pc

0.2

Pattern Causality Analysis

1packages depend

1.8Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Wenbo LyuFirst published 2026-03-302 releasesCRAN page ↗GitHub ↗

Infer causation from observational data through pattern causality analysis (PC), with original algorithm for time series data from Stavroglou et al. (2020) doi:10.1073/pnas.1918269117, as well as methodological extensions for spatial cross-sectional data introduced by Zhang & Wang (2025) doi:10.1080/13658816.2025.2581207, together with a systematic description proposed in Lyu et al. (2026) doi:10.1016/j.compenvurbsys.2026.102435.

Install

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

install.packages("pc", 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("stscl/pc")

Development version from stscl/pc. 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-pc

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-pc

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-pc

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

Health

CRAN checks

13OK

Slowest check: 6.7 min · r-devel-linux-x86_64-fedora-clang

Code health

None

Tests · ratio 0.00

not tracked

Coverage

Dependencies · direct

Check history

OK2026-04-25
12 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-04-22
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
ERROR2026-04-18
11 OK · 1 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE
NOTE2026-03-31
6 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 256 wordsVignettesNopkgdown siteNoNEWSYes · 100% structuredCode of conductNoContributing guideNo

Examples that run: 100%
Documented parameters: not tracked
Return-value docs: not tracked
References docs: 67%

Downloads

1.8K

CRAN downloads in the past year

Rank #8,597 · ~5/day · ~150/mo

Releases R versions

Daily download trend is not available in this view yet.

27330 days

1.2K90 days

1.8K1 year

Compare downloads with other packages →

Also on133 r2u

Repository

GitHub ↗ stscl/pc

18Stars

2Forks

0Open issues

0Open PRs

2Releases

723Commits

1Contributors

causal-discoverycausalitycausality-algorithmscausality-analysiscppgeoinformaticspattern-causalityr

723 commits · Last activity 2026-07-24 · +5.9% stars, 30d

Stars over time

2026-03-25 · 22026-07-30 · 18

Repository practices

Upstream repositoryBeta

3 development-tooling and community-health practices detected across 3 families in the upstream repository

Checks run against github.com/stscl/pc on 2026-07-30.

Continuous integration (1)

GitHub Actions

CRAN release process (1)

cran-comments.md

Lint, format, editor (1)

RStudio project

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

Dependencies

Declared dependencies

12 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.1.0

Imports (6)

ggplot2methodssdsfun sfstatsterra

LinkingTo (2)

Rcpp RcppThread

Suggests (6)

Rcpp RcppThread readr infoxtr spEDM tEDM

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

coupling

Code & Tests

People & History

People (1)

Maintainer (1)

Wenbo Lyu

Author, Maintainer, Copyright holder

Authors (1)

Wenbo Lyu

Author, Maintainer, Copyright holder

Wenbo Lyu

Author, Maintainer, 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
0.2Latest
2026-04-10 · current release · diff ↗
0.1
2026-03-30
R
R 4.5.0 released · 2025-04-11

Package metadata

First published: 2026-03-30
Total releases: 2 / 1 yrs
License: GPL-3 OSI
Minimum R: ≥ 4.1.0
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet

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