{ "_id": "6a2d17593efcd9bda42f3a7d", "Package": "cem", "Type": "Package", "Title": "Coarsened Exact Matching", "Version": "1.1.31", "Authors@R": "c(person(\"Stefano M.\", \"Iacus\", email = \"siacus@iq.harvard.edu\", role = c(\"aut\", \"cre\")),\nperson(\"Gary\", \"King\", email = \"king@harvard.edu\", role = c(\"aut\")),\nperson(\"Giuseppe\", \"Porro\", email = \"giuseppe.porro@uninsubria.it\", role = c(\"aut\")),\nperson(\"Richard\", \"Nielsen\", email = \"rnielsen@mit.edu\", role = c(\"aut\"))\n)", "Maintainer": "Stefano M. Iacus ", "Description": "Implementation of the Coarsened Exact Matching algorithm\ndiscussed along with its properties in Iacus, King, Porro\n(2011) ; Iacus, King, Porro\n(2012) and Iacus, King, Porro (2019)\n.", "License": "GPL-2", "URL": "https://gking.harvard.edu/cem", "NeedsCompilation": "no", "Packaged": { "Date": "2026-06-13 08:36:10 UTC", "User": "root" }, "Author": "Stefano M. Iacus [aut, cre], Gary King [aut], Giuseppe Porro\n[aut], Richard Nielsen [aut]", "Repository": "https://siacus.r-universe.dev", "Date/Publication": "2022-09-08 15:12:55 UTC", "RemoteUrl": "https://github.com/cran/cem", "RemoteRef": "HEAD", "RemoteSha": "96ad772be164fa896d0c6026eae427cf0d2519ee", "MD5sum": "daefbb454255ce52ae91c546b77e9a5c", "_user": "siacus", "_type": "src", "_file": "cem_1.1.31.tar.gz", "_fileid": "8fb958b148df15243c7b56d3e8b985787014785d3effe4395c36d904c1863e62", "_filesize": 697680, "_sha256": "8fb958b148df15243c7b56d3e8b985787014785d3effe4395c36d904c1863e62", "_created": "2026-06-13T08:36:10.000Z", "_published": "2026-06-13T08:39:53.264Z", "_distro": "noble", "_jobs": [ { "job": 81176950244, "time": 114, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "7609162686" }, { "job": 81176950246, "time": 130, "config": "linux-release-x86_64", "r": "4.6.0", "check": "OK", "artifact": "7609165106" }, { "job": 81176950247, "time": 101, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "OK", "artifact": "7609161225" }, { "job": 81176950251, "time": 177, "config": "macos-release-arm64", "r": "4.6.0", "check": "OK", "artifact": "7609169272" }, { "job": 81176794804, "time": 170, "config": "source", "r": "4.6.0", "check": "OK", "artifact": "7609150304" }, { "job": 81176950237, "time": 101, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "7609161123" }, { "job": 81176950240, "time": 80, "config": "windows-devel", "r": "4.7.0", "check": "OK", "artifact": "7609158946" }, { "job": 81176950253, "time": 126, "config": "windows-oldrel", "r": "4.5.3", "check": "OK", "artifact": "7609164345" }, { "job": 81176950252, "time": 81, "config": "windows-release", "r": "4.6.0", "check": "OK", "artifact": "7609159052" } ], "_buildurl": "https://github.com/r-universe/siacus/actions/runs/27461757564", "_status": "success", "_host": "GitHub-Actions", "_upstream": "https://github.com/cran/cem", "_commit": { "id": "96ad772be164fa896d0c6026eae427cf0d2519ee", "author": "Stefano M. Iacus ", "committer": "cran-robot ", "message": "version 1.1.31\n", "time": 1662649975 }, "_maintainer": { "name": "Stefano M. Iacus", "email": "siacus@iq.harvard.edu", "login": "siacus", "twitter": "@iacus", "description": "Geek, R Core Team (1999-2014), \n@LaStatale UNIMI (1999-2019), \n@EU_Commission (2019-2022) now at @IQSS at Harvard University.", "uuid": 5621970 }, "_registered": true, "_dependencies": [ { "package": "tcltk", "role": "Depends" }, { "package": "lattice", "role": "Depends" }, { "package": "MatchIt", "role": "Imports" }, { "package": "combinat", "role": "Imports" }, { "package": "randomForest", "role": "Imports" }, { "package": "nlme", "role": "Imports" }, { "package": "Amelia", "version": ">= 1.2-0", "role": "Suggests" } ], "_owner": "cran", "_selfowned": true, "_usedby": 1, "_updates": [], "_tags": [], "_stars": 2, "_contributors": [ { "user": "thegaryking", "count": 15, "uuid": 575230 }, { "user": "siacus", "count": 9, "uuid": 5621970 } ], "_userbio": { "uuid": 5621970, "type": "user", "name": "Stefano Iacus", "description": "Geek, R Core Team (1999-2014), \r\n@LaStatale UNIMI (1999-2019), \r\n@EU_Commission (2019-2022) now at @IQSS at Harvard University." }, "_downloads": { "count": 5032, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/cem" }, "_mentions": 4, "_searchresults": 233, "_rbuild": "4.6.0", "_assets": [ "extra/cem.html", "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", "manual.pdf" ], "_realowner": "siacus", "_cranurl": false, "_releases": [ { "version": "1.0.39", "date": "2008-08-20" }, { "version": "1.0.41", "date": "2008-08-20" }, { "version": "1.0.44", "date": "2008-09-02" }, { "version": "1.0.80", "date": "2008-10-30" }, { "version": "1.0.90", "date": "2009-02-18" }, { "version": "1.0.96", "date": "2009-04-14" }, { "version": "1.0.106", "date": "2009-05-13" }, { "version": "1.0.108", "date": "2009-06-02" }, { "version": "1.0.111", "date": "2009-08-31" }, { "version": "1.0.116", "date": "2009-10-20" }, { "version": "1.0.117", "date": "2009-10-21" }, { "version": "1.0.120", "date": "2009-10-21" }, { "version": "1.0.127", "date": "2009-11-04" }, { "version": "1.0.128", "date": "2009-11-08" }, { "version": "1.0.142", "date": "2009-12-24" }, { "version": "1.1.5", "date": "2013-04-04" }, { "version": "1.1.8", "date": "2014-03-19" }, { "version": "1.1.10", "date": "2014-03-25" }, { "version": "1.1.16", "date": "2015-06-04" }, { "version": "1.1.17", "date": "2015-08-19" }, { "version": "1.1.19", "date": "2018-04-12" }, { "version": "1.1.20", "date": "2020-05-08" }, { "version": "1.1.27", "date": "2020-11-09" }, { "version": "1.1.29", "date": "2021-05-28" }, { "version": "1.1.30", "date": "2022-08-06" }, { "version": "1.1.31", "date": "2022-09-08" } ], "_exports": [ "att", "cem", "cemspace", "combine.spacegraphs", "imbalance", "imbspace", "k2k", "L1.meas", "L1.profile", "pair", "pscoreSelect", "relax.cem", "relax.plot", "search.match", "shift.cem", "spacegraph" ], "_datasets": [ { "name": "DW", "title": "Dehejia-Wahba dataset", "object": "DW", "file": "DW.rda", "class": [ "data.frame" ], "fields": [ "treated", "age", "education", "black", "married", "nodegree", "re74", "re75", "re78", "hispanic", "u74", "u75" ], "rows": 445, "table": true, "tojson": true }, { "name": "LeLonde", "title": "Modified Lalonde dataset", "object": "LeLonde", "file": "LeLonde.rda", "class": [ "data.frame" ], "fields": [ "treated", "age", "education", "black", "married", "nodegree", "re74", "re75", "re78", "hispanic", "u74", "u75", "q1" ], "rows": 722, "table": true, "tojson": true }, { "name": "LL", "title": "Lalonde dataset", "object": "LL", "file": "LL.rda", "class": [ "data.frame" ], "fields": [ "treated", "age", "education", "black", "married", "nodegree", "re74", "re75", "re78", "hispanic", "u74", "u75" ], "rows": 722, "table": true, "tojson": true }, { "name": "LLvsPSID", "title": "Lalonde treated units versus PSID control individuals", "object": "LLvsPSID", "file": "LLvsPSID.rda", "class": [ "data.frame" ], "fields": [ "treated", "age", "education", "black", "married", "nodegree", "re74", "re75", "re78", "hispanic", "u74", "u75" ], "rows": 2787, "table": true, "tojson": true } ], "_help": [ { "page": "att", "title": "Example of ATT estimation from CEM output", "topics": [ "att", "plot.cem.att", "summary.cem.att" ] }, { "page": "cem", "title": "Coarsened Exact Matching", "topics": [ "cem" ] }, { "page": "cemspace", "title": "Exploration tool for CEM", "topics": [ "cemspace" ] }, { "page": "combine.spacegraphs", "title": "Combine two spacegraph objects.", "topics": [ "combine.spacegraphs" ] }, { "page": "DW", "title": "Dehejia-Wahba dataset", "topics": [ "DW" ] }, { "page": "imbalance", "title": "Calculates several imbalance measures", "topics": [ "imbalance" ] }, { "page": "imbspace", "title": "Diagnostic tool for CEM", "topics": [ "imbspace" ] }, { "page": "imbspace.plot", "title": "Plot of imbalance space diagnostic tool for CEM", "topics": [ "imbspace.plot" ] }, { "page": "k2k", "title": "Reduction to k2k Matching", "topics": [ "k2k" ] }, { "page": "L1.meas", "title": "Evaluates L1 distance between multidimensional histograms", "topics": [ "L1.meas" ] }, { "page": "L1.profile", "title": "Calculates L1 distance for different coarsenings", "topics": [ "L1.profile" ] }, { "page": "LeLonde", "title": "Modified Lalonde dataset", "topics": [ "LeLonde" ] }, { "page": "LL", "title": "Lalonde dataset", "topics": [ "LL" ] }, { "page": "LLvsPSID", "title": "Lalonde treated units versus PSID control individuals", "topics": [ "LLvsPSID" ] }, { "page": "pair", "title": "Produces a paired sample out of a CEM match solution", "topics": [ "pair" ] }, { "page": "pscoreSelect", "title": "Heuristic search of the best propensity score model specification", "topics": [ "pscoreSelect" ] }, { "page": "relax.cem", "title": "Diagnostic tool for CEM", "topics": [ "relax.cem", "relax.plot" ] }, { "page": "search.match", "title": "Heuristic search of match solutions", "topics": [ "search.match" ] }, { "page": "shift.cem", "title": "Diagnostic tool for CEM", "topics": [ "shift.cem" ] }, { "page": "spacegraph", "title": "Randomly compute many different matching solutions", "topics": [ "spacegraph" ] } ], "_readme": "https://github.com/cran/cem/raw/HEAD/README.md", "_rundeps": [ "backports", "chk", "cli", "combinat", "lattice", "lifecycle", "MatchIt", "nlme", "randomForest", "Rcpp", "RcppProgress", "rlang" ], "_vignettes": [ { "source": "cem.Rnw", "filename": "cem.pdf", "title": "Coarsened Exact Matching", "engine": "utils::Sweave", "headings": [ "Contents" ], "created": "2014-03-19", "modified": "2022-09-08 15:12:55", "commits": 7 } ], "_score": 6.148277799510857, "_indexed": true, "_nocasepkg": "cem", "_universes": [ "siacus" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "1.1.31", "date": "2026-06-13T08:37:51.000Z", "distro": "noble", "commit": "96ad772be164fa896d0c6026eae427cf0d2519ee", "fileid": "ba448de9e1fa6071644983e45c434ba1e9538a758b7406f16bad005f2c4a7760", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/siacus/actions/runs/27461757564" }, { "r": "4.6.0", "os": "linux", "version": "1.1.31", "date": "2026-06-13T08:38:09.000Z", "distro": "noble", "commit": "96ad772be164fa896d0c6026eae427cf0d2519ee", "fileid": "17356b2094d80f8dce12f5e922f532fa1ddcc6bb5c5235ab15fe9dd244512da1", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/siacus/actions/runs/27461757564" }, { "r": "4.5.3", "os": "mac", "version": "1.1.31", "date": "2026-06-13T08:37:48.000Z", "commit": "96ad772be164fa896d0c6026eae427cf0d2519ee", "fileid": "6709d56dd9780050d2c30b8ef1c69566f9855d708f847e4fdea1e11cacaa146d", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/siacus/actions/runs/27461757564" }, { "r": "4.6.0", "os": "mac", "version": "1.1.31", "date": "2026-06-13T08:38:50.000Z", "commit": "96ad772be164fa896d0c6026eae427cf0d2519ee", "fileid": "74d5f0ffaae225553790a016af3cf7ae9f228f986638e3ea4ca2df0ce29e81da", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/siacus/actions/runs/27461757564" }, { "r": "4.6.0", "os": "wasm", "version": "1.1.31", "date": "2026-06-13T08:38:13.000Z", "commit": "96ad772be164fa896d0c6026eae427cf0d2519ee", "fileid": "ccb9cc0e0e330b9eb2a0cd4cb662a1603fd37b6c0786aee673bebc02b8bbeb7f", "status": "success", "buildurl": "https://github.com/r-universe/siacus/actions/runs/27461757564" }, { "r": "4.7.0", "os": "win", "version": "1.1.31", "date": "2026-06-13T08:37:20.000Z", "commit": "96ad772be164fa896d0c6026eae427cf0d2519ee", "fileid": "692170f0b91cad8f89ef7377763be6be3608ce6996ceee171c830cdb0fe0d2c8", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/siacus/actions/runs/27461757564" }, { "r": "4.5.3", "os": "win", "version": "1.1.31", "date": "2026-06-13T08:37:56.000Z", "commit": "96ad772be164fa896d0c6026eae427cf0d2519ee", "fileid": "88201537c5e743721abae9c4e19a24be35860c3bef6aaefd67ff3d25111fa5be", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/siacus/actions/runs/27461757564" }, { "r": "4.6.0", "os": "win", "version": "1.1.31", "date": "2026-06-13T08:37:20.000Z", "commit": "96ad772be164fa896d0c6026eae427cf0d2519ee", "fileid": "9dd80ac2e1986d2b00900e6a7fff6b2390431fbbd295a06fadc9213263a5ef5f", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/siacus/actions/runs/27461757564" } ] }