R Observatory: Metrics for OPCC version 1.0.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

OPCC

1.0.1Package record

Open Postal Code Correspondence

0packages depend

417downloads / year

66.2%test coverage

13/13flavors OK

Overview

About

Maintained by Lennon LiCRAN page ↗GitHub ↗Issues ↗

An open, fully reproducible alternative to closed postal code conversion files, giving source-qualified many-to-many correspondence between Ontario postal codes and Statistics Canada 2021 census geographies. Every published artifact can be rebuilt step by step from public sources using the included build functions, so any user can reproduce and audit the conversion end to end. Lookup results retain allocation weights, evidence source, lineage, method, and vintage; unmatched postal codes remain explicit, and versioned release artifacts are checksum-verified before use. A built-in 'shiny' application provides a point-and-click interface for joining, mapping, and exporting results. Correspondences are derived from the Statistics Canada National Address Register https://www150.statcan.gc.ca/n1/pub/46-26-0002/462600022022001-eng.htm, the 2021 Census Geographic Attribute File https://www12.statcan.gc.ca/census-recensement/2021/geo/aip-pia/attribute-attribs/index-eng.cfm, and the GeoNames postal code export https://download.geonames.org/export/zip/. The package does not redistribute Canada Post, PCCF, or PCCF+ data and does not claim authoritative postal assignments.

Changes in 1.0.1

Release artifacts are no longer cached in the user's home filespace by default. cache_dir now defaults to NULL, which resolves to a session temporary directory unless you pass a path, set OPCC.cache_dir or OPCC_CACHE_DIR, or accept the one-time prompt offered in an interactive session. A non-interactive session is never prompted, and writes nothing outside tempdir() unless permission was granted earlier or one of those settings is present. See ?clear_opcc_cache for the resolution order.
DESCRIPTION now cites the Statistics Canada and GeoNames sources the correspondences are derived from.
The README and vignette rebuild walkthroughs now pass the required output_dir to build_centroids(), build_db_assignment() and build_m2(). The documented calls previously omitted it and errored.

Show all changes in 1.0.1Hide the rest of the changes in 1.0.1

clear_opcc_cache() now also removes the Shiny app's reusable map artifact from the shiny-app subdirectory, which the prompt and README already said it would.
README.md and NEWS.md are now included in the package, so they appear on the CRAN package page.

From NEWS.md in the release

Install

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

install.packages("OPCC", 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("lennon-li/OPCC")

Development version from lennon-li/OPCC. 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-opcc

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-OPCC

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-OPCC

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 2.7 min · r-oldrel-macos-x86_64

Status changes

OK13 OKNow
OK4 OK2026-09-22

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.0.1

READMEYes · 644 wordsVignettesYes · 1 · dynamicNEWSYes · 100% structured · mentions 1.0.1Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 29includes a package overview page
Examples that run: 68%19 run in a plain check (1 of them under a condition) · 9 only when donttest examples are enabled (R CMD check --as-cran)
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 0%

Vignettes (1)

Using OPCC HTML

How these are measured

Downloads

417

CRAN downloads in the past year

Rank #25,060 · ~1/day · ~35/mo

Releases R versions

Daily download trend is not available in this view yet.

41730 days

41790 days

4171 year

Compare downloads with other packages →

Also on5 r2u1 autocran

How downloads are counted

Repository

lennon-li/opcc ↗Account: lennon-li

0Stars

0Forks

0Open issues

0Open PRs

0Releases

Last activity 2026-09-12

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: not measured

How these are measured

PracticesBeta

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

Checks run against github.com/lennon-li/opcc on 2026-10-18.

Continuous integration (2)

GitHub ActionsR CMD check workflow

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

Governance and community (6)

Code of conductContributing guideIssue templatesPR templateSecurity policyGovernance doc

Docs source (1)

pkgdown

CRAN release process (2)

cran-comments.mdCRAN-SUBMISSION

Show all practicesHide 1 practice

Research and citation (1)

CITATION.cff

How this is detected·Detection ruleset v3 (2026-09-26)

AI coding toolsBeta

This repository shows signs of AI coding tools.

Claude Codefirst seen 2026-07-17
Named in .Rbuildignore: .claude
Named in .gitignore: .claude, .mcp.json, CLAUDE.md
Commits: at least 22 crediting it in the message
Codexfirst seen 2026-08-24
Named in .Rbuildignore: .codex
Named in .gitignore: .codex
GitHub Copilotfirst seen 2026-08-31
Commits: at least 6 crediting it in the message
Gemini CLIfirst seen 2026-09-11
Named in .gitignore: GEMINI.md
OpenCodefirst seen 2026-09-11
Named in .gitignore: .opencode, opencode.json

Models named in its commits

Claude Opus 519 commits · Aug to Sep 2026
Claude Fable 53 commits · Jul 2026

Counts are commits, not lines of code. Commits by a tool's accounts count once across all of its accounts. Commits crediting it are the largest count among its credit lines, a minimum.How this is detected·Detection ruleset v4 (updated 2026-09-27)

Dependencies

Declared dependencies

20 external dependencies (excludes base and recommended)

Installing OPCC adds 2 packages (2 with compiled code, 1.2 MB of source tarballs). Heaviest: jsonlite 1.0 MB, digest 231 KB.

Depends (1)

R >= 4.1

Imports (2)

digest jsonlite

LinkingTo (0)

none

Suggests (18)

testthat curl dplyr readr readxl rlang sf knitr rmarkdown withr shiny bslib DT leaflet htmlwidgets chromote processx httpuv

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (1)

Lennon Li

Releases (1)

1.0.1Latest
record
2026-09-22 · current release
R
R 4.6.0 released · 2026-04-24

Package metadata

First published: 2026-09-22
Total releases: 1 / 1 yrs
License: MIT + file LICENSE OSI
Minimum R: ≥ 4.1
Download size: 118 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("OPCC")

Format

Li, L. (2026). OPCC: Open Postal Code Correspondence (Version 1.0.1) [Computer software]. https://doi.org/10.32614/CRAN.package.OPCC

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

The repository also keeps a CITATION.cff.

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 OPCC version 1.0.1 [Data set]. HJJB, LLC. Data release v2026-10-22. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-22, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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