Package: riemtan
Title: Riemannian Metrics for Symmetric Positive Definite Matrices
Version: 0.1.0
Authors@R: c(
    person(
        given = "Nicolas",
        family = "Escobar",
        role = c("aut", "cre"),
        email = "nescoba@iu.edu",
        comment = c(ORCID = "0009-0006-0800-5692")
    ),
    person(
        given = "Jaroslaw",
        family = "Harezlak",
        role = "ths"
    ))
Description: Implements various Riemannian metrics for symmetric positive definite matrices, including AIRM (Affine Invariant Riemannian Metric, see Pennec, Fillard, and Ayache (2006) <doi:10.1007/s11263-005-3222-z>), Log-Euclidean (see Arsigny, Fillard, Pennec, and Ayache (2006) <doi:10.1002/mrm.20965>), Euclidean, Log-Cholesky (see Lin (2019) <doi:10.1137/18M1221084>), and Bures-Wasserstein metrics (see Bhatia, Jain, and Lim (2019) <doi:10.1016/j.exmath.2018.01.002>). Provides functions for computing logarithmic and exponential maps, vectorization, and statistical operations on the manifold of positive definite matrices.
License: MIT + file LICENSE
Encoding: UTF-8
LazyData: true
RoxygenNote: 7.3.2
Depends: R (>= 4.3.0), Matrix
Imports: methods, expm, R6, purrr, MASS, furrr
Suggests: testthat (>= 3.0.0), knitr, rmarkdown
VignetteBuilder: knitr
URL: https://nicoesve.github.io/riemtan/
BugReports: https://github.com/nicoesve/riemtan/issues
Config/testthat/edition: 3
Maintainer: Nicolas Escobar <nescoba@iu.edu>
NeedsCompilation: no
Packaged: 2025-04-19 21:30:24 UTC; nicolasescobar
Author: Nicolas Escobar [aut, cre] (<https://orcid.org/0009-0006-0800-5692>),
  Jaroslaw Harezlak [ths]
Repository: CRAN
Date/Publication: 2025-04-23 10:10:02 UTC
Built: R 4.6.0; ; 2025-10-14 02:27:12 UTC; windows
