To cite package ‘IVPP’ in publications use:

  Du X (2025). _IVPP: Invariance Partial Pruning Test_. R package
  version 1.1.0, <https://github.com/xinkaidupsy/ivpp>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {IVPP: Invariance Partial Pruning Test},
    author = {Xinkai Du},
    year = {2025},
    note = {R package version 1.1.0},
    url = {https://github.com/xinkaidupsy/ivpp},
  }