To cite package ‘SOPC’ in publications use:

Guo G, Wei C, Qian G (2023). SOPC: The Sparse Online Principal Component Estimation Algorithm. R package version 0.1.0, https://CRAN.R-project.org/package=SOPC.

Corresponding BibTeX entry:

  @Manual{,
    title = {SOPC: The Sparse Online Principal Component Estimation
      Algorithm},
    author = {Guangbao Guo and Chunjie Wei and Guoqi Qian},
    year = {2023},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=SOPC},
  }