To cite package ‘hpsreg’ in publications use:

  Varadhan R (2026). “Hierarchical Pairwise Scoring: A Regression
  Framework for Composite Outcomes, with Application to Hematopoietic
  Stem Cell Transplantation.” Manuscript in preparation.

A BibTeX entry for LaTeX users is

  @Unpublished{varadhan2026hps,
    title = {Hierarchical Pairwise Scoring: A Regression Framework for Composite Outcomes, with Application to Hematopoietic Stem Cell Transplantation},
    author = {Ravi Varadhan},
    year = {2026},
    note = {Manuscript in preparation},
  }