To cite package ‘hexbin’ in publications use:

  Carr D, Lewin-Koh N, Maechler M, Sarkar D (2026). _hexbin: Hexagonal
  Binning Routines_. R package version 1.28.7,
  <https://github.com/edzer/hexbin>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {hexbin: Hexagonal Binning Routines},
    author = {Dan Carr and Nicholas Lewin-Koh and Martin Maechler and Deepayan Sarkar},
    year = {2026},
    note = {R package version 1.28.7},
    url = {https://github.com/edzer/hexbin},
  }
