Rpcop

1.2.3

Principal Curves of Oriented Points

0packages depend

347downloads / year

85.7%test coverage

13/13checks pass

Overview

About

Maintained by Kevin Michael FrickFirst published 2026-06-243 releasesCRAN page ↗GitHub ↗

Principal curves generalize the notion of a first principal component to the case in which it is a nonlinear smooth curve. This package provides a function pcop(X) to compute principal curves with the algorithm defined in Delicado (2001) doi:10.1006/jmva.2000.1917 from a data matrix X.

Install

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

install.packages("Rpcop", 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("kmfrick/Rpcop")

Development version from kmfrick/Rpcop. 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-rpcop

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

# 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-Rpcop

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

Health

CRAN checks

13OK

Slowest check: 3.1 min · r-oldrel-windows-x86_64

Code health

Yes

Tests · ratio 0.93

85.7%

Coverage · measured lines

100%

Documentation · exports

Dependencies · direct

Check history

OK2026-06-25
7 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMEYes · 226 wordsVignettesYes · dynamicpkgdown siteNoNEWSYes · 67% structuredCode of conductNoContributing guideNo

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

Downloads

347

CRAN downloads in the past year

Rank #24,040 · ~1/day · ~29/mo

Releases R versions

Daily download trend is not available in this view yet.

34530 days

34590 days

3471 year

Compare downloads with other packages →

Also on371 r2u11 autocran

Repository

GitHub ↗ kmfrick/rpcop

0Stars

0Forks

0Open issues

0Open PRs

0Releases

Last activity 2026-06-19

Repository practices

Upstream repositoryBeta

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

Checks run against github.com/kmfrick/rpcop on 2026-07-19.

Continuous integration (1)

GitHub Actions

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

Dependencies

Declared dependencies

6 external dependencies (excludes base and recommended)

Depends (1)

R >= 3.5.0

Imports (2)

Rcpp princurve

LinkingTo (1)

Rcpp

Suggests (3)

knitr rmarkdown testthat

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

Code & Tests

People & History

People (4)

Maintainer (1)

Kevin Michael Frick

Translator, Author, Maintainer

Authors (3)

Kevin Michael Frick

Translator, Author, Maintainer

Author

Author

Translators (1)

Translator, Author, Maintainer

Package Timeline

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

1.2.3Latest
2026-06-24 · current release · diff ↗
unarchivedReturned to CRAN
2026-06-24
R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
archivedRemoved from CRAN
2023-08-10
issues were not corrected in time
1.1
2023-07-16 · diff ↗
unarchivedReturned to CRAN
2023-07-16
R
R 4.3.0 released · 2023-04-21
archivedRemoved from CRAN
2022-09-18
issues were not corrected in time
1.0
2022-09-02
R
R 4.2.0 released · 2022-04-22

Package metadata

First published: 2026-06-24
Total releases: 3 / 1 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.5.0
Download size: not tracked yet
Installed size: not tracked yet
With dependencies: not tracked yet

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