{
  "_id": "6ad1c99dd3c80a766859befb",
  "Package": "swdpwr",
  "Type": "Package",
  "Title": "Power Calculation for Stepped Wedge Cluster Randomized Trials",
  "Version": "1.12",
  "Date": "2026-05-14",
  "Authors@R": "c(person(given = \"Jiachen\",\nfamily = \"Chen\",\nrole = c(\"cre\", \"aut\"),\nemail = \"jiachen.chen322@gmail.com\"),\nperson(given = \"Xin\",\nfamily = \"Zhou\",\nrole = \"aut\"),\nperson(given = \"Fan\",\nfamily = \"Li\",\nrole = \"aut\"),\nperson(given = \"Donna\",\nfamily = \"Spiegelman.\",\nrole = \"aut\"))",
  "Maintainer": "Jiachen Chen <jiachen.chen322@gmail.com>",
  "Description": "To meet the needs of statistical power calculation for\nstepped wedge cluster randomized trials, we developed this\nsoftware. Different parameters can be specified by users for\ndifferent scenarios, including: cross-sectional and cohort\ndesigns, binary and continuous outcomes, marginal (GEE) and\nconditional models (mixed effects model), three link functions\n(identity, log, logit links), with and without time effects\n(the default specification assumes no-time-effect) under\nexchangeable, nested exchangeable and block exchangeable\ncorrelation structures. Unequal numbers of clusters per\nsequence are also allowed. The methods included in this\npackage: Zhou et al. (2020) <doi:10.1093/biostatistics/kxy031>,\nLi et al. (2018) <doi:10.1111/biom.12918>. Supplementary\ndocuments can be found at:\n<https://ysph.yale.edu/cmips/research/software/study-design-power-calculation/swdpwr/>.\nThe Shiny app for swdpwr can be accessed at:\n<https://jiachenchen322.shinyapps.io/swdpwr_shinyapp/>. The\npackage also includes functions that perform calculations for\nthe intra-cluster correlation coefficients based on the random\neffects variances as input variables for continuous and binary\noutcomes, respectively.",
  "License": "GPL-3",
  "Encoding": "UTF-8",
  "NeedsCompilation": "yes",
  "RoxygenNote": "7.2.3",
  "Packaged": {
    "Date": "2026-10-16 06:34:17 UTC",
    "User": "root"
  },
  "Author": "Jiachen Chen [cre, aut], Xin Zhou [aut], Fan Li [aut], Donna\nSpiegelman. [aut]",
  "Repository": "https://jiachenchen322.r-universe.dev",
  "Date/Publication": "2026-05-14 18:13:44 UTC",
  "RemoteUrl": "https://github.com/cran/swdpwr",
  "RemoteRef": "HEAD",
  "RemoteSha": "a9628426cac2222006e383d668bf9fd5db72494f",
  "_user": "jiachenchen322",
  "_type": "src",
  "_file": "swdpwr_1.12.tar.gz",
  "_fileid": "https://r2.ropensci.org/d538c1f991034b41bb7b9764c673c714f4cc7db9e57dc974894900927a6a63da",
  "_filesize": 152535,
  "_sha256": "d538c1f991034b41bb7b9764c673c714f4cc7db9e57dc974894900927a6a63da",
  "_expires": "2027-01-24T06:52:11.000Z",
  "_created": "2026-10-16T06:34:17.000Z",
  "_published": "2026-10-16T06:52:13.187Z",
  "_buildurl": "https://github.com/r-universe/jiachenchen322/actions/runs/38861719794",
  "_status": "success",
  "_host": "GitHub-Actions",
  "_jobs": [
    {
      "job": 116846198323,
      "time": 126,
      "config": "linux-devel-arm64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12029681778"
    },
    {
      "job": 116846198411,
      "time": 107,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12029382601"
    },
    {
      "job": 116846198364,
      "time": 125,
      "config": "linux-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12029547153"
    },
    {
      "job": 116846198320,
      "time": 122,
      "config": "linux-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12030120209"
    },
    {
      "job": 116846198448,
      "time": 126,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "12029983927"
    },
    {
      "job": 116846198348,
      "time": 299,
      "config": "macos-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "12029526805"
    },
    {
      "job": 116846198321,
      "time": 118,
      "config": "macos-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12030221181"
    },
    {
      "job": 116846198397,
      "time": 230,
      "config": "macos-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12030311213"
    },
    {
      "job": 116845360591,
      "time": 161,
      "config": "source",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12029835565"
    },
    {
      "job": 116846198293,
      "time": 87,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "12029890614"
    },
    {
      "job": 116846198359,
      "time": 361,
      "config": "windows-devel-arm64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12030146313"
    },
    {
      "job": 116846198339,
      "time": 141,
      "config": "windows-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12029561161"
    },
    {
      "job": 116846198311,
      "time": 102,
      "config": "windows-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "12029506257"
    },
    {
      "job": 116846198337,
      "time": 326,
      "config": "windows-release-arm64",
      "r": "4.6.1",
      "check": "WARNING",
      "artifact": "12030400399"
    },
    {
      "job": 116846198281,
      "time": 119,
      "config": "windows-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12029855749"
    }
  ],
  "_upstream": "https://github.com/cran/swdpwr",
  "_commit": {
    "id": "a9628426cac2222006e383d668bf9fd5db72494f",
    "author": "Jiachen Chen <jiachen.chen322@gmail.com>",
    "committer": "cran-robot <csardi.gabor+cran@gmail.com>",
    "message": "version 1.12\n",
    "time": 1778782424
  },
  "_maintainer": {
    "name": "Jiachen Chen",
    "email": "jiachen.chen322@gmail.com",
    "login": "jiachenchen322",
    "twitter": "@jiachenchencjc",
    "description": "Assistant Professor in Bioinformatics and Biostatistics at the University of Louisville",
    "uuid": 51219243
  },
  "_distro": "resolute",
  "_registered": true,
  "_dependencies": [
    {
      "package": "spatstat.random",
      "role": "Imports"
    }
  ],
  "_owner": "cran",
  "_selfowned": true,
  "_usedby": 0,
  "_updates": [
    {
      "week": "2026-20",
      "n": 1
    }
  ],
  "_tags": [
    {
      "name": "1.12",
      "date": "2026-05-14"
    }
  ],
  "_stars": 0,
  "_contributors": [
    {
      "user": "jiachenchen322",
      "count": 11,
      "uuid": 51219243
    }
  ],
  "_userbio": {
    "uuid": 51219243,
    "type": "user",
    "name": "Jiachen Chen",
    "followers": 2,
    "description": "Assistant Professor in Bioinformatics and Biostatistics at the University of Louisville"
  },
  "_downloads": {
    "count": 411,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/swdpwr"
  },
  "_searchresults": 10,
  "_topics": [
    "fortran",
    "glibc"
  ],
  "_rbuild": "4.6.1",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/manual.pdf",
    "extra/swdpwr.html"
  ],
  "_realowner": "jiachenchen322",
  "_cranurl": false,
  "_releases": [
    {
      "version": "1.1",
      "date": "2020-10-26"
    },
    {
      "version": "1.3",
      "date": "2020-10-31"
    },
    {
      "version": "1.4",
      "date": "2020-11-07"
    },
    {
      "version": "1.5",
      "date": "2021-05-16"
    },
    {
      "version": "1.6",
      "date": "2021-10-11"
    },
    {
      "version": "1.7",
      "date": "2022-02-20"
    },
    {
      "version": "1.8",
      "date": "2023-09-08"
    },
    {
      "version": "1.9",
      "date": "2023-09-28"
    },
    {
      "version": "1.10",
      "date": "2024-09-30"
    },
    {
      "version": "1.11",
      "date": "2024-10-08"
    },
    {
      "version": "1.12",
      "date": "2026-05-14"
    }
  ],
  "_exports": [
    "BinICC",
    "ContICC",
    "swdpower"
  ],
  "_help": [
    {
      "page": "swdpwr-package",
      "title": "Power Calculation for Stepped Wedge Cluster Randomized Trials",
      "topics": [
        "swdpwr-package",
        "swdpwr"
      ]
    },
    {
      "page": "BinICC",
      "title": "A function for calculating the intracluster correlation coefficient (ICC) for binary outcomes given the cluster level random effects variance",
      "topics": [
        "BinICC"
      ]
    },
    {
      "page": "ContICC",
      "title": "A function for calculating ICCs for continuous outcomes given random effects variances",
      "topics": [
        "ContICC"
      ]
    },
    {
      "page": "print.swdpower",
      "title": "Print the results of swdpower",
      "topics": [
        "print.swdpower"
      ]
    },
    {
      "page": "swdpower",
      "title": "A function of power calculation for Stepped Wedge Design Studies",
      "topics": [
        "swdpower"
      ]
    }
  ],
  "_rundeps": [
    "abind",
    "deldir",
    "lattice",
    "Matrix",
    "polyclip",
    "spatstat.data",
    "spatstat.geom",
    "spatstat.random",
    "spatstat.sparse",
    "spatstat.univar",
    "spatstat.utils",
    "tensor"
  ],
  "_sysdeps": [
    {
      "shlib": "libgfortran",
      "package": "libgfortran5",
      "source": "gcc",
      "version": "16-20260322-1ubuntu1",
      "name": "fortran",
      "homepage": "http://gcc.gnu.org/",
      "description": "Runtime library for GNU Fortran applications"
    },
    {
      "shlib": "libmvec",
      "package": "libc6",
      "headers": "libc6-dev",
      "source": "glibc",
      "version": "2.43-2ubuntu2.4",
      "name": "glibc",
      "homepage": "https://www.gnu.org/software/libc/libc.html",
      "description": "GNU C Library: Shared libraries"
    }
  ],
  "_score": 1,
  "_indexed": true,
  "_nocasepkg": "swdpwr",
  "_universes": [
    "jiachenchen322"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.12",
      "date": "2026-10-16T06:36:15.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "a9628426cac2222006e383d668bf9fd5db72494f",
      "fileid": "https://r2.ropensci.org/6b1d1308cc80331b46bea0366a2a46c4d6fb31aa101da52f859bd6239d98fa5c",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/jiachenchen322/actions/runs/38861719794"
    },
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.12",
      "date": "2026-10-16T06:36:09.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "a9628426cac2222006e383d668bf9fd5db72494f",
      "fileid": "https://r2.ropensci.org/a05bfecc447b4322ae24d6d3f2718340134efe14d54aeb1b074bfa3da0129e03",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/jiachenchen322/actions/runs/38861719794"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "1.12",
      "date": "2026-10-16T06:36:27.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "a9628426cac2222006e383d668bf9fd5db72494f",
      "fileid": "https://r2.ropensci.org/5016a884d412f15270a45b9f0c0c42c52b0505504cc040912e17334d715fd5ae",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/jiachenchen322/actions/runs/38861719794"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "1.12",
      "date": "2026-10-16T06:36:14.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "a9628426cac2222006e383d668bf9fd5db72494f",
      "fileid": "https://r2.ropensci.org/8f7cdc0661322a4849ca0178577061446c7f26d1c30c3967acedaf0f71c0f830",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/jiachenchen322/actions/runs/38861719794"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.12",
      "date": "2026-10-16T06:51:11.000Z",
      "arch": "aarch64",
      "commit": "a9628426cac2222006e383d668bf9fd5db72494f",
      "fileid": "https://r2.ropensci.org/024d31e15eafbbec3a94cb47ea880f1826d73f4da79bf5ce6f38ea318d3ed211",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/jiachenchen322/actions/runs/38861719794"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.12",
      "date": "2026-10-16T06:40:06.000Z",
      "arch": "x86_64",
      "commit": "a9628426cac2222006e383d668bf9fd5db72494f",
      "fileid": "https://r2.ropensci.org/298c3ebfa5687467e55e43c9a97d0430a3b20407fcb9e1515f67773b92d6ea4f",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/jiachenchen322/actions/runs/38861719794"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "1.12",
      "date": "2026-10-16T06:44:37.000Z",
      "arch": "aarch64",
      "commit": "a9628426cac2222006e383d668bf9fd5db72494f",
      "fileid": "https://r2.ropensci.org/db68dff362cf2e79474b3f35992c21ea5dd78e2bc51878873cbfdb60660e1718",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/jiachenchen322/actions/runs/38861719794"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "1.12",
      "date": "2026-10-16T06:40:48.000Z",
      "arch": "x86_64",
      "commit": "a9628426cac2222006e383d668bf9fd5db72494f",
      "fileid": "https://r2.ropensci.org/2f103e1943adacc7d1565488eb92693ce083e6c937cf52632a3db4e31a797b14",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/jiachenchen322/actions/runs/38861719794"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "1.12",
      "date": "2026-10-16T06:36:08.000Z",
      "arch": "emscripten",
      "commit": "a9628426cac2222006e383d668bf9fd5db72494f",
      "fileid": "https://r2.ropensci.org/ee98c9f75f8a000135b489c8d18d46bcfcfd38366d01d95fedc00d3f9196a607",
      "status": "success",
      "buildurl": "https://github.com/r-universe/jiachenchen322/actions/runs/38861719794"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "1.12",
      "date": "2026-10-16T06:39:35.000Z",
      "arch": "aarch64",
      "commit": "a9628426cac2222006e383d668bf9fd5db72494f",
      "fileid": "https://r2.ropensci.org/dc91640579f7748d0b56c448741f0dd37be7497b7381bc4b0fc1ad0d2bd840d1",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/jiachenchen322/actions/runs/38861719794"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "1.12",
      "date": "2026-10-16T06:35:34.000Z",
      "arch": "x86_64",
      "commit": "a9628426cac2222006e383d668bf9fd5db72494f",
      "fileid": "https://r2.ropensci.org/65eec1a31aee0c68c6781a37232f464cfc8c193addec9eac49ce11fd4824989d",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/jiachenchen322/actions/runs/38861719794"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "1.12",
      "date": "2026-10-16T06:35:33.000Z",
      "arch": "x86_64",
      "commit": "a9628426cac2222006e383d668bf9fd5db72494f",
      "fileid": "https://r2.ropensci.org/069dd30fd9a5987d9655dc36f44e496a8085a204868bd1acb180af55513631a6",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/jiachenchen322/actions/runs/38861719794"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "1.12",
      "date": "2026-10-16T06:38:55.000Z",
      "arch": "aarch64",
      "commit": "a9628426cac2222006e383d668bf9fd5db72494f",
      "fileid": "https://r2.ropensci.org/78c5e81d296d0979a98556a7571760cb31580180dddba466a3cb8f788529aee0",
      "status": "success",
      "check": "WARNING",
      "buildurl": "https://github.com/r-universe/jiachenchen322/actions/runs/38861719794"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "1.12",
      "date": "2026-10-16T06:35:41.000Z",
      "arch": "x86_64",
      "commit": "a9628426cac2222006e383d668bf9fd5db72494f",
      "fileid": "https://r2.ropensci.org/339cce2b2ccfa23693f612a1354db1e19b524c80aa36976ce10ece70b4e0f21b",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/jiachenchen322/actions/runs/38861719794"
    }
  ]
}