To cite package ‘barrel’ in publications use:

Author A (2025). barrel: Covariance-Based Ellipses for Ordination Plots. R package version 0.1.0, https://github.com/barrancoelena/barrel.

Corresponding BibTeX entry:

  @Manual{,
    title = {barrel: Covariance-Based Ellipses for Ordination Plots},
    author = {Anonymous Author},
    year = {2025},
    note = {R package version 0.1.0},
    url = {https://github.com/barrancoelena/barrel},
  }