Package: barrel
Title: Covariance-Based Ellipses and Annotation Tools for Ordination
        Plots
Version: 0.1.0
Authors@R: 
    person("Diego", "Barranco-Elena", , "diego.barranco@udl.cat", role = c("aut", "cre"))
Description: Provides tools to visualize ordination results in 'R' by adding covariance-based ellipses, centroids, vectors, and confidence regions to plots created with 'ggplot2'. 
    The package extends the 'vegan' framework and supports Principal Component Analysis (PCA), Redundancy Analysis (RDA), and Non-metric Multidimensional Scaling (NMDS). 
    Ellipses can represent either group dispersion (standard deviation, SD) or centroid precision (standard error, SE), following Wang et al. (2015) <doi:10.1371/journal.pone.0118537>. 
    Robust estimators of covariance are implemented, including the Minimum Covariance Determinant (MCD) method of Hubert et al. (2018) <doi:10.1002/wics.1421>. 
    This approach reduces the influence of outliers. 
    barrel is particularly useful for multivariate ecological datasets, promoting reproducible, publication-quality ordination graphics with minimal effort.
License: MIT + file LICENSE
Encoding: UTF-8
RoxygenNote: 7.3.3
Imports: robustbase, ggplot2, stats, ggrepel, vegan, grid, rlang
Suggests: knitr, rmarkdown, testthat (>= 3.0.0), vdiffr
Config/testthat/edition: 3
VignetteBuilder: knitr
Language: en-US
NeedsCompilation: no
Packaged: 2025-10-30 10:41:14 UTC; Usuari
Author: Diego Barranco-Elena [aut, cre]
Maintainer: Diego Barranco-Elena <diego.barranco@udl.cat>
Repository: CRAN
Date/Publication: 2025-11-03 19:20:07 UTC
Built: R 4.6.0; ; 2026-04-28 14:32:44 UTC; unix
