R Observatory: Metrics for strucchange version 1.6-0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

strucchange

1.6-0Package record

Testing, Monitoring, and Dating Structural Changes

31packages dependsuggested by 22

626.8Kdownloads / year

32.6%test coverage

8/13flavors OK

Overview

About

Maintained by Achim ZeileisCRAN page ↗Codeberg ↗Website ↗Issues ↗

Testing, monitoring and dating structural changes in (linear) regression models. strucchange features tests/methods from the generalized fluctuation test framework as well as from the F test (Chow test) framework. This includes methods to fit, plot and test fluctuation processes (e.g., CUSUM, MOSUM, recursive/moving estimates) and F statistics, respectively. It is possible to monitor incoming data online using fluctuation processes. Finally, the breakpoints in regression models with structural changes can be estimated together with confidence intervals. Emphasis is always given to methods for visualizing the data.

Changes in 1.6-0

Code repository changed from R-Forge to Codeberg at: <https://codeberg.org/zeileis/strucchange/>
Added altdoc page with overview and documentation at: <https://zeileis.codeberg.page/strucchange/>
A new hands-on introduction to the package was written for the altdoc page which is also available as: vignette("strucchange-seatbelt", package = "strucchange")
Fixed long-standing issue of multiple definitions of computeEmpProc() within mefp() with different arguments. Now all definitions have all of the arguments (set to NULL by default) and check that only the required arguments are specified.
Similarly the issue of multiple definitions of plotProcess() with different arguments in efpFunctional() has been fixed. Now all arguments are the same and differences in the defaults are resolved within the different functions, also catching potentially erroneous specifications.

Show all changes in 1.6-0Hide the rest of the changes in 1.6-0

Updated structure() calls to use names = ... instead of .Names = ... etc.

From NEWS.md in the release

Install

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

install.packages("strucchange", 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-strucchange

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-strucchange

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-strucchange

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

5NOTE8OK

Check messages

NOTEfor differences from example reference outputr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc, r-devel-windows-x86_64

r-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc, r-devel-linux-x86_64-fedora-clang, r-devel-linux-x86_64-fedora-gcc

Comparing ‘strucchange-Ex.Rout’ to ‘strucchange-Ex.Rout.save’:
1767c1767
< Call:  fit(formula = homicides ~ 1, family = ..2, data = data)
---
> Call:  fit(formula = ..1, family = ..2, data = data)
1856c1856
< Call:  fit(formula = homicides ~ 1, family = ..2, data = data)
---
> Call:  fit(formula = ..1, family = ..2, data = data)

r-devel-windows-x86_64

Comparing 'strucchange-Ex.Rout' to 'strucchange-Ex.Rout.save':
1767c1767
< Call:  fit(formula = homicides ~ 1, family = ..2, data = data)
---
> Call:  fit(formula = ..1, family = ..2, data = data)
1856c1856
< Call:  fit(formula = homicides ~ 1, family = ..2, data = data)
---
> Call:  fit(formula = ..1, family = ..2, data = data)

CRAN check page ↗

Slowest check: 3.3 min · r-devel-windows-x86_64

Status changes

NOTE8 OK, 5 NOTENow
NOTE12 OK, 1 NOTE2026-09-05
OK13 OK2026-08-12
NOTE13 NOTE2026-06-08
ERROR12 NOTE, 1 ERROR2026-06-07
NOTE14 NOTE2026-03-27

Show 2 earlier changesHide 2 earlier changes

ERROR13 NOTE, 1 ERROR2026-03-25
NOTE14 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.6-0

READMEYes · 277 wordsVignettesYes · 2 · dynamicNEWSYes · 100% structured · mentions 1.6-0Citation fileYes · cites a publicationWebsiteYes

Cites a JSS article

Help pages: 38 (1 internal)
Examples that run: 100%35 run in a plain check
Exported functions with examples: 81%
Documented parameters: 83%
Return-value docs: 81%
Help pages citing references: 66%

Also includes 2 demo scripts (run with demo())

Vignettes (2)

How these are measured

Downloads

626.8K

CRAN downloads in the past year

Rank #462 · ~1.7K/day · ~52.2K/mo

Releases R versions

Daily download trend is not available in this view yet.

73.4K30 days

169.8K90 days

626.8K1 year

Compare downloads with other packages →

Also on6K r2u199 autocran9.6K conda_forge1.1K c2d4u

How downloads are counted

Repository

codeberg.org/zeileis/strucchange ↗

1Stars

0Forks

0Open issues

0Open PRs

361Commits

8Commit identities

361 commits · Last activity 2026-08-08

Responsiveness

not measured

How these are measured

PracticesBeta

Repository codeberg.org/zeileis/strucchange is linked, but repository-practices checks have not run for it yet. Checks are GitHub-only for now.

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

Dependencies

Declared dependencies

11 external dependencies (excludes base and recommended)

Installing strucchange adds 2 packages (1 with compiled code, 2.1 MB of source tarballs). Heaviest: sandwich 1.4 MB, zoo 675 KB.

Depends (3)

R >= 2.10.0zoo sandwich

Imports (3)

graphicsstatsutils

LinkingTo (0)

none

Suggests (10)

stats4car dynlm e1071 foreach lmtest mvtnorm tseries knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

31direct

157indirect

Depends 4 · Imports 27

Suggested by 22

Show the 48 most downloaded packagesHide the 48 most downloaded packages

Depends, Imports or LinkingTo, most downloaded first

Suggests, most downloaded first

zoo lmtest sandwich AER ggfortify betareg dynlm trend psychotools psychotree ARDL meboot glogis futurize bcp ggchangepoint model4you

and 5 more packages that suggest it on CRAN ↗

How these are counted

Code & Tests

Datasets

People & History

People (7)

Achim Zeileis

Author, Maintainer since 0.9-1 (2001)

Author

Author

Author

Contributor

Contributor

Contributor · added in 1.5-3

Listed in earlier versions (4)

Show 4 peopleHide 4 people

Bruce Hansen

no longer listed · 0.9-1 to 1.5-4

Andrea Peters

no longer listed · 0.9-1 to 1.2-13

Merkle

no longer listed · 1.5-1 to 1.6-0

Hansen

no longer listed · 1.6-0

Releases (47)

Pick two releases to compare their code metrics.

1.6-0Latest
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2026-08-04 · current release · diff ↗
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R 4.6.0 released · 2026-04-24
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R 4.5.0 released · 2025-04-11
1.5-4
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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
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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
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R 3.3.0 released · 2016-05-03
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R 3.2.0 released · 2015-04-16
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R 3.1.0 released · 2014-04-10
1.5-0
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2013-10-29 · diff ↗ ·
added 4 exports
maxMOSUM, catL2BB, ordL2BB, ordwmax
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R 3.0.0 released · 2013-04-03
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R 2.15.0 released · 2012-03-30
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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 2.11.0 released · 2010-04-22
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R 2.7.0 released · 2008-04-22
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R 2.4.0 released · 2006-10-03
1.3-0
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2006-08-12 · diff ↗ ·
added 42 exports
efp, gefp, Fstats, mefp, monitor, breakpoints, breakdates, breakfactor, efpFunctional, maxBM, maxBB, maxBMI, maxBBI, maxL2BB, meanL2BB, rangeBM, rangeBB, rangeBMI, rangeBBI, supLM, sctest, boundary, recresid, recresid.default, simulateBMDist, root.matrix, solveCrossprod, pvalue.efp, pvalue.Fstats, pargmaxV and 12 more
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R 2.3.0 released · 2006-04-24
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R 1.6.0 released · 2002-10-01
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R 1.5.0 released · 2002-04-29
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2001-07-17 · diff ↗
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2001-06-28 · diff ↗
0.9-1
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2001-05-17

Package metadata

First published: 2001-05-17
Total releases: 47 / 25 yrs
License: GPL-2 | GPL-3 OSI
Minimum R: ≥ 2.10.0
Bundled data: 128 KB / 10 files
Download size: 751 KB

Appears in task views

Econometrics Analysis of Ecological and Environmental Data Empirical Finance Time Series Analysis

Cite

Cite this package

Run in R for the authors' entry:

citation("strucchange")

The package provides a citation file, so citation() returns the authors' own entry.

It points to 10.18637/jss.v007.i02, 10.1016/s0167-9473(03)00030-6, 10.1016/j.csda.2005.07.001.

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 strucchange version 1.6-0 [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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