To cite package ‘nullcat’ in publications use:

  Kling M (2026). _nullcat: Null Models for Categorical and Continuous
  Community Matrices_. R package version 0.2.0.9000,
  <https://github.com/matthewkling/nullcat>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {nullcat: Null Models for Categorical and Continuous Community Matrices},
    author = {Matthew Kling},
    year = {2026},
    note = {R package version 0.2.0.9000},
    url = {https://github.com/matthewkling/nullcat},
  }