To cite package ‘circtree’ in publications use:

Lang M, Schlosser L, Zeileis A (2026). circtree: Regression Trees and Forests for Circular Responses. R package version 0.1-0, https://r-forge.r-project.org/projects/partykit.

Corresponding BibTeX entry:

  @Manual{,
    title = {circtree: Regression Trees and Forests for Circular
      Responses},
    author = {Moritz N. Lang and Lisa Schlosser and Achim Zeileis},
    year = {2026},
    note = {R package version 0.1-0},
    url = {https://r-forge.r-project.org/projects/partykit},
  }