https://ngmarchant.r-universe.dev/comparatorhttps://ngmarchant.r-universe.dev/api/packages/comparatorhttps://ngmarchant.r-universe.dev/comparator/comparator.pdfhttps://ngmarchant.r-universe.dev/comparator/doc/manual.htmlhttps://ngmarchant.r-universe.dev/comparator/NEWShttps://ngmarchant.r-universe.dev/comparator/NEWS.txthttps://ngmarchant.r-universe.dev/comparator/citationhttps://ngmarchant.r-universe.dev/comparator/citation.txthttps://ngmarchant.r-universe.dev/comparator/citation.cff