R Observatory: Metrics for diffcp version 0.1.2

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

diffcp

0.1.2Package record

Differentiating Through Cone Programs

0packages depend

2.1Kdownloads / year

86.3%test coverage

13/13flavors OK

Overview

About

Maintained by Balasubramanian NarasimhanCRAN page ↗GitHub ↗Website ↗Issues ↗

A port of the 'python' 'diffcp' package. Computes the derivative of the optimal solution map of a convex cone program, treating the program as an implicit function of its data (constraint matrix, offset, objective coefficients, and optionally a quadratic), mirroring Agrawal et al. (2019) doi:10.48550/arXiv.1904.09043.

Changes in 0.1.2

solve_and_derivative() now reports dA on the sparsity pattern of A **including any explicit zeros**, matching Python diffcp. Covered by tests/testthat/test-explicit-zeros.R, including a finite-difference check that the recovered derivative is correct and not merely present.

From NEWS.md in the release

Install

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

install.packages("diffcp", 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("bnaras/diffcp")

Development version from bnaras/diffcp. 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-diffcp

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

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-diffcp

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

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

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 4.2 min · r-devel-windows-x86_64

Status changes

OK13 OK2026-08-05
NOTE12 OK, 1 NOTE2026-08-01
OK7 OK2026-05-20

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.1.2

READMEYes · 1,294 wordsVignettesYes · 1 · dynamicNEWSYes · 100% structured · mentions 0.1.2Citation fileYes · cites a publicationWebsiteYes · pkgdown

Help pages: 9 (2 internal)includes a package overview page
Examples that run: 100%1 run in a plain check
Exported functions with examples: 13%
Documented parameters: 100%
Return-value docs: 88%
Help pages citing references: 0%

Vignettes (1)

Differentiating Through a Cone Program with diffcp HTML

How these are measured

Downloads

2.1K

CRAN downloads in the past year

Rank #12,161 · ~6/day · ~178/mo

Releases R versions

Daily download trend is not available in this view yet.

26130 days

91390 days

2.1K1 year

Compare downloads with other packages →

Also on112 r2u

How downloads are counted

Repository

bnaras/diffcp ↗Account: bnaras

1Stars

0Forks

0Open issues

0Open PRs

1Releases

33Commits

1Commit identities

33 commits · Last activity 2026-08-22 · 0% stars, 30d

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: not measured
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2026-07-07 · 02026-07-10 · 1

How these are measured

PracticesBeta

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

Checks run against github.com/bnaras/diffcp on 2026-10-21.

Continuous integration (2)

GitHub ActionsR CMD check workflow

The R CMD check workflow runs on Linux, macOS and Windows, and on R-devel

Docs source (3)

pkgdown

GitHub Pages site last deployed 2026-08-23 · The repository has a site deploy workflow

pkgdown site last built 2026-08-23

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

10 external dependencies (excludes base and recommended)

Installing diffcp adds 4 packages (4 with compiled code, 9.8 MB of source tarballs). Heaviest: clarabel 5.7 MB, Rcpp 1.8 MB, RcppEigen 1.7 MB.

Depends (0)

none

Imports (5)

cli clarabelMatrixmethodsRcpp

LinkingTo (2)

Rcpp RcppEigen

Suggests (5)

knitr pkgdown rmarkdown scs testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (6)

Balasubramanian Narasimhan

Author, Maintainer since 0.1.0 (2026)

Author

Author

Author

Author

Author

Releases (3)

Pick two releases to compare their code metrics.

0.1.2Latest
record
2026-05-27 · current release · diff ↗
0.1.1
record
2026-05-27 · diff ↗
0.1.0
record
2026-05-19
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-05-19
Total releases: 3 / 1 yrs
License: Apache License (>= 2)
Download size: 223 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("diffcp")

The package provides a citation file that builds its entry when R runs it. Run citation() to see it.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for diffcp version 0.1.2 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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