{ "_id": "6a1d6c9d1d7bb097a0a4f8e5", "Package": "regDIF", "Title": "Regularized Differential Item Functioning", "Version": "1.1.0", "Author": "William Belzak", "Maintainer": "William Belzak ", "Description": "Performs regularization of differential item functioning\n(DIF) parameters in item response theory (IRT) models (Belzak &\nBauer, 2020) using\na penalized expectation-maximization algorithm.", "License": "MIT + file LICENSE", "Encoding": "UTF-8", "LazyData": "true", "RoxygenNote": "7.2.3", "VignetteBuilder": "knitr", "Repository": "https://wbelzak.r-universe.dev", "Date/Publication": "2022-12-26 13:50:09 UTC", "RemoteUrl": "https://github.com/wbelzak/regdif", "RemoteRef": "HEAD", "RemoteSha": "36e567d1910f46cfe4c5fadeacff7aa8f546afb0", "NeedsCompilation": "yes", "Packaged": { "Date": "2026-06-01 11:21:56 UTC", "User": "root" }, "MD5sum": "d9df2e964b54d21e50d51e748eec91c6", "_user": "wbelzak", "_type": "src", "_file": "regDIF_1.1.0.tar.gz", "_fileid": "8d4b242e9fe23308de9699795955be3588ebcb72eb98503411ca08bbce3d1e7c", "_filesize": 259615, "_sha256": "8d4b242e9fe23308de9699795955be3588ebcb72eb98503411ca08bbce3d1e7c", "_created": "2026-06-01T11:21:56.000Z", "_published": "2026-06-01T11:27:25.384Z", "_distro": "noble", "_jobs": [ { "job": 78841500101, "time": 123, "config": "linux-devel-arm64", "r": "4.7.0", "check": "NOTE", "artifact": "7330171398" }, { "job": 78841500126, "time": 129, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "NOTE", "artifact": "7330173381" }, { "job": 78841500096, "time": 122, "config": "linux-release-x86_64", "r": "4.6.0", "check": "NOTE", "artifact": "7330171003" }, { "job": 78841500093, "time": 193, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "NOTE", "artifact": "7330182791" }, { "job": 78841500200, "time": 296, "config": "macos-oldrel-x86_64", "r": "4.5.3", "check": "NOTE", "artifact": "7330219002" }, { "job": 78841500258, "time": 189, "config": "macos-release-arm64", "r": "4.6.0", "check": "NOTE", "artifact": "7330178816" }, { "job": 78841500185, "time": 255, "config": "macos-release-x86_64", "r": "4.6.0", "check": "NOTE", "artifact": "7330207081" }, { "job": 78841012298, "time": 183, "config": "source", "r": "4.6.0", "check": "OK", "artifact": "7330132626" }, { "job": 78841500089, "time": 102, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "7330165159" }, { "job": 78841500224, "time": 124, "config": "windows-devel", "r": "4.7.0", "check": "NOTE", "artifact": "7330172326" }, { "job": 78841500067, "time": 92, "config": "windows-oldrel", "r": "4.5.3", "check": "NOTE", "artifact": "7330161784" }, { "job": 78841500169, "time": 110, "config": "windows-release", "r": "4.6.0", "check": "NOTE", "artifact": "7330168273" } ], "_buildurl": "https://github.com/r-universe/wbelzak/actions/runs/26751668593", "_status": "success", "_host": "GitHub-Actions", "_upstream": "https://github.com/wbelzak/regdif", "_commit": { "id": "36e567d1910f46cfe4c5fadeacff7aa8f546afb0", "author": "William Belzak ", "committer": "William Belzak ", "message": "update for cran\n", "time": 1672062609 }, "_maintainer": { "name": "William Belzak", "email": "wbelzak@gmail.com", "login": "wbelzak", "description": "Staff Measurement Scientist @ Duolingo", "uuid": 46690494 }, "_registered": true, "_dependencies": [ { "package": "stats", "version": "> 3.0.0", "role": "Imports" }, { "package": "utils", "role": "Imports" }, { "package": "statmod", "role": "Imports" }, { "package": "parallel", "role": "Imports" }, { "package": "foreach", "role": "Imports" }, { "package": "knitr", "role": "Suggests" }, { "package": "testthat", "version": ">= 2.1.0", "role": "Suggests" }, { "package": "covr", "role": "Suggests" }, { "package": "rmarkdown", "role": "Suggests" } ], "_owner": "wbelzak", "_selfowned": true, "_usedby": 0, "_updates": [], "_tags": [], "_topics": [ "dif", "irt", "regularization" ], "_stars": 1, "_contributors": [ { "user": "wbelzak", "count": 401, "uuid": 46690494 } ], "_userbio": { "uuid": 46690494, "type": "user", "name": "William Belzak", "description": "Staff Measurement Scientist @ Duolingo" }, "_downloads": { "count": 152, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/regDIF" }, "_devurl": "https://github.com/wbelzak/regdif", "_searchresults": 13, "_rbuild": "4.6.0", "_assets": [ "extra/citation.cff", "extra/citation.html", "extra/citation.json", "extra/citation.txt", "extra/contents.json", "extra/NEWS.html", "extra/NEWS.txt", "extra/readme.html", "extra/readme.md", "extra/regDIF.html", "manual.pdf" ], "_homeurl": "https://github.com/wbelzak/regdif", "_realowner": "wbelzak", "_cranurl": true, "_releases": [ { "version": "1.0.0", "date": "2021-06-22" }, { "version": "1.1.0", "date": "2023-01-05" }, { "version": "1.1.1", "date": "2024-02-23" } ], "_exports": [ "regDIF" ], "_datasets": [ { "name": "ida", "title": "Simulated data example with multiple DIF covariates", "object": "ida", "class": [ "data.frame" ], "fields": [ "item1", "item2", "item3", "item4", "item5", "item6", "age", "gender", "study" ], "rows": 500, "table": true, "tojson": true } ], "_help": [ { "page": "regDIF-package", "title": "Regularized differential item functioning for IRT and CFA models.", "topics": [ "regDIF-package" ] }, { "page": "coef.regDIF", "title": "Coefficient function for regDIF function", "topics": [ "coef.regDIF" ] }, { "page": "ida", "title": "Simulated data example with multiple DIF covariates", "topics": [ "ida" ] }, { "page": "plot.regDIF", "title": "Plot function for regDIF function", "topics": [ "plot.regDIF" ] }, { "page": "print.regDIF", "title": "Print function for regDIF function", "topics": [ "print.regDIF" ] }, { "page": "regDIF", "title": "Regularized Differential Item Functioning", "topics": [ "regDIF" ] }, { "page": "summary.regDIF", "title": "Summary function for regDIF function", "topics": [ "summary.regDIF" ] } ], "_readme": "https://github.com/wbelzak/regdif/raw/HEAD/README.md", "_rundeps": [ "codetools", "foreach", "iterators", "statmod" ], "_vignettes": [ { "source": "regdif_vignette.Rmd", "filename": "regdif_vignette.html", "title": "Getting started with regDIF", "engine": "knitr::rmarkdown", "headings": [ "Using LASSO regularization to evaluate measurement bias in a 2-parameter logistic IRT model.", "More modeling possibilities with regDIF." ], "created": "2020-04-03 22:52:08", "modified": "2022-12-20 15:16:50", "commits": 27 } ], "_score": 3.8129133566428557, "_indexed": true, "_nocasepkg": "regdif", "_universes": [ "wbelzak" ], "_binaries": [ { "r": "4.6.0", "os": "linux", "version": "1.1.0", "date": "2026-05-02T06:12:00.000Z", "distro": "noble", "arch": "aarch64", "commit": "36e567d1910f46cfe4c5fadeacff7aa8f546afb0", "fileid": "e6dbef8ba34fe05ad4596003d9a727d1450f9c334eaa600f58f7dc9bae39b803", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/wbelzak/actions/runs/25245448963" }, { "r": "4.7.0", "os": "linux", "version": "1.1.0", "date": "2026-06-01T11:23:53.000Z", "distro": "noble", "arch": "aarch64", "commit": "36e567d1910f46cfe4c5fadeacff7aa8f546afb0", "fileid": "9936b0ad8d25062dac3d56a50bd52fc7616536a151d807926f8f23ffeaf906b6", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/wbelzak/actions/runs/26751668593" }, { "r": "4.7.0", "os": "linux", "version": "1.1.0", "date": "2026-06-01T11:24:00.000Z", "distro": "noble", "arch": "x86_64", "commit": "36e567d1910f46cfe4c5fadeacff7aa8f546afb0", "fileid": "d36448a5ae16ca8996219f765e9e2e6c94843f382c2321d504ea607e7ca92df4", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/wbelzak/actions/runs/26751668593" }, { "r": "4.6.0", "os": "linux", "version": "1.1.0", "date": "2026-06-01T11:23:55.000Z", "distro": "noble", "arch": "x86_64", "commit": "36e567d1910f46cfe4c5fadeacff7aa8f546afb0", "fileid": "80cd5790f3cf1998b9cf8eac77a3118170e373581db7e72c64538c18cfb584a4", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/wbelzak/actions/runs/26751668593" }, { "r": "4.5.3", "os": "mac", "version": "1.1.0", "date": "2026-06-01T11:24:29.000Z", "arch": "aarch64", "commit": "36e567d1910f46cfe4c5fadeacff7aa8f546afb0", "fileid": "862d739ebe85183f85b42cc0dc71ec1ec2b8c6a103684ba105658dd275171139", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/wbelzak/actions/runs/26751668593" }, { "r": "4.5.3", "os": "mac", "version": "1.1.0", "date": "2026-06-01T11:26:02.000Z", "arch": "x86_64", "commit": "36e567d1910f46cfe4c5fadeacff7aa8f546afb0", "fileid": "8ee0e102049ce295e07cb940ab0831202bd14774d16209fd22182fbf3b38c1c6", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/wbelzak/actions/runs/26751668593" }, { "r": "4.6.0", "os": "mac", "version": "1.1.0", "date": "2026-06-01T11:24:12.000Z", "arch": "aarch64", "commit": "36e567d1910f46cfe4c5fadeacff7aa8f546afb0", "fileid": "075d7141baf07057e2737f3b7f09742afa36d8e032d02eb65152f29b80ec9660", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/wbelzak/actions/runs/26751668593" }, { "r": "4.6.0", "os": "mac", "version": "1.1.0", "date": "2026-06-01T11:25:32.000Z", "arch": "x86_64", "commit": "36e567d1910f46cfe4c5fadeacff7aa8f546afb0", "fileid": "77873b5e61f1ebd28e685a3d8d306a91dd452a42351c30be14f94d5cdc42e60c", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/wbelzak/actions/runs/26751668593" }, { "r": "4.6.0", "os": "wasm", "version": "1.1.0", "date": "2026-06-01T11:23:56.000Z", "arch": "emscripten", "commit": "36e567d1910f46cfe4c5fadeacff7aa8f546afb0", "fileid": "00217c4768ba5bb3f97ab7cf8be286ae8fba1ecdfe76248e78bf4d9564ffee15", "status": "success", "buildurl": "https://github.com/r-universe/wbelzak/actions/runs/26751668593" }, { "r": "4.7.0", "os": "win", "version": "1.1.0", "date": "2026-06-01T11:23:21.000Z", "arch": "x86_64", "commit": "36e567d1910f46cfe4c5fadeacff7aa8f546afb0", "fileid": "abba15bbaba6073ad1bdfd724625db955a9edcf65fdae4821cb8ff3e2da62d17", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/wbelzak/actions/runs/26751668593" }, { "r": "4.5.3", "os": "win", "version": "1.1.0", "date": "2026-06-01T11:23:10.000Z", "arch": "x86_64", "commit": "36e567d1910f46cfe4c5fadeacff7aa8f546afb0", "fileid": "ace76f6f77ca0742f09c6ff12f77ace179158af820dd995fef614b8a64d4b39b", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/wbelzak/actions/runs/26751668593" }, { "r": "4.6.0", "os": "win", "version": "1.1.0", "date": "2026-06-01T11:23:28.000Z", "arch": "x86_64", "commit": "36e567d1910f46cfe4c5fadeacff7aa8f546afb0", "fileid": "039e046ca75fd58888c8d2820c03d94882a57e7a811560b90391062f1ed55569", "status": "success", "check": "NOTE", "buildurl": "https://github.com/r-universe/wbelzak/actions/runs/26751668593" } ] }