https://stanfill.r-universe.dev/rotationshttps://stanfill.r-universe.dev/api/packages/rotationshttps://stanfill.r-universe.dev/rotations/rotations.pdfhttps://stanfill.r-universe.dev/rotations/doc/manual.htmlhttps://stanfill.r-universe.dev/rotations/NEWShttps://stanfill.r-universe.dev/rotations/NEWS.txthttps://stanfill.r-universe.dev/rotations/citationhttps://stanfill.r-universe.dev/rotations/citation.txthttps://stanfill.r-universe.dev/rotations/citation.cffhttps://stanfill.r-universe.dev/rotations/doc/rotations-intro.Rnwhttps://stanfill.r-universe.dev/articles/rotations/rotations-intro.pdf