R Observatory: Metrics for corpcor version 1.6.10

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

corpcor

1.6.10Package record

Efficient Estimation of Covariance and (Partial) Correlation

128packages dependsuggested by 14

582.8Kdownloads / year

–test coverage

11/13flavors OK

Overview

About

Maintained by Korbinian StrimmerCRAN page ↗Website ↗

Implements a James-Stein-type shrinkage estimator for the covariance matrix, with separate shrinkage for variances and correlations. The details of the method are explained in Schafer and Strimmer (2005) DOI:10.2202/1544-6115.1175 and Opgen-Rhein and Strimmer (2007) DOI:10.2202/1544-6115.1252. The approach is both computationally as well as statistically very efficient, it is applicable to "small n, large p" data, and always returns a positive definite and well-conditioned covariance matrix. In addition to inferring the covariance matrix the package also provides shrinkage estimators for partial correlations and partial variances. The inverse of the covariance and correlation matrix can be efficiently computed, as well as any arbitrary power of the shrinkage correlation matrix. Furthermore, functions are available for fast singular value decomposition, for computing the pseudoinverse, and for checking the rank and positive definiteness of a matrix.

Changes in 1.6.10

update URLs

From NEWS in the release

Install

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

install.packages("corpcor", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

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-corpcor

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-corpcor

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-corpcor

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

2NOTE11OK

Check messages

NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc

Maintainer: ‘Korbinian Strimmer <strimmerlab@gmail.com>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Juliane",
                      family = "Schafer",
                      role = "aut"),
               person(given = "Rainer",
                      family = "Opgen-Rhein",
                      role = "aut"),
               person(given = "Verena",
                      family = "Zuber",
                      role = "aut"),
               person(given = "Miika",
                      family = "Ahdesmaki",
                      role = "aut"),
               person(given = c("A.", "Pedro", "Duarte"),
                      family = "Silva",
                      role = "aut"),
               person(given = "Korbinian",
                      family = "Strimmer.",
                      role = "aut"),
               person(given = "Korbinian",
                      family = "Strimmer",
                      role = "cre",
                      email = "strimmerlab@gmail.com"))
as necessary.

CRAN check page ↗

Slowest check: 54 s · r-devel-windows-x86_64

Status changes

NOTE11 OK, 2 NOTENow
NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.6.10

READMENoVignettesNoNEWSYes · 100% structured · mentions 1.6.10Citation fileNoWebsiteYes

Help pages: 15 (1 internal)includes a package overview page
Examples that run: 100%13 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 47%

How these are measured

Downloads

582.8K

CRAN downloads in the past year

Rank #554 · ~1.6K/day · ~48.6K/mo

Releases R versions

Daily download trend is not available in this view yet.

43.1K30 days

123.3K90 days

582.8K1 year

Compare downloads with other packages →

Also on9.3K r2u155 autocran24.5K conda_forge184 bioconda333 c2d4u

How downloads are counted

Repository

strimmerlab/software ↗

Responsiveness

not measured

How these are measured

PracticesBeta

Repository github.com/strimmerlab/software is linked, but repository-practices checks have not run for it yet.

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

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

Installing corpcor adds no packages beyond those that come with R.

Depends (1)

R >= 3.0.2

Imports (1)

stats

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

128direct

136indirect

Depends 26 · Imports 102

Suggested by 14

Show the 48 most downloaded dependentsHide the 48 most downloaded dependents

Depends, Imports or LinkingTo, most downloaded first

and 80 more dependents and 14 packages that suggest it on CRAN ↗

How these are counted

Code & Tests

People & History

People (from the free-text Author field) (6)

· added in 1.6.9

· added in 1.4.0

· added in 1.6.0

· added in 1.6.9

A. Pedro Duarte Silva

· added in 1.6.0

Korbinian Strimmer.

Maintainer since 1.0.0 (2005)

Listed in earlier versions (3)

Show 3 peopleHide 3 people

Juliane Schaefer

no longer listed · 1.0.0 to 1.6.2

Miika Ahdesm\"aki

no longer listed · 1.6.3 to 1.6.8

Juliane Sch\"afer

no longer listed · 1.6.3 to 1.6.8

Releases (35)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
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R 4.5.0 released · 2025-04-11
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R 4.4.0 released · 2024-04-24
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R 4.3.0 released · 2023-04-21
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R 4.2.0 released · 2022-04-22
1.6.10Latest
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2021-09-16 · current release · diff ↗
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R 4.1.0 released · 2021-05-18
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R 4.0.0 released · 2020-04-24
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R 3.6.0 released · 2019-04-26
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R 3.5.0 released · 2018-04-23
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R 3.4.0 released · 2017-04-21
1.6.9
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R 3.3.0 released · 2016-05-03
1.6.8
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2015-07-08 · diff ↗
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R 3.2.0 released · 2015-04-16
1.6.7
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2014-09-29 · diff ↗

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R 3.1.0 released · 2014-04-10
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R 3.0.0 released · 2013-04-03
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R 2.15.0 released · 2012-03-30
1.6.2
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2012-01-22 · diff ↗ ·
added 2 exports
estimate.lambda, estimate.lambda.var
1.6.1
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2012-01-20 · diff ↗ ·
added 27 exports
cor.shrink, cor2pcor, cov.shrink, crossprod.powcor.shrink, decompose.cov, decompose.invcov, fast.svd, invcor.shrink, invcov.shrink, is.positive.definite, make.positive.definite, mpower, pcor.shrink, pcor2cor, powcor.shrink, pseudoinverse, pvar.shrink, rank.condition, rebuild.cov, rebuild.invcov, sm.index, sm2vec, var.shrink, vec2sm, wt.moments, wt.scale, wt.var
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R 2.14.0 released · 2011-10-31
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R 2.13.0 released · 2011-04-13
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R 2.12.0 released · 2010-10-15
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R 2.10.0 released · 2009-10-26
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R 2.9.0 released · 2009-04-17
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R 2.4.0 released · 2006-10-03
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R 2.3.0 released · 2006-04-24
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R 2.2.0 released · 2005-10-06
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2005-09-30 · diff ↗
1.0.0
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2005-08-20
R
R 2.1.0 released · 2005-04-18

Package metadata

First published: 2005-08-20
Total releases: 35 / 21 yrs
License: GPL (>= 3) OSI
Minimum R: ≥ 3.0.2
Download size: 22 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("corpcor")

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 corpcor version 1.6.10 [Data set]. HJJB, LLC. Data release v2026-10-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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