ggchangepoint: Combines Changepoint Analysis with 'ggplot2'

R provides fantastic tools for changepoint analysis, but plots generated by the tools do not have the 'ggplot2' style. This tool, however, combines 'changepoint', 'changepoint.np' and 'ecp' together, and uses 'ggplot2' to visualize changepoints. It provides a unified 'ggcpt' S3 result class, 'broom'-style tidy/glance/augment methods, 'autoplot()', composable geoms ('geom_changepoint()', 'geom_cpt_segment()', 'geom_cpt_ci()', 'stat_changepoint()'), a unified 'cpt_detect()' dispatcher with method introspection via 'cpt_methods()', wrappers for several optional engines (WBS, WBS2, NOT, MOSUM, FPOP, Isolate-Detect, TGUH), a method comparison module, accuracy metrics, data simulation, and canonical test signals.

Version:	0.3.0
Imports:	changepoint, changepoint.np, dplyr, ecp, generics, ggplot2 (≥ 3.4.0), lifecycle, Rdpack, tibble, utils
Suggests:	rmarkdown, knitr, testthat (≥ 3.0.0), wbs, breakfast, not, mosum, fpop, IDetect, future, future.apply
Published:	2026-06-26
DOI:	10.32614/CRAN.package.ggchangepoint
Author:	Youzhi Yu [aut, cre]
Maintainer:	Youzhi Yu <yuyouzhi666 at icloud.com>
BugReports:	https://github.com/PursuitOfDataScience/ggchangepoint/issues
License:	GPL (≥ 3)
URL:	https://pursuitofdatascience.github.io/ggchangepoint/
NeedsCompilation:	no
Materials:	README, NEWS
CRAN checks:	ggchangepoint results

Documentation:

Reference manual:	ggchangepoint.html , ggchangepoint.pdf
Vignettes:	Comparing changepoint methods with ggchangepoint (source, R code) ggchangepoint feature tour (source, R code) ggchangepoint: A Unified Tidy Interface for Changepoint Analysis in R (source, R code)

Downloads:

Package source:	ggchangepoint_0.3.0.tar.gz
Windows binaries:	r-devel: ggchangepoint_0.3.0.zip, r-release: ggchangepoint_0.3.0.zip, r-oldrel: ggchangepoint_0.3.0.zip
macOS binaries:	r-release (arm64): ggchangepoint_0.3.0.tgz, r-oldrel (arm64): ggchangepoint_0.3.0.tgz, r-release (x86_64): ggchangepoint_0.3.0.tgz, r-oldrel (x86_64): ggchangepoint_0.3.0.tgz
Old sources:	ggchangepoint archive

Linking:

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