To cite package ‘EESPCA’ in publications use:

  Frost HR (2026). _EESPCA: Eigenvectors from Eigenvalues Sparse
  Principal Component Analysis (EESPCA)_. R package version 0.8.0,
  <https://github.com/cranhaven/cranhaven.r-universe.dev>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {EESPCA: Eigenvectors from Eigenvalues Sparse Principal Component
Analysis (EESPCA)},
    author = {H. Robert Frost},
    year = {2026},
    note = {R package version 0.8.0},
    url = {https://github.com/cranhaven/cranhaven.r-universe.dev},
  }