https://cran.r-universe.dev/eigencorehttps://cran.r-universe.dev/api/packages/eigencorehttps://cran.r-universe.dev/eigencore/eigencore.pdfhttps://cran.r-universe.dev/eigencore/doc/manual.htmlhttps://cran.r-universe.dev/eigencore/NEWShttps://cran.r-universe.dev/eigencore/NEWS.txthttps://cran.r-universe.dev/eigencore/citationhttps://cran.r-universe.dev/eigencore/citation.txthttps://cran.r-universe.dev/eigencore/citation.cffhttps://cran.r-universe.dev/eigencore/doc/certificates.Rmdhttps://cran.r-universe.dev/articles/eigencore/certificates.htmlhttps://cran.r-universe.dev/eigencore/doc/generalized-eigenproblems.Rmdhttps://cran.r-universe.dev/articles/eigencore/generalized-eigenproblems.htmlhttps://cran.r-universe.dev/eigencore/doc/eigencore.Rmdhttps://cran.r-universe.dev/articles/eigencore/eigencore.htmlhttps://cran.r-universe.dev/eigencore/doc/sparse-pca.Rmdhttps://cran.r-universe.dev/articles/eigencore/sparse-pca.html