To cite package ‘rolleigen’ in publications use:

  Foster J (2026). _rolleigen: Rolling Eigenanalysis_. R package
  version 1.0.0, <https://CRAN.R-project.org/package=rolleigen>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {rolleigen: Rolling Eigenanalysis},
    author = {Jason Foster},
    year = {2026},
    note = {R package version 1.0.0},
    url = {https://CRAN.R-project.org/package=rolleigen},
  }