piqp

0.6.2

R Interface to Proximal Interior Point Quadratic Programming Solver

1packages depend

3.5Kdownloads / year

63.5%test coverage

13/13checks pass

Overview

About

Maintained by Balasubramanian NarasimhanFirst published 2023-08-142 releasesCRAN page ↗GitHub ↗

An embedded proximal interior point quadratic programming solver, which can solve dense and sparse quadratic programs, described in Schwan, Jiang, Kuhn, and Jones (2023) doi:10.48550/arXiv.2304.00290. Combining an infeasible interior point method with the proximal method of multipliers, the algorithm can handle ill-conditioned convex quadratic programming problems without the need for linear independence of the constraints. The solver is written in header only 'C++ 14' leveraging the 'Eigen' library for vectorized linear algebra. For small dense problems, vectorized instructions and cache locality can be exploited more efficiently. Allocation free problem updates and re-solves are also provided.

Install

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

install.packages("piqp", 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("PREDICT-EPFL/piqp-r")

Development version from PREDICT-EPFL/piqp-r. 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-piqp

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-piqp

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-piqp

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

Health

CRAN checks

13OK

Slowest check: 3.8 min · r-oldrel-macos-x86_64

Code health

Yes

Tests · ratio 0.01

63.5%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-06-09
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-06-08
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-04-22
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
11 OK · 2 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE

Show 1 earlier snapshots

NOTE2026-03-10
12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 46 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 88%
References docs: 9%

Downloads

3.5K

CRAN downloads in the past year

Rank #8,663 · ~10/day · ~293/mo

Releases R versions

Daily download trend is not available in this view yet.

35030 days

1.2K90 days

3.5K1 year

Compare downloads with other packages →

Also on425 r2u35 autocran29 c2d4u

Repository

GitHub ↗ predict-epfl/piqp-r

1Stars

0Forks

0Open issues

0Open PRs

1Releases

32Commits

2Contributors

32 commits · Last activity 2026-02-18 · 0% stars, 30d

Stars over time

2026-02-28 · 12026-07-07 · 1

Repository practices

Upstream repositoryBeta

2 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/predict-epfl/piqp-r on 2026-07-30.

Continuous integration (1)

GitHub Actions

Git structural (1)

Submodules

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

8 external dependencies (excludes base and recommended)

Depends (0)

none

Imports (4)

MatrixmethodsRcpp S7

LinkingTo (2)

Rcpp RcppEigen

Suggests (4)

knitr rmarkdown slam tinytest

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

qfa

Code & Tests

People & History

People (5)

Maintainer (1)

Balasubramanian Narasimhan

Author, Maintainer

Authors (5)

Balasubramanian Narasimhan

Author, Maintainer

Author

Author

Author

Author, Copyright holder

Roland Schwan

Author, Copyright holder

Package Timeline

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

R
R 4.6.0 released · 2026-04-24
0.6.2Latest
2026-02-18 · current release · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
0.2.2
2023-08-14
R
R 4.3.0 released · 2023-04-21

Package metadata

First published: 2023-08-14
Total releases: 2 / 3 yrs
License: BSD_2_clause + file LICENSE OSI
Download size: 153 KB
Installed size: not tracked yet
With dependencies: not tracked yet

Appears in task views

Optimization and Mathematical Programming

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