The COR for Optimal Subset Selection in Distributed Estimation R package COR version 0.2.0 An algorithm of optimal subset selection, related to Covariance matrices, observation matrices and Response vectors (COR) to select the optimal subsets in distributed estimation. The philosophy of the package is described in Guo G. (2024) <doi:10.1007/s11222-024-10471-z>. Software Depends: R (>= 3.5.0) Imports: stats Guangbao Guo <ggb11111111@163.com> Comprehensive R Archive Network (CRAN) Guangbao Guo [aut, cre] (ORCID: <https://orcid.org/0000-0002-4115-6218>), Haoyue Song [aut], Lixing Zhu [aut] MIT + file LICENSE (https://CRAN.R-project.org/package=COR/LICENSE) 2024-12-16 application/tgz https://CRAN.R-project.org/package=COR doi:10.32614/CRAN.package.COR