R Observatory: Metrics for ShapeChange version 1.5

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

ShapeChange

1.5Package record

Change-Point Estimation using Shape-Restricted Splines

0packages depend

2.3Kdownloads / year

–test coverage

0/13flavors OK

Overview

About

Maintained by Xiyue LiaoCRAN page ↗

In a scatterplot where the response variable is Gaussian, Poisson or binomial, we consider the case in which the mean function is smooth with a change-point, which is a mode, an inflection point or a jump point. The main routine estimates the mean curve and the change-point as well using shape-restricted B-splines. An optional subroutine delivering a bootstrap confidence interval for the change-point is incorporated in the main routine.

Install

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

install.packages("ShapeChange", 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-shapechange

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-ShapeChange

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-ShapeChange

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

13NOTE

Check messages

NOTERd filesr-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-oldrel-macos-arm64, r-oldrel-macos-x86_64, r-oldrel-windows-x86_64, r-patched-linux-x86_64, r-release-linux-x86_64, r-release-macos-arm64, r-release-macos-x86_64, r-release-windows-x86_64

checkRd: (-1) changept.Rd:17-19: Lost braces in \itemize; meant \describe ?
checkRd: (-1) changept.Rd:20-21: Lost braces in \itemize; meant \describe ?
checkRd: (-1) changept.Rd:22: Lost braces in \itemize; meant \describe ?

NOTEdependencies in R coder-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

Base packages in Suggests/Enhances imported in NAMESPACE:
  ‘graphics’ ‘stats’ ‘utils’

r-devel-windows-x86_64

Base packages in Suggests/Enhances imported in NAMESPACE:
  'graphics' 'stats' 'utils'

NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc

Maintainer: ‘Xiyue Liao <xliao@sdsu.edu>’

No Authors@R field in DESCRIPTION.
Please add one, modifying
  Authors@R: c(person(given = "Xiyue",
                      family = "Liao",
                      role = c("aut", "cre"),
                      email = "xliao@sdsu.edu"),
               person(given = c("Mary", "C"),
                      family = "Meyer",
                      role = "aut"))
as necessary.

CRAN check page ↗

Slowest check: 1.4 min · r-oldrel-windows-x86_64

Status changes

NOTE13 NOTENow
NOTE14 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 1.5

READMENoVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 5includes a package overview page
Examples that run: 75%3 run in a plain check · 1 never run
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 20%

How these are measured

Downloads

2.3K

CRAN downloads in the past year

Rank #20,278 · ~6/day · ~193/mo

Releases R versions

Daily download trend is not available in this view yet.

27430 days

64990 days

2.3K1 year

Compare downloads with other packages →

Also on68 r2u

How downloads are counted

Dependencies

Declared dependencies

2 external dependencies (excludes base and recommended)

Installing ShapeChange adds 4 packages (4 with compiled code, 2.9 MB of source tarballs). Heaviest: Rcpp 1.8 MB, RcppArmadillo 1.0 MB, quadprog 35 KB.

Depends (3)

R >= 3.2.0coneproj quadprog

Imports (0)

none

LinkingTo (0)

none

Suggests (5)

statsMASSgraphicsgrDevicesutils

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (from the free-text Author field) (2)

Xiyue Liao

Mary C Meyer

Maintainer since 1.0 (2015)

Releases (6)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
unarchivedReturned to CRAN
2023-09-06
1.5Latest
record
2023-09-06 · current release · diff ↗
archivedRemoved from CRAN
2023-08-18
email to the maintainer is undeliverable
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
R
R 4.0.0 released · 2020-04-24
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23
R
R 3.4.0 released · 2017-04-21
1.4
record
2016-12-09 · diff ↗
R
R 3.3.0 released · 2016-05-03
1.3
record
2016-03-20 · diff ↗

Show 4 earlier eventsHide 4 earlier events

1.2
record
2016-01-14 · diff ↗
1.1
record
2015-11-15 · diff ↗
1.0
record
2015-10-07
R
R 3.2.0 released · 2015-04-16

Package metadata

First published: 2015-10-07
Total releases: 6 / 11 yrs
License: GPL (>= 2) OSI
Minimum R: ≥ 3.2.0
Download size: 29 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("ShapeChange")

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 ShapeChange version 1.5 [Data set]. HJJB, LLC. Data release v2026-10-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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