ggchangepoint: Combines Changepoint Analysis with 'ggplot2'

A unified, tidy, 'ggplot2'-native interface to changepoint detection in R. Provides the 'ggcpt' S3 result class with 'broom'-style tidy/glance/augment methods, 'autoplot()' (with confidence intervals, fitted signals, and multivariate facets), composable geoms ('geom_changepoint()', 'geom_cpt_segment()', 'geom_cpt_ci()', 'stat_changepoint()'), and a 'cpt_detect()' dispatcher covering over thirty methods with introspection via 'cpt_methods()': penalised/optimal partitioning (PELT, BinSeg, SegNeigh, AMOC, FPOP, CROPS penalty paths, 'fastcpd', change-in-slope via 'cpop'), multiscale and search methods (WBS, WBS2, NOT, MOSUM, Isolate-Detect, TGUH, SMUCE/HSMUCE with confidence intervals), nonparametric and kernel methods ('changepoint.np', 'ecp', 'kcpRS', 'CptNonPar', sequential 'cpm', self-normalisation via 'SNSeg'), Bayesian methods ('bcp', online 'ocp', 'Rbeast'), high-dimensional and multivariate methods ('InspectChangepoint', 'ocd', 'changepoint.geo'), regression breaks ('strucchange', 'segmented', 'EnvCpt'), and robust detection under drift and autocorrelation ('DeCAFS'). Also includes method comparison, batch/panel detection, bootstrap stability diagnostics, accuracy metrics, Bayesian posterior and run-length plots, interactive rendering, data simulation with canonical test signals, and per-method citations.

Version:	0.4.0
Imports:	changepoint, changepoint.np, dplyr, ecp, generics, ggplot2 (≥ 3.4.0), lifecycle, Rdpack, stats, tibble, utils
Suggests:	rmarkdown, knitr, testthat (≥ 3.0.0), wbs, breakfast, not, mosum, fpop, IDetect, stepR, cpop, bcp, ocp, Rbeast, cpm, kcpRS, CptNonPar, DeCAFS, SNSeg, InspectChangepoint, ocd, changepoint.geo, strucchange, segmented, EnvCpt, fastcpd, plotly, future, future.apply
Published:	2026-08-24
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 and Evaluating Changepoint Methods with ggchangepoint (source, R code) The ggchangepoint Feature Tour: A Complete Map of the Package Surface (source, R code) ggchangepoint: A Unified Tidy Interface for Changepoint Analysis in R (source, R code)

Downloads:

Package source:	ggchangepoint_0.4.0.tar.gz
Windows binaries:	r-devel: ggchangepoint_0.4.0.zip, r-release: ggchangepoint_0.3.0.zip, r-oldrel: ggchangepoint_0.3.0.zip
macOS binaries:	r-release (arm64): ggchangepoint_0.4.0.tgz, r-oldrel (arm64): ggchangepoint_0.4.0.tgz, r-release (x86_64): ggchangepoint_0.4.0.tgz, r-oldrel (x86_64): ggchangepoint_0.4.0.tgz
Old sources:	ggchangepoint archive

Linking:

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