To cite package ‘hexDensity’ in publications use:

Nguyen Q, Chen Y (2025). hexDensity: Fast Kernel Density Estimation with Hexagonal Grid. R package version 1.4.10, https://github.com/chenlaboratory/hexdensity.

Corresponding BibTeX entry:

  @Manual{,
    title = {hexDensity: Fast Kernel Density Estimation with Hexagonal
      Grid},
    author = {Quoc Hoang Nguyen and Yunshun Chen},
    year = {2025},
    note = {R package version 1.4.10},
    url = {https://github.com/chenlaboratory/hexdensity},
  }