Package: matsketch
Title: Randomized Matrix Computations from Few Entries and Products
Version: 0.1.0
Authors@R: 
    person("Muhammad", "Farooqi", email = "mqfarooqi@gmail.com",
           role = c("aut", "cre"),
           comment = c(ORCID = "0000-0003-4918-9791"))
Description: Implements recent randomized algorithms that answer
        questions about a large positive-semidefinite matrix while
        touching only a small part of it. Randomly pivoted Cholesky
        builds a low-rank approximation from a few rows of a kernel
        matrix (Chen, Epperly, Tropp and Webber (2025)
        <doi:10.1002/cpa.22234>), with an accelerated variant based on
        rejection sampling (Epperly, Tropp and Webber (2025)
        <doi:10.1137/24m1699048>). The XTrace, XNysTrace and XDiag
        estimators recover the trace and diagonal of a matrix that is
        available only through matrix-vector products (Epperly, Tropp
        and Webber (2024) <doi:10.1137/23m1548323>), alongside the
        Hutch++ estimator of Meyer, Musco, Musco and Woodruff (2021)
        <doi:10.1137/1.9781611976496.16>. Randomized Nystrom
        preconditioning speeds up the conjugate gradient method for
        regularized linear systems (Frangella, Tropp and Udell (2023)
        <doi:10.1137/21m1466244>). These pieces are combined to fit
        restricted maximum likelihood variance-component models on
        genomic relationship matrices without forming or factorizing
        the covariance matrix.
License: MIT + file LICENSE
Encoding: UTF-8
Language: en-GB
Depends: R (>= 4.1.0)
Imports: graphics, grDevices, stats
Suggests: knitr, Matrix, rmarkdown, testthat (>= 3.0.0)
VignetteBuilder: knitr
Config/testthat/edition: 3
URL: https://github.com/mqfarooqi1/matsketch,
        https://mqfarooqi1.github.io/matsketch/
BugReports: https://github.com/mqfarooqi1/matsketch/issues
Config/roxygen2/version: 8.1.0
NeedsCompilation: no
Packaged: 2026-09-21 21:19:33 UTC; root
Author: Muhammad Farooqi [aut, cre] (ORCID:
        <https://orcid.org/0000-0003-4918-9791>)
Maintainer: Muhammad Farooqi <mqfarooqi@gmail.com>
Repository: https://cran.r-universe.dev
Date/Publication: 2026-09-21 19:36:04 UTC
RemoteUrl: https://github.com/cran/matsketch
RemoteRef: HEAD
RemoteSha: 330ad41b699ee992570a88531e4ad45a5e0fa84b