changeS: S-Curve Fit for Changepoint Analysis

Estimation of changepoints using an "S-curve" approximation. Formation of confidence intervals for changepoint locations and magnitudes. Both abrupt and gradual changes can be modeled.

Version: 1.0.1
Depends: R (≥ 3.5.0), nls.multstart, ggplot2, stringr
Suggests: knitr, rmarkdown
Published: 2024-03-25
DOI: 10.32614/CRAN.package.changeS
Author: Lan Jiang [aut], Collin Kennedy [aut], Norm Matloff ORCID iD [aut, cre]
Maintainer: Norm Matloff <nsmatloff at>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: no
Materials: README
CRAN checks: changeS results


Reference manual: changeS.pdf
Vignettes: Quick_Start


Package source: changeS_1.0.1.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): changeS_1.0.1.tgz, r-oldrel (arm64): changeS_1.0.1.tgz, r-release (x86_64): changeS_1.0.1.tgz, r-oldrel (x86_64): changeS_1.0.1.tgz


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