To cite package ‘smimodel’ in publications use:

  Palihawadana N (2026). _smimodel: Sparse Multiple Index Models for
  Nonparametric Forecasting_. R package version 0.1.3,
  <https://github.com/nuwani-palihawadana/smimodel>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {smimodel: Sparse Multiple Index Models for Nonparametric Forecasting},
    author = {Nuwani Palihawadana},
    year = {2026},
    note = {R package version 0.1.3},
    url = {https://github.com/nuwani-palihawadana/smimodel},
  }