https://brian-j-smith.r-universe.dev/rampshttps://brian-j-smith.r-universe.dev/api/packages/rampshttps://brian-j-smith.r-universe.dev/ramps/ramps.pdfhttps://brian-j-smith.r-universe.dev/ramps/doc/manual.htmlhttps://brian-j-smith.r-universe.dev/ramps/citationhttps://brian-j-smith.r-universe.dev/ramps/citation.txthttps://brian-j-smith.r-universe.dev/ramps/citation.cff