https://trackage.r-universe.dev/triphttps://trackage.r-universe.dev/api/packages/triphttps://trackage.r-universe.dev/trip/trip.pdfhttps://trackage.r-universe.dev/trip/doc/manual.htmlhttps://trackage.r-universe.dev/trip/NEWShttps://trackage.r-universe.dev/trip/NEWS.txthttps://trackage.r-universe.dev/trip/citationhttps://trackage.r-universe.dev/trip/citation.txthttps://trackage.r-universe.dev/trip/citation.cffhttps://trackage.r-universe.dev/trip/doc/trip.Rmdhttps://trackage.r-universe.dev/articles/trip/trip.htmlhttps://trackage.r-universe.dev/trip/doc/trip-rationale.Rmdhttps://trackage.r-universe.dev/articles/trip/trip-rationale.html