https://cran.r-universe.dev/ecolRxChttps://cran.r-universe.dev/api/packages/ecolRxChttps://cran.r-universe.dev/ecolRxC/ecolRxC.pdfhttps://cran.r-universe.dev/ecolRxC/doc/manual.htmlhttps://cran.r-universe.dev/ecolRxC/NEWShttps://cran.r-universe.dev/ecolRxC/NEWS.txthttps://cran.r-universe.dev/ecolRxC/citationhttps://cran.r-universe.dev/ecolRxC/citation.txthttps://cran.r-universe.dev/ecolRxC/citation.cff