Omodolor [aut, cre] (ORCID:
    <https://orcid.org/0009-0005-7842-406X>),
  Jeffrey M. Yarus [aut]
Maintainer: Hope E. Omodolor <hopeomodolor@gmail.com>
Repository: CRAN
Date/Publication: 2026-01-08 04:20:02 UTC
Built: R 4.6.0; ; 2026-04-25 22:28:50 UTC; unix
