https://rubenfcasal.r-universe.dev/npsphttps://rubenfcasal.r-universe.dev/api/packages/npsphttps://rubenfcasal.r-universe.dev/npsp/npsp.pdfhttps://rubenfcasal.r-universe.dev/npsp/doc/manual.htmlhttps://rubenfcasal.r-universe.dev/npsp/NEWShttps://rubenfcasal.r-universe.dev/npsp/NEWS.txthttps://rubenfcasal.r-universe.dev/npsp/citationhttps://rubenfcasal.r-universe.dev/npsp/citation.txthttps://rubenfcasal.r-universe.dev/npsp/citation.cffhttps://rubenfcasal.r-universe.dev/npsp/doc/npsp.Rmdhttps://rubenfcasal.r-universe.dev/articles/npsp/npsp.htmlhttps://rubenfcasal.r-universe.dev/npsp/doc/krigstat.Rmdhttps://rubenfcasal.r-universe.dev/articles/npsp/krigstat.html