To cite package ‘GRAPPLE’ in publications use:

  Wang J, Zhao Q (2024). _GRAPPLE: R Package for MR Framework GRAPPLE_.
  R package version 0.2.2, <https://github.com/jingshuw/grapple>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {GRAPPLE: R Package for MR Framework GRAPPLE},
    author = {Jingshu Wang and Qingyuan Zhao},
    year = {2024},
    note = {R package version 0.2.2},
    url = {https://github.com/jingshuw/grapple},
  }