https://valentint.r-universe.dev/rdahttps://valentint.r-universe.dev/api/packages/rdahttps://valentint.r-universe.dev/rda/rda.pdfhttps://valentint.r-universe.dev/rda/doc/manual.htmlhttps://valentint.r-universe.dev/rda/citationhttps://valentint.r-universe.dev/rda/citation.txthttps://valentint.r-universe.dev/rda/citation.cff