R Observatory: Metrics for SGP version 2.2-0.0

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

SGP

2.2-0.0

Student Growth Percentiles & Percentile Growth Trajectories

2packages depend

70.1Kdownloads / year

–test coverage

13/13checks pass

Overview

About

Maintained by Damian W. BetebennerFirst published 2008-10-1757 releasesCRAN page ↗GitHub ↗

An analytic framework for the calculation of norm- and criterion-referenced academic growth estimates using large scale, longitudinal education assessment data as developed in Betebenner (2009) doi:10.1111/j.1745-3992.2009.00161.x.

Install

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

install.packages("SGP", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("CenterForAssessment/SGP")

Development version from CenterForAssessment/SGP. Installs pak first if it is not already available.

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-sgp

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled.

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-SGP

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-SGP

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed).

Health

CRAN checks

13OK

Slowest check: 6.2 min · r-oldrel-windows-x86_64

Code health

None

Tests · ratio 0.00

not tracked

Coverage

100%

Documentation · exports

31

Dependencies · direct

Check history

OK2026-08-05
13 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
NOTE2026-08-01
12 OK · 1 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE
OK2026-03-10
14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE

Documentation

READMENoVignettesYes · dynamicpkgdown siteNoNEWSNoCode of conductNoContributing guideNo

Examples that run: 10%
Documented parameters: 96%
Return-value docs: 93%
References docs: 24%

Downloads

70.1K

CRAN downloads in the past year

Rank #1,831 · ~192/day · ~5.8K/mo

Releases R versions

Daily download trend is not available in this view yet.

3.3K30 days

12.8K90 days

70.1K1 year

Compare downloads with other packages →

Also on130 r2u2 autocran

Repository

GitHub ↗ centerforassessment/sgp

20Stars

21Forks

0Open issues

0Open PRs

10Releases

7,181Commits

6Contributors

student-growth-percentilesrstudent-growth-projectionssgpsgp-analysespercentile-growth-projectionsquantile-regressioncran

7,181 commits · Last activity 2026-08-14

Stars over time

2023-09-07 · 202026-07-07 · 20

Repository practices

Upstream repositoryBeta

2 development-tooling and community-health practices detected across 2 families in the upstream repository

Checks run against github.com/centerforassessment/sgp on 2026-08-09.

Continuous integration (1)

GitHub Actions

Research and citation (1)

CITATION.cff

How this is detected·Detection ruleset v1 (2026-07-18)

Dependencies

Declared dependencies

25 external dependencies (excludes base and recommended)

Depends (1)

R >= 4.1.0

Imports (31)

Cairo callr collapse colorspace crayondatasetsdata.table digest doParallel equate foreachgraphicsgridgrDevicesgridBase iterators gtools jsonlite matrixStatsmethodsparallelquantreg randomNames rngtools RSQLite sn (>= 1.0-0)splinesstatssvglite toOrdinalutils

LinkingTo (0)

none

Suggests (3)

SGPdata knitr rmarkdown

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

2direct

0indirect

SGPdata gtools

Code & Tests

People & History

People (70)

Maintainer (1)

Damian W. Betebenner

Author, Maintainer

Authors (4)

Damian W. Betebenner

Author, Maintainer

Ben Domingue

Author · added in 2.13.1

Yi Shang

Author · added in 1.2-0.0

Adam R. Van Iwaarden

Author

Contributors (66)

Travis Allen