regDIF
Regularized Differential Item Functioning
Description
Performs regularization of differential item functioning (DIF) parameters in item response theory (IRT) models (Belzak & Bauer, 2020) <https://pubmed.ncbi.nlm.nih.gov/31916799/> using a penalized expectation-maximization algorithm.
Downloads
309
Last 30 days
14882nd
682
Last 90 days
2.7K
Last year
Trend: +102% (30d vs prior 30d)
0
Last 30 days
23
Last 90 days
85
Last year
Trend: -100% (30d vs prior 30d)
2
Last 7 days
4
Last 30 days
1
All-time
autoCRAN-only: this name is served only by autoCRAN, so the count is exact.
CRAN Check Status
Show all 13 flavors
| Flavor | Status |
|---|---|
| r-devel-linux-x86_64-debian-clang | NOTE |
| r-devel-linux-x86_64-debian-gcc | NOTE |
| 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 details (2 non-OK)
CRAN incoming feasibility
Maintainer: ‘William Belzak <wbelzak@gmail.com>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: person(given = "William",
family = "Belzak",
role = c("aut", "cre"),
email = "wbelzak@gmail.com")
as necessary.
CRAN incoming feasibility
Maintainer: ‘William Belzak <wbelzak@gmail.com>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: person(given = "William",
family = "Belzak",
role = c("aut", "cre"),
email = "wbelzak@gmail.com")
as necessary.
Check History
NOTE 11 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Jun 9, 2026
CRAN incoming feasibility
Maintainer: ‘William Belzak <wbelzak@gmail.com>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: person(given = "William",
family = "Belzak",
role = c("aut", "cre"),
email = "wbelzak@gmail.com")
as necessary.
CRAN incoming feasibility
Maintainer: ‘William Belzak <wbelzak@gmail.com>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: person(given = "William",
family = "Belzak",
role = c("aut", "cre"),
email = "wbelzak@gmail.com")
as necessary.
ERROR 11 OK · 1 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Jun 8, 2026
CRAN incoming feasibility
Maintainer: ‘William Belzak <wbelzak@gmail.com>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: person(given = "William",
family = "Belzak",
role = c("aut", "cre"),
email = "wbelzak@gmail.com")
as necessary.
CRAN incoming feasibility
Maintainer: ‘William Belzak <wbelzak@gmail.com>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: person(given = "William",
family = "Belzak",
role = c("aut", "cre"),
email = "wbelzak@gmail.com")
as necessary.
NOTE 12 OK · 2 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026
CRAN incoming feasibility
Maintainer: ‘William Belzak <wbelzak@gmail.com>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: person(given = "William",
family = "Belzak",
role = c("aut", "cre"),
email = "wbelzak@gmail.com")
as necessary.
CRAN incoming feasibility
Maintainer: ‘William Belzak <wbelzak@gmail.com>’
No Authors@R field in DESCRIPTION.
Please add one, modifying
Authors@R: person(given = "William",
family = "Belzak",
role = c("aut", "cre"),
email = "wbelzak@gmail.com")
as necessary.
Code
Structure
Lines of code
11,960
Files
81
Compiled share
0%
Has compiled src
No
Language breakdown
API
Exported functions
1
Internal functions
2
Recent export changes
Testing & CI
Has tests
Yes
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
Yes
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
–
System requirements
–
C++ standard
–
License
MIT + file LICENSE
License flags
SPDX valid, OSI approved
History
Versions
3
First release
2021-06-22
Latest release
2024-02-23
Avg cadence
488 days
Cold removal rate
–
Dep drift
2
LOC over versions
Per-file churn detail lives in the source pipeline: https://github.com/r-observatory/cran-code-metrics.