{ "_id": "6a4dde80d253724d3f6dd83b", "Package": "segmented", "Type": "Package", "Title": "Regression Models with Break-Points / Change-Points Estimation\n(with Possibly Random Effects)", "Version": "2.2-1", "Date": "2026-01-29", "Authors@R": "c(person(given = c(\"Vito\",\"M.\",\"R.\"), family = \"Muggeo\", role =\nc(\"aut\", \"cre\"), email = \"vito.muggeo@unipa.it\", comment=c(ORCID=\"0000-0002-3386-4054\")))", "Maintainer": "Vito M. R. Muggeo ", "Description": "Fitting regression models where, in addition to possible\nlinear terms, one or more covariates have segmented (i.e.,\nbroken-line or piece-wise linear) or stepmented (i.e.\npiece-wise constant) effects. Multiple breakpoints for the same\nvariable are allowed. The estimation method is discussed in\nMuggeo (2003, ) and illustrated in Muggeo\n(2008, ).\nAn approach for hypothesis testing is presented in Muggeo\n(2016, ), and interval\nestimation for the breakpoint is discussed in Muggeo (2017,\n). Segmented mixed models, i.e. random\neffects in the change point, are discussed in Muggeo (2014,\n). Estimation of\npiecewise-constant relationships and changepoints (mean-shift\nmodels) is discussed in Fasola et al. (2018,\n).", "License": "GPL", "NeedsCompilation": "no", "Packaged": { "Date": "2026-07-08 05:18:33 UTC", "User": "root" }, "Author": "Vito M. R. Muggeo [aut, cre] (ORCID:\n)", "RoxygenNote": "7.3.1", "Repository": "https://vitomuggeo.r-universe.dev", "Date/Publication": "2026-01-29 15:40:03 UTC", "RemoteUrl": "https://github.com/cran/segmented", "RemoteRef": "HEAD", "RemoteSha": "d084a0c6949f903efbcf9030ff9aecf4c0115821", "_user": "vitomuggeo", "_type": "src", "_file": "segmented_2.2-1.tar.gz", "_fileid": "https://r2.ropensci.org/6a28cf106588a59f975c611c79116eb5aa5e37a6fb73fef1245c729030d792ef", "_filesize": 716796, "_sha256": "6a28cf106588a59f975c611c79116eb5aa5e37a6fb73fef1245c729030d792ef", "_expires": "2026-10-16T05:22:06.000Z", "_created": "2026-07-08T05:18:33.000Z", "_published": "2026-07-08T05:22:08.257Z", "_jobs": [ { "job": 85793237569, "time": 160, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "8158901082" }, { "job": 85793237573, "time": 144, "config": "linux-release-x86_64", "r": "4.6.1", "check": "OK", "artifact": "8158897510" }, { "job": 85793237576, "time": 98, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "OK", "artifact": "8158885731" }, { "job": 85793237568, "time": 90, "config": "macos-release-arm64", "r": "4.6.1", "check": "OK", "artifact": "8158883341" }, { "job": 85792926584, "time": 148, "config": "source", "r": "4.6.1", "check": "OK", "artifact": "8158859968" }, { "job": 85793237560, "time": 88, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "8158883038" }, { "job": 85793237599, "time": 121, "config": "windows-devel", "r": "4.7.0", "check": "OK", "artifact": "8158891527" }, { "job": 85793237612, "time": 118, "config": "windows-oldrel", "r": "4.5.3", "check": "OK", "artifact": "8158890336" }, { "job": 85793237603, "time": 112, "config": "windows-release", "r": "4.6.1", "check": "OK", "artifact": "8158889269" } ], "_host": "GitHub-Actions", "_buildurl": "https://github.com/r-universe/vitomuggeo/actions/runs/28919345009", "_status": "success", "_upstream": "https://github.com/cran/segmented", "_commit": { "id": "d084a0c6949f903efbcf9030ff9aecf4c0115821", "author": "Vito M. R. Muggeo ", "committer": "cran-robot ", "message": "version 2.2-1\n", "time": 1769701203 }, "_maintainer": { "name": "Vito M. R. Muggeo", "email": "vito.muggeo@unipa.it", "login": "vitomuggeo", "description": "", "uuid": 81767267, "orcid": "0000-0002-3386-4054" }, "_distro": "resolute", "_registered": true, "_dependencies": [ { "package": "R", "version": ">= 3.5.0", "role": "Depends" }, { "package": "MASS", "role": "Depends" }, { "package": "nlme", "role": "Depends" } ], "_owner": "cran", "_selfowned": true, "_usedby": 214, "_updates": [ { "week": "2026-03", "n": 1 }, { "week": "2026-05", "n": 1 } ], "_tags": [ { "name": "2.2-0", "date": "2026-01-15" }, { "name": "2.2-1", "date": "2026-01-29" } ], "_stars": 11, "_contributors": [ { "user": "vitomuggeo", "count": 56, "uuid": 81767267 } ], "_userbio": { "uuid": 81767267, "type": "user", "name": "VitoMuggeo", "followers": 0 }, "_downloads": { "count": 45130, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/segmented" }, "_mentions": 64, "_searchresults": 1260, "_rbuild": "4.6.1", "_assets": [ "extra/citation.cff", "extra/citation.html", "extra/citation.json", "extra/citation.txt", "extra/contents.json", "extra/NEWS.html", "extra/NEWS.txt", "extra/segmented.html", "manual.pdf" ], "_realowner": "vitomuggeo", "_cranurl": false, "_releases": [ { "version": "0.1-1", "date": "2003-10-07" }, { "version": "0.1-2", "date": "2003-12-16" }, { "version": "0.1-3", "date": "2004-01-22" }, { "version": "0.1-4", "date": "2004-02-17" }, { "version": "0.2-0", "date": "2007-07-20" }, { "version": "0.2-1", "date": "2007-10-08" }, { "version": "0.2-2", "date": "2007-10-17" }, { "version": "0.2-3", "date": "2008-01-07" }, { "version": "0.2-4", "date": "2008-01-21" }, { "version": "0.2-5", "date": "2009-10-26" }, { "version": "0.2-6", "date": "2009-11-06" }, { "version": "0.2-7", "date": "2010-04-14" }, { "version": "0.2-7.1", "date": "2010-04-28" }, { "version": "0.2-7.2", "date": "2010-09-28" }, { "version": "0.2-7.3", "date": "2010-12-03" }, { "version": "0.2-8", "date": "2011-05-25" }, { "version": "0.2-8.1", "date": "2011-06-20" }, { "version": "0.2-8.2", "date": "2011-07-05" }, { "version": "0.2-8.3", "date": "2012-01-16" }, { "version": "0.2-8.4", "date": "2012-01-31" }, { "version": "0.2-9.0", "date": "2012-04-20" }, { "version": "0.2-9.1", "date": "2012-05-10" }, { "version": "0.2-9.2", "date": "2012-07-12" }, { "version": "0.2-9.3", "date": "2012-09-22" }, { "version": "0.2-9.4", "date": "2013-01-22" }, { "version": "0.2-9.5", "date": "2013-10-04" }, { "version": "0.3-0.0", "date": "2013-11-18" }, { "version": "0.3-1.0", "date": "2014-04-18" }, { "version": "0.4-0.0", "date": "2014-07-11" }, { "version": "0.5-0.0", "date": "2014-09-10" }, { "version": "0.5-1.0", "date": "2014-12-12" }, { "version": "0.5-1.1", "date": "2015-02-18" }, { "version": "0.5-1.2", "date": "2015-09-08" }, { "version": "0.5-1.4", "date": "2015-11-04" }, { "version": "0.5-2.0", "date": "2017-05-25" }, { "version": "0.5-2.1", "date": "2017-06-14" }, { "version": "0.5-2.2", "date": "2017-09-19" }, { "version": "0.5-3.0", "date": "2017-11-30" }, { "version": "0.5-4.0", "date": "2019-05-13" }, { "version": "1.0-0", "date": "2019-06-17" }, { "version": "1.1-0", "date": "2019-12-10" }, { "version": "1.2-0", "date": "2020-06-23" }, { "version": "1.3-0", "date": "2020-10-27" }, { "version": "1.3-1", "date": "2020-12-10" }, { "version": "1.3-2", "date": "2021-02-09" }, { "version": "1.3-3", "date": "2021-03-08" }, { "version": "1.3-4", "date": "2021-04-22" }, { "version": "1.4-0", "date": "2022-01-28" }, { "version": "1.4-1", "date": "2022-03-24" }, { "version": "1.5-0", "date": "2022-04-12" }, { "version": "1.6-0", "date": "2022-05-31" }, { "version": "1.6-1", "date": "2022-11-08" }, { "version": "1.6-2", "date": "2022-12-09" }, { "version": "1.6-3", "date": "2023-03-27" }, { "version": "1.6-4", "date": "2023-04-13" }, { "version": "2.0-0", "date": "2023-11-27" }, { "version": "2.0-1", "date": "2023-12-19" }, { "version": "2.0-2", "date": "2024-01-23" }, { "version": "2.0-3", "date": "2024-02-16" }, { "version": "2.0-4", "date": "2024-04-19" }, { "version": "2.1-0", "date": "2024-05-14" }, { "version": "2.1-1", "date": "2024-07-26" }, { "version": "2.1-2", "date": "2024-09-05" }, { "version": "2.1-3", "date": "2024-10-25" }, { "version": "2.1-4", "date": "2025-02-28" }, { "version": "2.2-0", "date": "2026-01-15" }, { "version": "2.2-1", "date": "2026-01-29" } ], "_exports": [ "aapc", "broken.line", "coef.segmented", "confint.segmented", "confint.segmented.lme", "davies.test", "draw.history", "fitted.segmented.lme", "fixef.segmented.lme", "intercept", "lines.segmented", "logLik.segmented.lme", "model.matrix.segmented", "model.matrix.stepmented", "plot.segmented", "plot.segmented.lme", "plot.stepmented", "points.segmented", "predict.segmented", "predict.stepmented", "print.segmented", "print.segmented.lme", "print.stepmented", "print.summary.segmented", "print.summary.stepmented", "pscore.test", "pwr.seg", "seg", "seg.Ar.fit", "seg.Ar.fit.boot", "seg.control", "seg.def.fit", "seg.def.fit.boot", "seg.glm.fit", "seg.glm.fit.boot", "seg.lm.fit", "seg.lm.fit.boot", "seg.num.fit", "seg.num.fit.boot", "segmented", "segmented.Arima", "segmented.default", "segmented.glm", "segmented.lm", "segmented.lme", "segmented.numeric", "segreg", "selgmented", "slope", "stelpmented", "step.glm.fit", "step.glm.fit.boot", "step.lm.fit", "step.lm.fit.boot", "step.num.fit", "step.num.fit.boot", "step.ts.fit", "step.ts.fit.boot", "stepmented", "stepmented.glm", "stepmented.lm", "stepmented.numeric", "stepmented.ts", "stepreg", "summary.segmented", "summary.segmented.lme", "summary.stepmented", "vcov.segmented", "vcov.segmented.lme", "vcov.stepmented" ], "_datasets": [ { "name": "down", "title": "Down syndrome in babies", "object": "down", "file": "down.rda", "class": [ "data.frame" ], "fields": [ "age", "births", "cases" ], "rows": 30, "table": true, "tojson": true }, { "name": "globTempAnom", "title": "Global temperature anomalies 1850-2023", "object": "globTempAnom", "file": "globTempAnom.rda", "class": [ "data.frame" ], "fields": [ "Year", "Anomaly" ], "rows": 174, "table": true, "tojson": true }, { "name": "plant", "title": "Plan organ dataset", "object": "plant", "file": "plant.rda", "class": [ "data.frame" ], "fields": [ "y", "time", "group" ], "rows": 103, "table": true, "tojson": true }, { "name": "stagnant", "title": "Stagnant band height data", "object": "stagnant", "file": "stagnant.rda", "class": [ "data.frame" ], "fields": [ "x", "y" ], "rows": 28, "table": true, "tojson": true } ], "_help": [ { "page": "segmented-package", "title": "Segmented Relationships in Regression Models with Breakpoints / Changepoints Estimation (with Possibly Random Effects)", "topics": [ "segmented-package" ] }, { "page": "aapc", "title": "Average annual per cent change in segmented trend analysis", "topics": [ "aapc" ] }, { "page": "broken.line", "title": "Fitted values for segmented relationships", "topics": [ "broken.line" ] }, { "page": "confint.segmented", "title": "Confidence intervals for breakpoints", "topics": [ "confint.segmented" ] }, { "page": "confint.segmented.lme", "title": "Confidence intervals in segmented mixed models", "topics": [ "confint.segmented.lme" ] }, { "page": "confint.stepmented", "title": "Confidence intervals for jumpoints in stepmented regression", "topics": [ "confint.stepmented" ] }, { "page": "davies.test", "title": "Testing for a change in the slope", "topics": [ "davies.test" ] }, { "page": "down", "title": "Down syndrome in babies", "topics": [ "down" ] }, { "page": "draw.history", "title": "History for the breakpoint estimates", "topics": [ "draw.history" ] }, { "page": "fitted.segmented.lme", "title": "Fitted values for segmented mixed fits", "topics": [ "fitted.segmented.lme" ] }, { "page": "globTempAnom", "title": "Global temperature anomalies 1850-2023", "topics": [ "globTempAnom" ] }, { "page": "intercept", "title": "Intercept estimates from segmented relationships", "topics": [ "intercept" ] }, { "page": "lines.segmented", "title": "Bars for interval estimate of the breakpoints", "topics": [ "lines.segmented" ] }, { "page": "lines.stepmented", "title": "Bars for interval estimate of the breakpoints", "topics": [ "lines.stepmented" ] }, { "page": "model.matrix.segmented", "title": "Design matrix for segmented fits", "topics": [ "model.matrix.segmented" ] }, { "page": "model.matrix.stepmented", "title": "Design matrix for stepmented fits", "topics": [ "model.matrix.stepmented" ] }, { "page": "plant", "title": "Plan organ dataset", "topics": [ "plant" ] }, { "page": "plot.segmented", "title": "Plot method for segmented objects", "topics": [ "plot.segmented" ] }, { "page": "plot.segmented.lme", "title": "Plot method for segmented mixed objects", "concept": [ "changepoint" ], "topics": [ "plot.segmented.lme" ] }, { "page": "plot.stepmented", "title": "Plot method for stepmented objects", "topics": [ "plot.stepmented" ] }, { "page": "points.segmented", "title": "Points method for segmented objects", "topics": [ "points.segmented" ] }, { "page": "predict.segmented", "title": "Predict method for segmented model fits", "topics": [ "predict.segmented" ] }, { "page": "predict.stepmented", "title": "Predict method for stepmented model fits", "topics": [ "predict.stepmented" ] }, { "page": "print.segmented", "title": "Print method for the segmented class", "topics": [ "coef.segmented", "print.segmented" ] }, { "page": "print.segmented.lme", "title": "Print method for the segmented.lme class", "topics": [ "fixef.segmented.lme", "logLik.segmented.lme", "print.segmented.lme" ] }, { "page": "pscore.test", "title": "Testing for existence of one breakpoint", "topics": [ "pscore.test" ] }, { "page": "pwr.seg", "title": "Power Analysis in segmented regression", "topics": [ "pwr.seg" ] }, { "page": "seg", "title": "Specifying a segmented/stepmented term in the segreg/stepreg formula", "topics": [ "seg" ] }, { "page": "seg.control", "title": "Auxiliary for controlling segmented/stepmented model fitting", "topics": [ "seg.control" ] }, { "page": "seg.lm.fit", "title": "Fitter Functions for Segmented Linear Models", "topics": [ "seg.Ar.fit", "seg.Ar.fit.boot", "seg.def.fit", "seg.def.fit.boot", "seg.glm.fit", "seg.glm.fit.boot", "seg.lm.fit", "seg.lm.fit.boot", "seg.num.fit", "seg.num.fit.boot", "segConstr.glm.fit", "segConstr.glm.fit.boot", "segConstr.lm.fit", "segConstr.lm.fit.boot" ] }, { "page": "segmented", "title": "Segmented relationships in regression models", "topics": [ "segmented", "segmented.Arima", "segmented.default", "segmented.glm", "segmented.lm", "segmented.numeric" ] }, { "page": "segmented.lme", "title": "Segmented relationships in linear mixed models", "topics": [ "segmented.glme", "segmented.lme" ] }, { "page": "segreg", "title": "Fitting segmented/stepmented regression", "topics": [ "segreg", "stepreg" ] }, { "page": "selgmented", "title": "Selecting the number of breakpoints/changepoints in segmented/stepmented regression", "topics": [ "selgmented", "stelpmented" ] }, { "page": "slope", "title": "Slope estimates from segmented/stepmented relationships", "topics": [ "slope" ] }, { "page": "stagnant", "title": "Stagnant band height data", "topics": [ "stagnant" ] }, { "page": "step.lm.fit", "title": "Fitter Functions for stepmented Linear Models", "topics": [ "step.glm.fit", "step.glm.fit.boot", "step.lm.fit", "step.lm.fit.boot", "step.num.fit", "step.num.fit.boot", "step.ts.fit", "step.ts.fit.boot" ] }, { "page": "stepmented", "title": "stepmented relationships in regression models", "topics": [ "stepmented", "stepmented.glm", "stepmented.lm", "stepmented.numeric", "stepmented.ts" ] }, { "page": "summary.segmented", "title": "Summarizing model fits for segmented regression", "topics": [ "print.summary.segmented", "summary.segmented" ] }, { "page": "summary.segmented.lme", "title": "Summarizing model fits for segmented mixed-effects regression", "topics": [ "summary.segmented.lme" ] }, { "page": "summary.stepmented", "title": "Summarizing model fits for stepmented regression", "topics": [ "print.stepmented", "print.summary.stepmented", "summary.stepmented" ] }, { "page": "vcov.segmented", "title": "Variance-Covariance Matrix for a Fitted Segmented Model", "topics": [ "vcov.segmented" ] }, { "page": "vcov.segmented.lme", "title": "Variance-Covariance Matrix for a Fitted Segmented Mixed Model", "topics": [ "vcov.segmented.lme" ] }, { "page": "vcov.stepmented", "title": "Variance-Covariance Matrix for a Fitted Stepmented Model", "topics": [ "vcov.stepmented" ] } ], "_rundeps": [ "lattice", "MASS", "nlme" ], "_score": 9.904793587528768, "_indexed": true, "_nocasepkg": "segmented", "_universes": [ "vitomuggeo" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "2.2-1", "date": "2026-07-08T05:20:42.000Z", "distro": "resolute", "commit": "d084a0c6949f903efbcf9030ff9aecf4c0115821", "fileid": "https://r2.ropensci.org/1dd75069b8bdd6ffdc2dca42279993fc6728c5009c8efb4c246706e470e78900", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/vitomuggeo/actions/runs/28919345009" }, { "r": "4.6.1", "os": "linux", "version": "2.2-1", "date": "2026-07-08T05:20:30.000Z", "distro": "resolute", "commit": "d084a0c6949f903efbcf9030ff9aecf4c0115821", "fileid": "https://r2.ropensci.org/fbc3d920d34a0c54849e7b3fabf61712a7728fdf1e6055d5181ee1e9a3880b22", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/vitomuggeo/actions/runs/28919345009" }, { "r": "4.5.3", "os": "mac", "version": "2.2-1", "date": "2026-07-08T05:20:11.000Z", "commit": "d084a0c6949f903efbcf9030ff9aecf4c0115821", "fileid": "https://r2.ropensci.org/bea1809544014a1c85dc840ba1a0ebf3e8f486732821521a78c81c268bc13ca7", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/vitomuggeo/actions/runs/28919345009" }, { "r": "4.6.1", "os": "mac", "version": "2.2-1", "date": "2026-07-08T05:20:00.000Z", "commit": "d084a0c6949f903efbcf9030ff9aecf4c0115821", "fileid": "https://r2.ropensci.org/db29af5a94a769f65505b091d08d7d45bba750890c41e85ec9a08989ad4c6d04", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/vitomuggeo/actions/runs/28919345009" }, { "r": "4.6.0", "os": "wasm", "version": "2.2-1", "date": "2026-07-08T05:20:29.000Z", "commit": "d084a0c6949f903efbcf9030ff9aecf4c0115821", "fileid": "https://r2.ropensci.org/6cf62827e235cfdd1bdad84b1d2c174886efc21140163a097e66945f282b6766", "status": "success", "buildurl": "https://github.com/r-universe/vitomuggeo/actions/runs/28919345009" }, { "r": "4.7.0", "os": "win", "version": "2.2-1", "date": "2026-07-08T05:19:54.000Z", "commit": "d084a0c6949f903efbcf9030ff9aecf4c0115821", "fileid": "https://r2.ropensci.org/dac51529d903717d2a8ac126d898ebeda59d665e72508c9da3793a23cc103762", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/vitomuggeo/actions/runs/28919345009" }, { "r": "4.5.3", "os": "win", "version": "2.2-1", "date": "2026-07-08T05:19:51.000Z", "commit": "d084a0c6949f903efbcf9030ff9aecf4c0115821", "fileid": "https://r2.ropensci.org/28dd21d62ea5f64c87df5d25230572b9e7d427b6c51d5b331de85390210e1757", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/vitomuggeo/actions/runs/28919345009" }, { "r": "4.6.1", "os": "win", "version": "2.2-1", "date": "2026-07-08T05:19:46.000Z", "commit": "d084a0c6949f903efbcf9030ff9aecf4c0115821", "fileid": "https://r2.ropensci.org/e4aee0c6accccd63300e4df72744215e573261d806deded615e687913d61b142", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/vitomuggeo/actions/runs/28919345009" } ] }