To cite package ‘pPCA’ in publications use:

  Raja S, Dutta S (2024). _pPCA: Partial Principal Component Analysis
  of Partitioned Large Sparse Matrices_. R package version 1.1,
  <https://github.com/srika1919/ppca>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {pPCA: Partial Principal Component Analysis of Partitioned Large Sparse
Matrices},
    author = {Srika Raja and Somak Dutta},
    year = {2024},
    note = {R package version 1.1},
    url = {https://github.com/srika1919/ppca},
  }