Skip to content

changeS

S-Curve Fit for Changepoint Analysis

v1.0.1 · Mar 25, 2024 · GPL (>= 2)

Description

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.

Downloads

CRAN

267

Last 30 days

18235th

685

Last 90 days

2.4K

Last year

Trend: +44.3% (30d vs prior 30d)

r2u CRAN

1

Last 30 days

29

Last 90 days

156

Last year

Trend: -92.3% (30d vs prior 30d)

autoCRAN

5

Last 7 days

15

Last 30 days

1

All-time

autoCRAN-only: this name is served only by autoCRAN, so the count is exact.

CRAN Check Status

13 OK
Show all 13 flavors
Flavor Status
r-devel-linux-x86_64-debian-clang OK
r-devel-linux-x86_64-debian-gcc OK
r-devel-linux-x86_64-fedora-clang OK
r-devel-linux-x86_64-fedora-gcc OK
r-devel-windows-x86_64 OK
r-oldrel-macos-arm64 OK
r-oldrel-macos-x86_64 OK
r-oldrel-windows-x86_64 OK
r-patched-linux-x86_64 OK
r-release-linux-x86_64 OK
r-release-macos-arm64 OK
r-release-macos-x86_64 OK
r-release-windows-x86_64 OK

Check History

OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Code

Structure

Lines of code

748

Files

18

Compiled share

0%

Has compiled src

No

Language breakdown

R 386 (51.6%)Docs 148 (19.8%)Vignettes 214 (28.6%)

API

Exported functions

2

Internal functions

4

Recent export changes

v1.0.1+2 fitS, fitS_linear

Testing & CI

Has tests

No

Test-to-code ratio

0.00

testthat edition

CI present

No

CI type

[]

PR gated

No

Docs

Return-value doc rate

100%

\dontrun example ratio

0%

Roxygen coverage

100%

Has pkgdown

No

NEWS present

No

Health & Security signals

Informational signals; not verdicts.

on.exit coverage

Unsafe pattern score

0

Dep constraint coverage

0%

Secret pattern count

0

Bundled 3rd-party code

2 items

Portability & License

Min R version

3.5.0

System requirements

C++ standard

License

GPL (>= 2)

License flags

SPDX valid, OSI approved

History

Versions

1

First release

2024-03-25

Latest release

2024-03-25

Avg cadence

Cold removal rate

Dep drift

0

Per-file churn detail lives in the source pipeline: https://github.com/r-observatory/cran-code-metrics.

Dependency Network

Dependencies Reverse dependencies nls.multstart ggplot2 stringr changeS

Version History

1 tracked
new 1.0.1 Mar 10, 2026

R Observatory began tracking this package on Mar 10, 2026; it first appeared on CRAN Mar 25, 2024. Releases before tracking aren’t shown.