diffcp

0.1.1

Differentiating Through Cone Programs

0packages depend

1.2Kdownloads / year

86.2%test coverage

13/13checks pass

Overview

About

Maintained by Balasubramanian NarasimhanFirst published 2026-05-192 releasesCRAN page ↗GitHub ↗

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.

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.

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

Slowest check: 3.9 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 1.46

86.2%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-05-20
7 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 1,294 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: 100%
Return-value docs: 88%
References docs: 0%

Downloads

1.2K

CRAN downloads in the past year

Rank #9,528 · ~3/day · ~97/mo

Releases R versions

Daily download trend is not available in this view yet.

37230 days

1.2K90 days

1.2K1 year

Compare downloads with other packages →

Also on48 r2u

Repository

GitHub ↗ bnaras/diffcp

1Stars

0Forks

0Open issues

0Open PRs

0Releases

31Commits

1Contributors

31 commits · Last activity 2026-05-26

Stars over time

2026-07-07 · 02026-07-10 · 1

Repository practices

Upstream repositoryBeta

1 development-tooling and community-health practice detected across 1 family in the upstream repository

Checks run against github.com/bnaras/diffcp on 2026-07-19.

Continuous integration (1)

GitHub Actions

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

Dependencies

Declared dependencies

10 external dependencies (excludes base and recommended)

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.

Code & Tests

Code Composition

R 2,600 (54%)C++ 1,228 (26%)Vignettes 480 (10%)Rd 316 (7%)C 167 (3%)

Code characteristics

Cyclomatic complexity: 1.0 median / 49 max
Test cases: 60 / 1.46 per code line
System requirements: 1 external

Test coverage

Line coverage

86%

Expression

88.7%

Tests / Examples

86.2% / 0% ex

Functions

104 7 exported

Complexity

3.9 avg / 49 max

Call network

104 nodes / 102 edges

Call graph

Open call graph →

Loading call graph…

Lowest coverage

104 functions

Function	Cyclo	Coverage
upstream_info exp	3	0%
.dproj_nonneg	1	0%
.dproj_soc_one	4	0%
.dproj_zero	2	0%
.dprojection	12	0%
.proj_soc	2	0%

People & History

People (6)

Maintainer (1)

Balasubramanian Narasimhan

Author, Maintainer

Authors (6)

Balasubramanian Narasimhan

Author, Maintainer

Author

Author

Author

Author

Author

Package Timeline

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

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

Package metadata

First published: 2026-05-19
Total releases: 2 / 1 yrs
License: Apache License (>= 2)
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet

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