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spaAlign
View on CRAN: Click
here
Download and install spaAlign package within the R console
Install from CRAN:
install.packages("spaAlign")
Install from Github:
library("remotes")
install_github("cran/spaAlign") Install by package version:
library("remotes")
install_version("spaAlign", "0.0.6") Attach the package and use:
library("spaAlign")
Maintained by
Hope E. Omodolor
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First Published: 2025-12-18
Latest Update: 2025-12-18
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.
How to cite:
Hope E. Omodolor (2025). spaAlign: Stratigraphic Plug Alignment for Integrating Plug-Based and XRF Data. R package version 0.0.6, https://cran.r-project.org/web/packages/spaAlign. Accessed 25 Oct. 2026.
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