qr	qr
qrchol	qrchol
qrdowndate	qrdowndate
qrls	qrls
qrmls	qrmls
qrmridge	qrmridge
qrmridge_cv	qrmridge_cv
qrridge	qrridge
qrridge_cv	qrridge_cv
qrsolve	qrsolve
qrupdate	qrupdate
rchol	rchol
rdowndate	rdowndate
rupdate	rupdate
