Package: SNPRelate Type: Package Title: Parallel Computing Toolset for Relatedness and Principal Component Analysis of SNP Data Version: 1.47.0 Date: 2026-04-13 Depends: R (>= 2.15), gdsfmt (>= 1.8.3) LinkingTo: gdsfmt Imports: methods, RhpcBLASctl Suggests: parallel, Matrix, RUnit, knitr, markdown, rmarkdown, MASS, BiocGenerics Enhances: SeqArray (>= 1.12.0) Authors@R: c(person("Xiuwen", "Zheng", role=c("aut", "cre", "cph"), email="zhengx@u.washington.edu", comment=c(ORCID="0000-0002-1390-0708")), person("Stephanie", "Gogarten", role="ctb", email="sdmorris@uw.edu"), person("Cathy", "Laurie", role="ctb", email="cclaurie@uw.edu"), person("Bruce", "Weir", role=c("ctb", "ths"), email="bsweir@uw.edu", comment=c(ORCID="0000-0002-4883-1247"))) Description: Genome-wide association studies (GWAS) are widely used to investigate the genetic basis of diseases and traits, but they pose many computational challenges. We developed an R package SNPRelate to provide a binary format for single-nucleotide polymorphism (SNP) data in GWAS utilizing CoreArray Genomic Data Structure (GDS) data files. The GDS format offers the efficient operations specifically designed for integers with two bits, since a SNP could occupy only two bits. SNPRelate is also designed to accelerate two key computations on SNP data using parallel computing for multi-core symmetric multiprocessing computer architectures: Principal Component Analysis (PCA) and relatedness analysis using Identity-By-Descent measures. The SNP GDS format is also used by the GWASTools package with the support of S4 classes and generic functions. The extended GDS format is implemented in the SeqArray package to support the storage of single nucleotide variations (SNVs), insertion/deletion polymorphism (indel) and structural variation calls in whole-genome and whole-exome variant data. License: GPL-3 VignetteBuilder: knitr LazyData: true URL: https://github.com/zhengxwen/SNPRelate BugReports: https://github.com/zhengxwen/SNPRelate/issues biocViews: Infrastructure, Genetics, StatisticalMethod, PrincipalComponent Repository: https://bioc.r-universe.dev Date/Publication: 2026-04-28 12:39:41 UTC RemoteUrl: https://github.com/bioc/SNPRelate RemoteRef: HEAD RemoteSha: 9dd380bbcbc3385aa9ab56a91b33302c0480b2c5 NeedsCompilation: yes Packaged: 2026-06-23 15:20:45 UTC; root Author: Xiuwen Zheng [aut, cre, cph] (ORCID: ), Stephanie Gogarten [ctb], Cathy Laurie [ctb], Bruce Weir [ctb, ths] (ORCID: ) Maintainer: Xiuwen Zheng