To cite package ‘kvr2’ in publications use:

  Kobayashi M (2026). _kvr2: Calculate and Compare Multiple Definitions
  of Coefficient of Determination_. R package version 0.2.0.9000,
  <https://github.com/indenkun/kvr2>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {kvr2: Calculate and Compare Multiple Definitions of Coefficient of
Determination},
    author = {Mao Kobayashi},
    year = {2026},
    note = {R package version 0.2.0.9000},
    url = {https://github.com/indenkun/kvr2},
  }