https://cran.r-universe.dev/OPLhttps://cran.r-universe.dev/api/packages/OPLhttps://cran.r-universe.dev/OPL/OPL.pdfhttps://cran.r-universe.dev/OPL/doc/manual.htmlhttps://cran.r-universe.dev/OPL/citationhttps://cran.r-universe.dev/OPL/citation.txthttps://cran.r-universe.dev/OPL/citation.cffhttps://cran.r-universe.dev/OPL/doc/make_cate.Rmdhttps://cran.r-universe.dev/articles/OPL/make_cate.htmlhttps://cran.r-universe.dev/OPL/doc/opl_dt_c.Rmdhttps://cran.r-universe.dev/articles/OPL/opl_dt_c.htmlhttps://cran.r-universe.dev/OPL/doc/opl_lc_c.Rmdhttps://cran.r-universe.dev/articles/OPL/opl_lc_c.htmlhttps://cran.r-universe.dev/OPL/doc/opl_tb_c.Rmdhttps://cran.r-universe.dev/articles/OPL/opl_tb_c.htmlhttps://cran.r-universe.dev/OPL/doc/overlapping.Rmdhttps://cran.r-universe.dev/articles/OPL/overlapping.html