To cite the enhanced vioplot package in publications use:

Adler D, Kelly ST (2019). vioplot: violin plot. R package version 0.3.4, https://github.com/TomKellyGenetics/vioplot.

Please also acknowledge the original package: citation("vioplot")

Corresponding BibTeX entry:

  @Manual{,
    title = {vioplot: violin plot},
    author = {Daniel Adler and S. Thomas Kelly},
    year = {2019},
    note = {R package version 0.3.4},
    url = {https://github.com/TomKellyGenetics/vioplot},
  }