To cite package ‘ggbiplot’ in publications use:

  Vu VQ (2011). _ggbiplot: A ggplot2 based biplot_. R package version
  0.55, <https://github.com/vqv/ggbiplot>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {ggbiplot: A ggplot2 based biplot},
    author = {Vincent Q. Vu},
    year = {2011},
    note = {R package version 0.55},
    url = {https://github.com/vqv/ggbiplot},
  }

ATTENTION: This citation information has been auto-generated from the
package DESCRIPTION file and may need manual editing, see
‘help("citation")’.