Package: orthoDr
Type: Package
Title: Semi-Parametric Dimension Reduction Models Using Orthogonality
        Constrained Optimization
Version: 0.6.8
Authors@R: c(
              person("Ruilin", "Zhao",
                     email = "rzhao15@seas.upenn.edu", 
                     role = c("aut", "cph")),
              person("Ruoqing", "Zhu",
                     email = "teazrq@gmail.com", 
                     role = c("aut", "cre", "cph"),
                     comment = c(ORCID = "0000-0002-0753-5716")),
              person("Jiyang", "Zhang",
                     email = "jiyangz2@illinois.edu", 
                     role = c("aut", "cph")),
              person("Wenzhuo", "Zhou",
                     email = "wenzhuo3@illinois.edu", 
                     role = c("aut", "cph")),
              person("Peng", "Xu",
                     email = "px2132@columbia.edu", 
                     role = c("aut", "cph")),
              person("James Joseph", "Balamuta",
                     email = "balamut2@illinois.edu", 
                     role = c("ctb"), 
                     comment = c(ORCID = "0000-0003-2826-8458"))
            )
Description: Utilize an orthogonality constrained optimization
        algorithm of Wen & Yin (2013) <DOI:10.1007/s10107-012-0584-1>
        to solve a variety of dimension reduction problems in the
        semiparametric framework, such as Ma & Zhu (2012)
        <DOI:10.1080/01621459.2011.646925>, Ma & Zhu (2013)
        <DOI:10.1214/12-AOS1072>, Sun, Zhu, Wang & Zeng (2019)
        <DOI:10.1093/biomet/asy064> and Zhou, Zhu & Zeng (2021)
        <DOI:10.1093/biomet/asaa087>. The package also implements some
        existing dimension reduction methods such as hMave by Xia,
        Zhang, & Xu (2010) <DOI:10.1198/jasa.2009.tm09372> and partial
        SAVE by Feng, Wen & Zhu (2013)
        <DOI:10.1080/01621459.2012.746065>. It also serves as a general
        purpose optimization solver for problems with orthogonality
        constraints, i.e., in Stiefel manifold. Parallel computing for
        approximating the gradient is enabled through 'OpenMP'.
License: GPL (>= 2)
Encoding: UTF-8
LazyData: TRUE
Imports: Rcpp (>= 1.0.9), survival, dr, pracma, plot3D, rgl, MASS
LinkingTo: Rcpp, RcppArmadillo
URL: https://github.com/teazrq/orthoDr
BugReports: https://github.com/teazrq/orthoDr/issues
RoxygenNote: 7.3.1
NeedsCompilation: yes
Packaged: 2026-10-28 11:20:52 UTC; root
Author: Ruilin Zhao [aut, cph], Ruoqing Zhu [aut, cre, cph]
        (<https://orcid.org/0000-0002-0753-5716>), Jiyang Zhang [aut,
        cph], Wenzhuo Zhou [aut, cph], Peng Xu [aut, cph], James Joseph
        Balamuta [ctb] (<https://orcid.org/0000-0003-2826-8458>)
Maintainer: Ruoqing Zhu <teazrq@gmail.com>
Repository: https://cran.r-universe.dev
Date/Publication: 2024-03-14 02:30:47 UTC
RemoteUrl: https://github.com/cran/orthoDr
RemoteRef: HEAD
RemoteSha: bb7629d3b5a2ed3ff2b89cce683992b998644169