https://tibshirani.r-universe.dev/pcLassohttps://tibshirani.r-universe.dev/api/packages/pcLassohttps://tibshirani.r-universe.dev/pcLasso/pcLasso.pdfhttps://tibshirani.r-universe.dev/pcLasso/doc/manual.htmlhttps://tibshirani.r-universe.dev/pcLasso/citationhttps://tibshirani.r-universe.dev/pcLasso/citation.txthttps://tibshirani.r-universe.dev/pcLasso/citation.cffhttps://tibshirani.r-universe.dev/pcLasso/doc/pcLasso.Rmdhttps://tibshirani.r-universe.dev/articles/pcLasso/pcLasso.html