To cite package ‘panelTool’ in publications use:

  Tong X (2026). _panelTool: Build Regularly Spaced Panels from
  Irregularly Spaced Longitudinal Data_. R package version 0.1.0,
  <https://github.com/xiaoran831213/paneltool>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {panelTool: Build Regularly Spaced Panels from Irregularly Spaced
Longitudinal Data},
    author = {Xiaoran Tong},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://github.com/xiaoran831213/paneltool},
  }