To cite package ‘lpridge’ in publications use:

Seifert B, Maechler M (2026). lpridge: Local Polynomial (Ridge) Regression. R package version 1.1-1, https://r-forge.r-project.org/projects/curves-etc.

Corresponding BibTeX entry:

  @Manual{,
    title = {lpridge: Local Polynomial (Ridge) Regression},
    author = {Burkhardt Seifert and Martin Maechler},
    year = {2026},
    note = {R package version 1.1-1},
    url = {https://r-forge.r-project.org/projects/curves-etc},
  }