Package: orthoDr Type: Package Title: Semi-Parametric Dimension Reduction Models Using Orthogonality Constrained Optimization Version: 2.0.0 Date: 2026-05-23 Authors@R: c( person("Ruilin", "Zhao", role = "aut"), person("Wenzhuo", "Zhou", role = "aut"), person("Ruoqing", "Zhu", email = "teazrq@gmail.com", role = c("aut", "cre", "cph"), comment = c(ORCID = "0000-0002-0753-5716")), person("Jiyang", "Zhang", role = "ctb"), person("Peng", "Xu", role = "ctb") ) Description: Utilize an orthogonality constrained optimization algorithm of Wen & Yin (2013) to solve a variety of dimension reduction problems in the semiparametric framework, such as Ma & Zhu (2012) , Ma & Zhu (2013) , Sun, Zhu, Wang & Zeng (2017) and Zhou & Zhu (2018+) . It also serves as a general purpose optimization solver for problems with orthogonality constraints. Parallel computing for approximating the gradient is enabled through `OpenMP'. License: GPL (>= 2) Encoding: UTF-8 LazyData: true Roxygen: list(markdown = TRUE) NeedsCompilation: yes Imports: Rcpp (>= 1.0.0), survival, dr, pracma, plot3D, rgl, MASS Suggests: testthat (>= 3.0.0) Config/testthat/edition: 3 LinkingTo: Rcpp, RcppArmadillo URL: https://github.com/rqzhu-aide/orthoDr BugReports: https://github.com/rqzhu-aide/orthoDr/issues RoxygenNote: 8.0.0 Config/pak/sysreqs: cmake libfreetype6-dev libglu1-mesa-dev make texlive libpng-dev libuv1-dev libgl1-mesa-dev zlib1g-dev Repository: https://teazrq.r-universe.dev Date/Publication: 2026-06-01 13:16:21 UTC RemoteUrl: https://github.com/teazrq/orthodr RemoteRef: HEAD RemoteSha: 16fc0f11015f62aa9111ce237269ee2a48fed587 Packaged: 2026-06-01 16:59:08 UTC; root Author: Ruilin Zhao [aut], Wenzhuo Zhou [aut], Ruoqing Zhu [aut, cre, cph] (ORCID: ), Jiyang Zhang [ctb], Peng Xu [ctb] Maintainer: Ruoqing Zhu Depends: R (>= 3.5.0)