polyMatrix

0.9.16

Infrastructure for Manipulation Polynomial Matrices

0packages depend

3.3Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Nikolai RyzhkovFirst published 2020-01-165 releasesCRAN page ↗GitHub ↗

Implementation of class "polyMatrix" for storing a matrix of polynomials and implements basic matrix operations; including a determinant and characteristic polynomial. It is based on the package 'polynom' and uses a lot of its methods to implement matrix operations. This package includes 3 methods of triangularization of polynomial matrices: Extended Euclidean algorithm which is most classical but numerically unstable; Sylvester algorithm based on LQ decomposition; Interpolation algorithm is based on LQ decomposition and Newton interpolation. Both methods are described in D. Henrion & M. Sebek, Reliable numerical methods for polynomial matrix triangularization, IEEE Transactions on Automatic Control (Volume 44, Issue 3, Mar 1999, Pages 497-508) doi:10.1109/9.751344 and in Salah Labhalla, Henri Lombardi & Roger Marlin, Algorithmes de calcule de la reduction de Hermite d'une matrice a coefficients polynomeaux, Theoretical Computer Science (Volume 161, Issue 1-2, July 1996, Pages 69-92) doi:10.1016/0304-3975(95)00090-9.

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("polyMatrix", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("namezys/polymatrix")

Development version from namezys/polymatrix. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-polymatrix

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-polyMatrix

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-polyMatrix

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 1.5 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.58

not tracked

Coverage

83%

Documentation · exports

None

Vignettes

Yes

README

Dependencies · direct

Check history

OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Downloads

3.3K

CRAN downloads in the past year

Rank #12,784 · ~9/day · ~272/mo

Releases R versions

Daily download trend is not available in this view yet.

32430 days

83690 days

3.3K1 year

Compare downloads with other packages →

Also on104 r2u18 autocran41 c2d4u

Repository

GitHub ↗ namezys/polymatrix

1Stars

0Forks

0Open issues

1Open PRs

0Releases

Dependencies

Declared dependencies

3 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.0

Imports (3)

methodspolynomMatrix

LinkingTo (0)

none

Suggests (2)

testthat withr

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

Code Composition

R 3,910 (73%)Rd 1,468 (27%)

Code characteristics

Object systems

S4 class2S4 generic15S4 method71

Cyclomatic complexity: 3.0 median / 28 max
Test cases: 88 / 0.58 per code line
Documented parameters: 90%

Test coverage

Line coverage

–

Expression

–

Tests / Examples

–

Functions

65 15 exported

Complexity

4.8 avg / 28 max

Call network

65 nodes / 73 edges

Test coverage has not been measured for this package yet; nodes fall back to a neutral fill.

Call graph

Open call graph →

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Lowest coverage

Per-function coverage is not measured for this package yet.

People & History

People (5)

Maintainer (1)

Nikolai Ryzhkov

Author, Maintainer

Authors (4)

Author, Maintainer

Author

Author

Author

Contributors (1)

Ulas Onat Alakent

Contributor

Release timeline

5 releases. Pick two to compare their code metrics. R releases are shown for context.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
0.9.16Latest
2021-07-18 · current release · diff ↗
0.9.11
2021-07-11 · diff ↗
R
R 4.1.0 released · 2021-05-18
0.3.1
2020-06-04 · diff ↗
R
R 4.0.0 released · 2020-04-24
0.2.5
2020-02-03 · diff ↗
0.2.4
2020-01-16
R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2020-01-16
Total releases: 5 / 6 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.0
Download size: 40 KB
Installed size: not tracked yet
With dependencies: not tracked yet