Package: riemtan
Title: Riemannian Metrics for Symmetric Positive Definite Matrices
Version: 0.2.5
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, <doi:10.1007/s11263-005-3222-z>), Log-Euclidean (<doi:10.1002/mrm.20965>), Euclidean, Log-Cholesky (<doi:10.1137/18M1221084>), and Bures-Wasserstein metrics (<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: 7.3.3
LinkingTo: Rcpp, RcppEigen
Depends: R (>= 4.3.0)
Imports: arrow, future, furrr, jsonlite, Matrix, methods, R6, purrr,
        MASS, matrixStats, Rcpp (>= 1.0.0)
Suggests: progressr, 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: yes
Packaged: 2025-11-10 20:46:26 UTC; new user
Author: Nicolas Escobar [aut, cre] (ORCID:
    <https://orcid.org/0009-0006-0800-5692>),
  Jaroslaw Harezlak [ths]
Repository: CRAN
Date/Publication: 2025-11-10 21:20:02 UTC
Built: R 4.6.0; aarch64-apple-darwin23; 2026-03-27 15:00:38 UTC; unix
Archs: riemtan.so.dSYM
