https://rmaster1.r-universe.dev/nphhttps://rmaster1.r-universe.dev/api/packages/nphhttps://rmaster1.r-universe.dev/nph/nph.pdfhttps://rmaster1.r-universe.dev/nph/doc/manual.htmlhttps://rmaster1.r-universe.dev/nph/citationhttps://rmaster1.r-universe.dev/nph/citation.txthttps://rmaster1.r-universe.dev/nph/citation.cffhttps://rmaster1.r-universe.dev/nph/doc/examples.Rmdhttps://rmaster1.r-universe.dev/articles/nph/examples.htmlhttps://rmaster1.r-universe.dev/nph/doc/usage.Rmdhttps://rmaster1.r-universe.dev/articles/nph/usage.html