To cite package ‘backtestGraphics’ in publications use:

  Song Y, Zhu Z, Kane D, Lu Z, Tibrewal K, Zhang F (2015).
  _backtestGraphics: Interactive Graphics for Portfolio Data_. R
  package version 0.1.8,
  <https://github.com/yanrong-stacy-song/backtestgraphics>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {backtestGraphics: Interactive Graphics for Portfolio Data},
    author = {Yanrong Song and Zijie Zhu and David Kane and Ziqi Lu and Karan Tibrewal and Fan Zhang},
    year = {2015},
    note = {R package version 0.1.8},
    url = {https://github.com/yanrong-stacy-song/backtestgraphics},
  }