https://rdatatable.r-universe.dev/data.tablehttps://rdatatable.r-universe.dev/api/packages/data.tablehttps://rdatatable.r-universe.dev/data.table/data.table.pdfhttps://rdatatable.r-universe.dev/data.table/doc/manual.htmlhttps://rdatatable.r-universe.dev/data.table/NEWShttps://rdatatable.r-universe.dev/data.table/NEWS.txthttps://rdatatable.r-universe.dev/data.table/citationhttps://rdatatable.r-universe.dev/data.table/citation.txthttps://rdatatable.r-universe.dev/data.table/citation.cff