To cite package ‘smbdata’ in publications use:

  Tanaka E (2026). _smbdata: Data from "Statistical Methods in
  Biology"_. R package version 0.2.0.9000,
  <https://github.com/emitanaka/smbdata>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {smbdata: Data from "Statistical Methods in Biology"},
    author = {Emi Tanaka},
    year = {2026},
    note = {R package version 0.2.0.9000},
    url = {https://github.com/emitanaka/smbdata},
  }