Flexible Integration of Single-Cell RNA-Seq Data // Provides functions for the flexible integration of heterogeneous scRNA- seq datasets across multiple tissue types, platforms, and experimental batches. Implements the method described in Ming (2022) doi:10.1093/bib/bbac167. The package incorporates modified 'C++' source code from the 'flashpca' library (Abraham, 2014-2016 https://github.com/gabraham/flashpca) for efficient principal component analysis, and the 'Spectra' library (Qiu, 2016-2025) for large-scale eigenvalue and singular value decomposition; see 'inst/COPYRIGHTS' for details on third-party code.