https://danieleweeks.r-universe.dev/nplplothttps://danieleweeks.r-universe.dev/api/packages/nplplothttps://danieleweeks.r-universe.dev/nplplot/nplplot.pdfhttps://danieleweeks.r-universe.dev/nplplot/doc/manual.htmlhttps://danieleweeks.r-universe.dev/nplplot/citationhttps://danieleweeks.r-universe.dev/nplplot/citation.txthttps://danieleweeks.r-universe.dev/nplplot/citation.cff