{
  "_id": "6abe13ed99f7aa8c6aa51b4e",
  "Package": "fastdid",
  "Type": "Package",
  "Title": "Fast Staggered Difference-in-Difference Estimators",
  "Version": "1.0.7",
  "Date": "2026-04-29",
  "Authors@R": "c(\nperson(\"Lin-Tung\",\"Tsai\",\nrole = c(\"aut\", \"cre\", \"cph\"),\nemail = \"tsaidondon@gmail.com\"),\nperson(given = \"Maxwell\",\nfamily = \"Kellogg\",\nrole = \"ctb\"),\nperson(given = \"Kuan-Ju\",\nfamily = \"Tseng\",\nrole = \"ctb\"))",
  "Maintainer": "Lin-Tung Tsai <tsaidondon@gmail.com>",
  "Description": "A fast and flexible implementation of Callaway and\nSant'Anna's (2021)<doi:10.1016/j.jeconom.2020.12.001> staggered\nDifference-in-Differences (DiD) estimators, 'fastdid' reduces\nthe computation time from hours to seconds, and incorporates\nextensions such as time-varying covariates and multiple events.",
  "License": "MIT + file LICENSE",
  "Encoding": "UTF-8",
  "RoxygenNote": "7.3.3",
  "URL": "https://github.com/TsaiLintung/fastdid,\nhttps://tsailintung.github.io/fastdid/",
  "BugReports": "https://github.com/TsaiLintung/fastdid/issues",
  "VignetteBuilder": "knitr",
  "Config/pak/sysreqs": "libicu-dev",
  "Repository": "https://tsailintung.r-universe.dev",
  "Date/Publication": "2026-09-01 02:13:47 UTC",
  "RemoteUrl": "https://github.com/tsailintung/fastdid",
  "RemoteRef": "HEAD",
  "RemoteSha": "403307a6a990321c747772aa2d690177b75b6ab3",
  "NeedsCompilation": "no",
  "Packaged": {
    "Date": "2026-10-01 07:54:34 UTC",
    "User": "root"
  },
  "Author": "Lin-Tung Tsai [aut, cre, cph],\nMaxwell Kellogg [ctb],\nKuan-Ju Tseng [ctb]",
  "_user": "tsailintung",
  "_type": "src",
  "_file": "fastdid_1.0.7.tar.gz",
  "_fileid": "https://r2.ropensci.org/bbffb3175056d66cd861e764d3437e6653abc765bf90ba6c7bfdf529b77745a9",
  "_filesize": 474978,
  "_sha256": "bbffb3175056d66cd861e764d3437e6653abc765bf90ba6c7bfdf529b77745a9",
  "_expires": "2027-01-09T08:03:54.000Z",
  "_created": "2026-10-01T07:54:34.000Z",
  "_published": "2026-10-01T08:03:56.907Z",
  "_jobs": [
    {
      "job": 110274076322,
      "time": 380,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "NOTE",
      "artifact": "11147514685"
    },
    {
      "job": 110274076367,
      "time": 395,
      "config": "linux-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11148048990"
    },
    {
      "job": 110274076454,
      "time": 388,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "11148067780"
    },
    {
      "job": 110274076393,
      "time": 384,
      "config": "macos-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11148560505"
    },
    {
      "job": 110272897834,
      "time": 222,
      "config": "source",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11147643251"
    },
    {
      "job": 110274076330,
      "time": 168,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "11147603930"
    },
    {
      "job": 110274076476,
      "time": 299,
      "config": "windows-devel-x86_64",
      "r": "4.7.0",
      "check": "NOTE",
      "artifact": "11148387783"
    },
    {
      "job": 110274076448,
      "time": 318,
      "config": "windows-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "11147374909"
    },
    {
      "job": 110274076490,
      "time": 237,
      "config": "windows-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11148362716"
    }
  ],
  "_host": "GitHub-Actions",
  "_buildurl": "https://github.com/r-universe/tsailintung/actions/runs/36832721967",
  "_status": "success",
  "_upstream": "https://github.com/tsailintung/fastdid",
  "_commit": {
    "id": "403307a6a990321c747772aa2d690177b75b6ab3",
    "author": "Lin-Tung Tsai <101155567+TsaiLintung@users.noreply.github.com>",
    "committer": "Lin-Tung Tsai <101155567+TsaiLintung@users.noreply.github.com>",
    "message": "fix double DiD coverage: small-group variance, weight influence, control sets\n\n- inflate the 2x2 residual influence by the Kish effective size; skip cells\n  with fewer than 2 effective units in a group, with one warning per call\n- signed, per-period weight influence for the double DiD second stage\n- correct case-3 control sets for M >= 3, anticipation2 horizons, and\n  validation of the confounding cohort columns\n- Monte-Carlo coverage of the 95% CI is now ~0.95 (was ~0.90)\n\nCo-Authored-By: Claude Fable 5 <noreply@anthropic.com>\n",
    "time": 1788228827
  },
  "_maintainer": {
    "name": "Lin-Tung Tsai",
    "email": "tsaidondon@gmail.com",
    "login": "tsailintung",
    "description": "Economics PhD Student at UC Berkeley",
    "uuid": 101155567
  },
  "_distro": "resolute",
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 4.1.0",
      "role": "Depends"
    },
    {
      "package": "data.table",
      "version": ">= 1.15.0",
      "role": "Imports"
    },
    {
      "package": "stringr",
      "role": "Imports"
    },
    {
      "package": "BMisc",
      "role": "Imports"
    },
    {
      "package": "collapse",
      "role": "Imports"
    },
    {
      "package": "dreamerr",
      "version": ">= 1.4.0",
      "role": "Imports"
    },
    {
      "package": "parglm",
      "role": "Imports"
    },
    {
      "package": "ggplot2",
      "role": "Imports"
    },
    {
      "package": "did",
      "role": "Suggests"
    },
    {
      "package": "knitr",
      "role": "Suggests"
    },
    {
      "package": "parallel",
      "role": "Suggests"
    },
    {
      "package": "rmarkdown",
      "role": "Suggests"
    },
    {
      "package": "tinytest",
      "role": "Suggests"
    }
  ],
  "_owner": "tsailintung",
  "_selfowned": true,
  "_usedby": 0,
  "_updates": [
    {
      "week": "2026-01",
      "n": 1
    },
    {
      "week": "2026-18",
      "n": 1
    },
    {
      "week": "2026-27",
      "n": 1
    },
    {
      "week": "2026-34",
      "n": 3
    },
    {
      "week": "2026-36",
      "n": 1
    }
  ],
  "_tags": [],
  "_topics": [
    "difference-in-differences",
    "event-study",
    "staggered-did"
  ],
  "_stars": 32,
  "_contributors": [
    {
      "user": "tsailintung",
      "count": 274,
      "uuid": 101155567
    }
  ],
  "_userbio": {
    "uuid": 101155567,
    "type": "user",
    "name": "Lin-Tung Tsai",
    "followers": 15,
    "description": "Economics PhD Student at UC Berkeley"
  },
  "_downloads": {
    "count": 291,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/fastdid"
  },
  "_devurl": "https://github.com/tsailintung/fastdid",
  "_pkgdown": "https://tsailintung.github.io/fastdid/",
  "_searchresults": 8,
  "_rbuild": "4.6.1",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/fastdid.html",
    "extra/manual.pdf",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md",
    "LICENSE"
  ],
  "_homeurl": "https://github.com/tsailintung/fastdid",
  "_realowner": "tsailintung",
  "_cranurl": true,
  "_releases": [
    {
      "version": "1.0.2",
      "date": "2024-10-28"
    },
    {
      "version": "1.0.3",
      "date": "2024-11-04"
    },
    {
      "version": "1.0.5",
      "date": "2025-06-23"
    },
    {
      "version": "1.0.6",
      "date": "2026-01-15"
    }
  ],
  "_exports": [
    "fastdid",
    "plot_did_dynamics",
    "sim_did"
  ],
  "_help": [
    {
      "page": "fastdid",
      "title": "Fast Staggered DID Estimation",
      "topics": [
        "fastdid"
      ]
    },
    {
      "page": "plot_did_dynamics",
      "title": "Plot event study",
      "topics": [
        "plot_did_dynamics"
      ]
    },
    {
      "page": "sim_did",
      "title": "Simulate a Difference-in-Differences (DiD) dataset",
      "topics": [
        "sim_did"
      ]
    }
  ],
  "_readme": "https://github.com/tsailintung/fastdid/raw/HEAD/README.md",
  "_rundeps": [
    "BMisc",
    "cli",
    "collapse",
    "cpp11",
    "data.table",
    "dreamerr",
    "farver",
    "Formula",
    "ggplot2",
    "glue",
    "gtable",
    "isoband",
    "labeling",
    "lattice",
    "lifecycle",
    "magrittr",
    "Matrix",
    "parallelly",
    "parglm",
    "R6",
    "RColorBrewer",
    "Rcpp",
    "RcppArmadillo",
    "rlang",
    "S7",
    "scales",
    "stringi",
    "stringmagic",
    "stringr",
    "vctrs",
    "viridisLite",
    "withr"
  ],
  "_vignettes": [
    {
      "source": "double.Rmd",
      "filename": "double.html",
      "title": "Introduction to Double DiD",
      "engine": "knitr::rmarkdown",
      "headings": [],
      "created": "2024-09-08 19:00:21",
      "modified": "2024-10-30 22:18:47",
      "commits": 4
    },
    {
      "source": "misc.Rmd",
      "filename": "misc.html",
      "title": "Miscellaneous Topics",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Performance",
        "Validitiy",
        "Basics: comparison with did",
        "Extensions: coverage test",
        "Experimental Features: not tested",
        "Comparison with did",
        "Estimator",
        "Interface",
        "Other"
      ],
      "created": "2024-09-08 19:00:21",
      "modified": "2024-10-30 22:18:47",
      "commits": 3
    }
  ],
  "_score": 6.204119982655925,
  "_indexed": true,
  "_nocasepkg": "fastdid",
  "_universes": [
    "tsailintung"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.0.7",
      "date": "2026-10-01T07:57:34.000Z",
      "distro": "resolute",
      "commit": "403307a6a990321c747772aa2d690177b75b6ab3",
      "fileid": "https://r2.ropensci.org/647bfed06c90a24d168292048ddf22f5008759fa035a125f045602a1ae8e295e",
      "status": "success",
      "check": "NOTE",
      "buildurl": "https://github.com/r-universe/tsailintung/actions/runs/36832721967"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "1.0.7",
      "date": "2026-10-01T07:57:55.000Z",
      "distro": "resolute",
      "commit": "403307a6a990321c747772aa2d690177b75b6ab3",
      "fileid": "https://r2.ropensci.org/06760b0c97b41a43ae5ea0f66a2b2d489eac9ec8ee9bb48694bd9341273b589c",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/tsailintung/actions/runs/36832721967"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.0.7",
      "date": "2026-10-01T07:59:26.000Z",
      "commit": "403307a6a990321c747772aa2d690177b75b6ab3",
      "fileid": "https://r2.ropensci.org/7eb50079614d47ae3636998e1d2af3f8fd1f2c20991c060c833b74f0a3c8c50e",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/tsailintung/actions/runs/36832721967"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "1.0.7",
      "date": "2026-10-01T07:59:17.000Z",
      "commit": "403307a6a990321c747772aa2d690177b75b6ab3",
      "fileid": "https://r2.ropensci.org/a013a6559c144c5e25f50d45e15de46afffff7cee6c7779d82076e2e614bbebc",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/tsailintung/actions/runs/36832721967"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "1.0.7",
      "date": "2026-10-01T07:57:40.000Z",
      "commit": "403307a6a990321c747772aa2d690177b75b6ab3",
      "fileid": "https://r2.ropensci.org/502b8ef74e8a9a430a2e65c5a3794bb5c8436b10d6ac9184e83d279e617084cf",
      "status": "success",
      "buildurl": "https://github.com/r-universe/tsailintung/actions/runs/36832721967"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "1.0.7",
      "date": "2026-10-01T07:55:57.000Z",
      "commit": "403307a6a990321c747772aa2d690177b75b6ab3",
      "fileid": "https://r2.ropensci.org/906dba1884404e0e2408cb80b2df2f61881701f25dc86553a5d39c644985cbd2",
      "status": "success",
      "check": "NOTE",
      "buildurl": "https://github.com/r-universe/tsailintung/actions/runs/36832721967"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "1.0.7",
      "date": "2026-10-01T07:56:02.000Z",
      "commit": "403307a6a990321c747772aa2d690177b75b6ab3",
      "fileid": "https://r2.ropensci.org/b4766c08d9a6ad893189f90587f185375d1fcb806d4b4ad62586f1b9b4972efa",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/tsailintung/actions/runs/36832721967"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "1.0.7",
      "date": "2026-10-01T07:55:46.000Z",
      "commit": "403307a6a990321c747772aa2d690177b75b6ab3",
      "fileid": "https://r2.ropensci.org/a7edf2976b463f6fbb07381eabbdf63cd82ae7a870c4813d3ca7ef94f4f9ecc4",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/tsailintung/actions/runs/36832721967"
    }
  ]
}