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Fast implementations to compute the genetic covariance matrix, the Jaccard similarity matrix, the s-matrix (the weighted Jaccard similarity matrix), and the (classic or robust) genomic relationship matrix of a (dense or sparse) input matrix (see Hahn, Lutz, Hecker, Prokopenko, Cho, Silverman, Weiss, and Lange (2020) <doi:10.1002/gepi.22356>). Full support for sparse matrices from the R-package 'Matrix'. Additionally, an implementation of the power method (von Mises iteration) to compute the largest eigenvector of a matrix is included, a function to perform an automated full run of global and local correlations in population stratification data, a function to compute sliding windows, and a function to invert minor alleles and to select those variants/loci exceeding a minimal cutoff value. New functionality in locStra allows one to extract the k leading eigenvectors of the genetic covariance matrix, Jaccard similarity matrix, s-matrix, and genomic relationship matrix via fast PCA without actually computing the similarity matrices. The fast PCA to compute the k leading eigenvectors can now also be run directly from 'bed'+'bim'+'fam' files.
| Version: | 1.9 |
| Imports: | Rcpp (≥ 0.12.13), Rdpack, Matrix, RSpectra, bigsnpr |
| LinkingTo: | Rcpp, RcppEigen |
| Published: | 2022-04-12 |
| Author: | Georg Hahn [aut,cre], Sharon M. Lutz [ctb], Christoph Lange [ctb] |
| Maintainer: | Georg Hahn <ghahn at hsph.harvard.edu> |
| License: | GPL-2 | GPL-3 [expanded from: GPL (≥ 2)] |
| NeedsCompilation: | yes |
| CRAN checks: | locStra results |
| Reference manual: | locStra.pdf |
| Package source: | locStra_1.9.tar.gz |
| Windows binaries: | r-devel: locStra_1.9.zip, r-release: locStra_1.9.zip, r-oldrel: locStra_1.9.zip |
| macOS binaries: | r-release (arm64): locStra_1.9.tgz, r-oldrel (arm64): locStra_1.9.tgz, r-release (x86_64): locStra_1.9.tgz, r-oldrel (x86_64): locStra_1.9.tgz |
| Old sources: | locStra archive |
| Reverse suggests: | scPipe |
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