To cite package ‘iconic’ in publications use:

Bresnahan S, Xiong C (2026). iconic: Causal Model Selection with Genetic Instruments and Negative Controls. R package version 0.99.3, https://github.com/sbresnahan/iconic.

Corresponding BibTeX entry:

  @Manual{,
    title = {iconic: Causal Model Selection with Genetic Instruments
      and Negative Controls},
    author = {Sean T. Bresnahan and Charis Xiong},
    year = {2026},
    note = {R package version 0.99.3},
    url = {https://github.com/sbresnahan/iconic},
  }