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ACTCD

Asymptotic Classification Theory for Cognitive Diagnosis

v1.4-0 · Feb 26, 2026 · GPL (>= 2)

Description

Cluster analysis for cognitive diagnosis based on the Asymptotic Classification Theory (Chiu, Douglas & Li, 2009; <doi:10.1007/s11336-009-9125-0>). Given the sample statistic of sum-scores, cluster analysis techniques can be used to classify examinees into latent classes based on their attribute patterns. In addition to the algorithms used to classify data, three labeling approaches are proposed to label clusters so that examinees' attribute profiles can be obtained.

Downloads

CRAN

341

Last 30 days

13014th

886

Last 90 days

3.9K

Last year

Trend: +33.2% (30d vs prior 30d)

r2u CRAN

24

Last 30 days

119

Last 90 days

431

Last year

Trend: -42.9% (30d vs prior 30d)

autoCRAN

10

Last 7 days

68

Last 30 days

0

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 12, 2026
ERROR 13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Mar 11, 2026
ERROR r-devel-linux-x86_64-fedora-gcc

whether package can be installed

Installation failed.
See ‘/data/gannet/ripley/R/packages/tests-devel/ACTCD.Rcheck/00install.out’ for details.
OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Code

Structure

Lines of code

1,168

Files

29

Compiled share

7.4%

Has compiled src

Yes

Language breakdown

R 577 (49.4%)C/C++/src 87 (7.4%)Docs 504 (43.2%)

API

Exported functions

5

Internal functions

0

Recent export changes

v1.0-0+5 alpha, eta, cd.cluster +2 more

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

3.1.0

System requirements

C++ standard

License

GPL (>= 2)

License flags

SPDX valid, OSI approved

History

Versions

5

First release

2013-10-21

Latest release

2026-02-26

Avg cadence

997 days

Cold removal rate

Dep drift

3

LOC over versions

v1.0-0: 1,104 LOCv1.1-0: 1,170 LOCv1.2-0: 1,175 LOCv1.3-0: 1,168 LOCv1.4-0: 1,168 LOC

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

Dependency Network

Dependencies Reverse dependencies GDINA R.methodsS3 ACTCD

Version History

6 tracked
new 1.4-0 Mar 10, 2026
updated 1.4-0 ← 1.3-0 diff Feb 25, 2026
updated 1.3-0 ← 1.2-0 diff Nov 8, 2023
updated 1.2-0 ← 1.1-0 diff Apr 22, 2018
updated 1.1-0 ← 1.0-0 diff Dec 16, 2016
new 1.0-0 Oct 21, 2013