https://jasenfinch.r-universe.dev/pdihttps://jasenfinch.r-universe.dev/api/packages/pdihttps://jasenfinch.r-universe.dev/pdi/pdi.pdfhttps://jasenfinch.r-universe.dev/pdi/doc/manual.htmlhttps://jasenfinch.r-universe.dev/pdi/NEWShttps://jasenfinch.r-universe.dev/pdi/NEWS.txthttps://jasenfinch.r-universe.dev/pdi/citationhttps://jasenfinch.r-universe.dev/pdi/citation.txthttps://jasenfinch.r-universe.dev/pdi/citation.cffhttps://jasenfinch.r-universe.dev/pdi/doc/pdi-example.Rmdhttps://jasenfinch.r-universe.dev/articles/pdi/pdi-example.html