{ "_id": "6a1fec80b401979e73440ca8", "Package": "cgam", "Type": "Package", "Title": "Constrained Generalized Additive Model", "Version": "1.32", "Date": "2026-03-05", "Authors@R": "c(\nperson(\"Mary\", \"Meyer\", email = \"meyer@stat.colostate.edu\", role = \"aut\"),\nperson(\"Xiyue\", \"Liao\", email = \"xliao@sdsu.edu\", role = c(\"aut\", \"cre\"), comment = c(ORCID = \"0000-0002-4508-9219\")))", "Description": "A constrained generalized additive model is fitted by the\ncgam routine. Given a set of predictors, each of which may have\na shape or order restrictions, the maximum likelihood estimator\nfor the constrained generalized additive model is found using\nan iteratively re-weighted cone projection algorithm. The\nShapeSelect routine chooses a subset of predictor variables and\ndescribes the component relationships with the response. For\neach predictor, the user needs only specify a set of possible\nshape or order restrictions. A model selection method chooses\nthe shapes and orderings of the relationships as well as the\nvariables. The cone information criterion (CIC) is used to\nselect the best combination of variables and shapes. A genetic\nalgorithm may be used when the set of possible models is large.\nIn addition, the cgam routine implements a two-dimensional\nisotonic regression using warped-plane splines without\nadditivity assumptions. It can also fit a convex or concave\nregression surface with triangle splines without additivity\nassumptions. See Liao X, Meyer MC\n(2019) for more details.", "License": "GPL (>= 2)", "RoxygenNote": "7.3.2", "NeedsCompilation": "no", "ByteCompile": "true", "Packaged": { "Date": "2026-06-03 08:52:15 UTC", "User": "root" }, "Author": "Mary Meyer [aut], Xiyue Liao [aut, cre] (ORCID:\n)", "Maintainer": "Xiyue Liao ", "Config/pak/sysreqs": "cmake make", "Repository": "https://xliaosdsu.r-universe.dev", "Date/Publication": "2026-03-05 06:10:50 UTC", "RemoteUrl": "https://github.com/cran/cgam", "RemoteRef": "HEAD", "RemoteSha": "73ca13014b169df4b2e8aad306b1be57b683965a", "MD5sum": "3e4180de7a02d8b163852d8ad602fe55", "_user": "xliaosdsu", "_type": "src", "_file": "cgam_1.32.tar.gz", "_fileid": "29166018eedd2d09cfa108b153e2992f6424c45639ad497d54aebc45126afe78", "_filesize": 719315, "_sha256": "29166018eedd2d09cfa108b153e2992f6424c45639ad497d54aebc45126afe78", "_created": "2026-06-03T08:52:15.000Z", "_published": "2026-06-03T08:57:36.914Z", "_distro": "noble", "_jobs": [ { "job": 79257077265, "time": 182, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "OK", "artifact": "7380031958" }, { "job": 79257077290, "time": 215, "config": "linux-release-x86_64", "r": "4.6.0", "check": "OK", "artifact": "7380044137" }, { "job": 79257077297, "time": 264, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "OK", "artifact": "7380054366" }, { "job": 79257077285, "time": 163, "config": "macos-release-arm64", "r": "4.6.0", "check": "OK", "artifact": "7380020018" }, { "job": 79256459965, "time": 212, "config": "source", "r": "4.6.0", "check": "OK", "artifact": "7379966211" }, { "job": 79257077256, "time": 117, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "7380009216" }, { "job": 79257077372, "time": 180, "config": "windows-devel", "r": "4.7.0", "check": "OK", "artifact": "7380033379" }, { "job": 79257077335, "time": 191, "config": "windows-oldrel", "r": "4.5.3", "check": "OK", "artifact": "7380035064" }, { "job": 79257077473, "time": 183, "config": "windows-release", "r": "4.6.0", "check": "OK", "artifact": "7380032621" } ], "_buildurl": "https://github.com/r-universe/xliaosdsu/actions/runs/26874025683", "_status": "success", "_host": "GitHub-Actions", "_upstream": "https://github.com/cran/cgam", "_commit": { "id": "73ca13014b169df4b2e8aad306b1be57b683965a", "author": "Xiyue Liao ", "committer": "cran-robot ", "message": "version 1.32\n", "time": 1772691050 }, "_maintainer": { "name": "Xiyue Liao", "email": "xliao@sdsu.edu", "login": "xliaosdsu", "description": "\n", "uuid": 188472154, "orcid": "0000-0002-4508-9219" }, "_registered": true, "_dependencies": [ { "package": "coneproj", "version": ">= 1.20", "role": "Depends" }, { "package": "R", "version": ">= 4.3.0", "role": "Depends" }, { "package": "splines2", "role": "Imports" }, { "package": "svDialogs", "role": "Imports" }, { "package": "statmod", "role": "Imports" }, { "package": "lme4", "role": "Imports" }, { "package": "Matrix", "role": "Imports" }, { "package": "ggplot2", "role": "Imports" }, { "package": "dplyr", "role": "Imports" }, { "package": "parallel", "role": "Imports" }, { "package": "zeallot", "role": "Imports" }, { "package": "rlang", "role": "Imports" }, { "package": "quadprog", "role": "Imports" }, { "package": "MASS", "role": "Imports" }, { "package": "stats", "role": "Imports" }, { "package": "graphics", "role": "Suggests" }, { "package": "grDevices", "role": "Suggests" }, { "package": "utils", "role": "Suggests" }, { "package": "roxygen2", "role": "Suggests" }, { "package": "patchwork", "role": "Suggests" }, { "package": "glmnet", "role": "Suggests" } ], "_owner": "cran", "_selfowned": true, "_usedby": 3, "_updates": [ { "week": "2025-27", "n": 1 }, { "week": "2025-34", "n": 1 }, { "week": "2026-03", "n": 1 }, { "week": "2026-06", "n": 1 }, { "week": "2026-10", "n": 1 } ], "_tags": [ { "name": "1.28", "date": "2025-07-05" }, { "name": "1.29", "date": "2025-08-23" }, { "name": "1.30", "date": "2026-01-16" }, { "name": "1.31", "date": "2026-02-08" }, { "name": "1.32", "date": "2026-03-05" } ], "_stars": 1, "_contributors": [ { "user": "xliaosdsu", "count": 12, "uuid": 188472154 }, { "user": "clair2014csu", "count": 9, "uuid": 8144198 }, { "user": "xiyue2011", "count": 8, "uuid": 8402928 }, { "user": "francisxl2019", "count": 4, "uuid": 51418209 } ], "_userbio": { "uuid": 188472154, "type": "user", "name": "xliaosdsu" }, "_downloads": { "count": 3925, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/cgam" }, "_searchresults": 60, "_rbuild": "4.6.0", "_assets": [ "extra/cgam.html", "extra/citation.cff", "extra/citation.html", "extra/citation.json", "extra/citation.txt", "extra/contents.json", "manual.pdf" ], "_realowner": "xliaosdsu", "_cranurl": false, "_releases": [ { "version": "1.0", "date": "2014-03-05" }, { "version": "1.1", "date": "2014-04-16" }, { "version": "1.2", "date": "2014-09-10" }, { "version": "1.3", "date": "2015-10-01" }, { "version": "1.4", "date": "2016-04-14" }, { "version": "1.5", "date": "2016-06-05" }, { "version": "1.6", "date": "2016-11-02" }, { "version": "1.7", "date": "2017-07-02" }, { "version": "1.8", "date": "2017-10-02" }, { "version": "1.9", "date": "2018-02-15" }, { "version": "1.10", "date": "2018-04-11" }, { "version": "1.11", "date": "2018-06-28" }, { "version": "1.12", "date": "2018-11-08" }, { "version": "1.13", "date": "2019-04-23" }, { "version": "1.14", "date": "2019-05-01" }, { "version": "1.15", "date": "2019-10-13" }, { "version": "1.16", "date": "2020-09-29" }, { "version": "1.17", "date": "2021-12-13" }, { "version": "1.18", "date": "2022-07-18" }, { "version": "1.19", "date": "2022-10-04" }, { "version": "1.20", "date": "2022-11-16" }, { "version": "1.21", "date": "2023-08-10" }, { "version": "1.22", "date": "2025-02-17" }, { "version": "1.23", "date": "2025-02-19" }, { "version": "1.24", "date": "2025-04-11" }, { "version": "1.25", "date": "2025-04-23" }, { "version": "1.26", "date": "2025-04-28" }, { "version": "1.27", "date": "2025-05-12" }, { "version": "1.28", "date": "2025-07-05" }, { "version": "1.29", "date": "2025-08-23" }, { "version": "1.30", "date": "2026-01-16" }, { "version": "1.31", "date": "2026-02-08" }, { "version": "1.32", "date": "2026-03-05" } ], "_exports": [ "cgam", "cgamm", "conc", "conv", "decr", "decr.conc", "decr.conv", "incr", "incr.conc", "incr.conv", "Ord", "plotpersp", "plotpersp_control", "predict.cgam", "s", "s.conc", "s.conc.conc", "s.conv", "s.conv.conv", "s.decr", "s.decr.conc", "s.decr.conv", "s.decr.decr", "s.decr.incr", "s.incr", "s.incr.conc", "s.incr.conv", "s.incr.decr", "s.incr.incr", "shapeselect", "shapeselect_control", "testpar", "tree", "umbrella" ], "_datasets": [ { "name": "COforest", "title": "Colorado Forest Data Set", "object": "COforest", "file": "COforest.rda", "class": [ "data.frame" ], "fields": [ "PLT_CN", "STATECD", "COUNTYCD", "ELEV_PUBLIC", "LON_PUBLIC", "LAT_PUBLIC", "ASPECT", "SLOPE", "SUBP", "TREE", "STATUSCD", "SPCD", "DIA", "HT", "ACTUALHT", "HTCD", "TREECLCD", "CR", "CCLCD" ], "rows": 9167, "table": true, "tojson": true }, { "name": "cubic", "title": "A Data Set for Cgam", "object": "cubic", "file": "cubic.rda", "class": [ "data.frame" ], "fields": [ "x", "y" ], "rows": 50, "table": true, "tojson": true }, { "name": "mental", "title": "Alachua County Study of Mental Impairment", "object": "mental", "file": "mental.rda", "class": [ "data.frame" ], "fields": [ "mental", "ses", "life" ], "rows": 40, "table": true, "tojson": true }, { "name": "plasma", "title": "A Data Set for Cgam", "object": "plasma", "file": "plasma.rda", "class": [ "data.frame" ], "fields": [ "logplasma", "betacaro", "bmi", "cholest", "logdietfat", "fiber", "retinol", "smoke", "vituse" ], "rows": 314, "table": true, "tojson": true } ], "_help": [ { "page": "cgam", "title": "Constrained Generalized Additive Model Fitting", "topics": [ "cgam" ] }, { "page": "cgamm", "title": "Constrained Generalized Additive Mixed-Effects Model Fitting", "topics": [ "cgamm" ] }, { "page": "COforest", "title": "Colorado Forest Data Set", "topics": [ "COforest" ] }, { "page": "conc", "title": "Specify a Concave Shape-Restriction in a CGAM Formula", "topics": [ "conc" ] }, { "page": "conv", "title": "Specify a Convex Shape-Restriction in a CGAM Formula", "topics": [ "conv" ] }, { "page": "cubic", "title": "A Data Set for Cgam", "topics": [ "cubic" ] }, { "page": "decr", "title": "Specify a Decreasing Shape-Restriction in a CGAM Formula", "topics": [ "decr" ] }, { "page": "decr.conc", "title": "Specify a Decreasing and Concave Shape-Restriction in a CGAM Formula", "topics": [ "decr.conc" ] }, { "page": "decr.conv", "title": "Specify a Decreasing and Convex Shape-Restriction in a CGAM Formula", "topics": [ "decr.conv" ] }, { "page": "incr", "title": "Specify an Increasing Shape-Restriction in a CGAM Formula", "topics": [ "incr" ] }, { "page": "incr.conc", "title": "Specify an Increasing and Concave Shape-Restriction in a CGAM Formula", "topics": [ "incr.conc" ] }, { "page": "incr.conv", "title": "Specify an Increasing and Convex Shape-Restriction in a CGAM Formula", "topics": [ "incr.conv" ] }, { "page": "mental", "title": "Alachua County Study of Mental Impairment", "topics": [ "mental" ] }, { "page": "Ord", "title": "Specify an Ordered Categorical Family in a CGAM Formula", "topics": [ "Ord" ] }, { "page": "plasma", "title": "A Data Set for Cgam", "topics": [ "plasma" ] }, { "page": "plotpersp", "title": "Create a 3D Plot for a CGAM Object", "topics": [ "plotpersp" ] }, { "page": "plotpersp_control", "title": "Control Parameters for plotpersp.cgam", "topics": [ "plotpersp_control" ] }, { "page": "predict.cgam", "title": "Predict Method for CGAM Fits", "topics": [ "predict.cgam" ] }, { "page": "s", "title": "Specify a Smooth Shape-Restriction in a CGAM Formula", "topics": [ "s" ] }, { "page": "s.conc", "title": "Specify a Smooth and Concave Shape-Restriction in a CGAM Formula", "topics": [ "s.conc" ] }, { "page": "s.conc.conc", "title": "Specify a Doubly-Concave Shape-Restriction in a CGAM Formula", "topics": [ "s.conc.conc" ] }, { "page": "s.conv", "title": "Specify a Smooth and Convex Shape-Restriction in a CGAM Formula", "topics": [ "s.conv" ] }, { "page": "s.conv.conv", "title": "Specify a Doubly-convex Shape-Restriction in a CGAM Formula", "topics": [ "s.conv.conv" ] }, { "page": "s.decr", "title": "Specify a Smooth and Decreasing Shape-Restriction in a CGAM Formula", "topics": [ "s.decr" ] }, { "page": "s.decr.conc", "title": "Specify a Smooth, Decreasing and Concave Shape-Restriction in a CGAM Formula", "topics": [ "s.decr.conc" ] }, { "page": "s.decr.conv", "title": "Specify a Smooth, Decreasing and Convex Shape-Restriction in a CGAM Formula", "topics": [ "s.decr.conv" ] }, { "page": "s.decr.decr", "title": "Specify a Doubly-Decreasing Shape-Restriction in a CGAM Formula", "topics": [ "s.decr.decr" ] }, { "page": "s.decr.incr", "title": "Specify a Decreasing-Increasing Shape-Restriction in a CGAM Formula", "topics": [ "s.decr.incr" ] }, { "page": "s.incr", "title": "Specify a Smooth and Increasing Shape-Restriction in a CGAM Formula", "topics": [ "s.incr" ] }, { "page": "s.incr.conc", "title": "Specify a Smooth, Increasing and Concave Shape-Restriction in a CGAM Formula", "topics": [ "s.incr.conc" ] }, { "page": "s.incr.conv", "title": "Specify an Smooth, Increasing and Convex Shape-Restriction in a CGAM Formula", "topics": [ "s.incr.conv" ] }, { "page": "s.incr.decr", "title": "Specify an Increasing-Decreasing Shape-Restriction in a CGAM Formula", "topics": [ "s.incr.decr" ] }, { "page": "s.incr.incr", "title": "Specify a Doubly-Increasing Shape-Restriction in a CGAM Formula", "topics": [ "s.incr.incr" ] }, { "page": "shapeselect", "title": "Shape selection for additive components with shape or order constraints", "topics": [ "shapeselect" ] }, { "page": "shapeselect_control", "title": "Control parameters for 'shapeselect()'", "topics": [ "shapeselect_control" ] }, { "page": "testpar", "title": "Parametric Monotone/Quadratic vs Smooth Constrained Test", "topics": [ "testpar" ] }, { "page": "tree", "title": "Specify a Tree-Ordering in a CGAM Formula", "topics": [ "tree" ] }, { "page": "umbrella", "title": "Specify an Umbrella-Ordering in a CGAM Formula", "topics": [ "umbrella" ] } ], "_rundeps": [ "boot", "cli", "coneproj", "cpp11", "dplyr", "farver", "generics", "ggplot2", "glue", "gtable", "isoband", "labeling", "lattice", "lifecycle", "lme4", "magrittr", "MASS", "Matrix", "minqa", "nlme", "nloptr", "pillar", "pkgconfig", "quadprog", "R6", "rbibutils", "RColorBrewer", "Rcpp", "RcppArmadillo", "RcppEigen", "Rdpack", "reformulas", "rlang", "rstudioapi", "S7", "scales", "splines2", "statmod", "svDialogs", "svGUI", "tibble", "tidyselect", "utf8", "vctrs", "viridisLite", "withr", "zeallot" ], "_score": 4.502324679959921, "_indexed": true, "_nocasepkg": "cgam", "_universes": [ "xliaosdsu" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "1.32", "date": "2026-06-03T08:54:40.000Z", "distro": "noble", "commit": "73ca13014b169df4b2e8aad306b1be57b683965a", "fileid": "82b05801337b9ade69706c774ee0f9cfcc2966a229fbaedec9b4d4d3077b08f6", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/xliaosdsu/actions/runs/26874025683" }, { "r": "4.6.0", "os": "linux", "version": "1.32", "date": "2026-06-03T08:54:56.000Z", "distro": "noble", "commit": "73ca13014b169df4b2e8aad306b1be57b683965a", "fileid": "56ac20750caeaa89d753e5d3af0bfed866f27b686ddc3476d79e154d54ae38ad", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/xliaosdsu/actions/runs/26874025683" }, { "r": "4.5.3", "os": "mac", "version": "1.32", "date": "2026-06-03T08:55:41.000Z", "commit": "73ca13014b169df4b2e8aad306b1be57b683965a", "fileid": "c456e7462210ebc03a7692ce1f64ac904ffb0f4ff9a1af31c9dfced9825bd361", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/xliaosdsu/actions/runs/26874025683" }, { "r": "4.6.0", "os": "mac", "version": "1.32", "date": "2026-06-03T08:54:27.000Z", "commit": "73ca13014b169df4b2e8aad306b1be57b683965a", "fileid": "03395516e1ce36bc1bbb5affc4c0b63a179e8fc33092ab7d483386d3803dccf9", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/xliaosdsu/actions/runs/26874025683" }, { "r": "4.6.0", "os": "wasm", "version": "1.32", "date": "2026-06-03T08:54:50.000Z", "commit": "73ca13014b169df4b2e8aad306b1be57b683965a", "fileid": "0ffb25775c3f7d8fce9cb27fe0c311ff480b3b8eaeb86a32672a88d924f6caaf", "status": "success", "buildurl": "https://github.com/r-universe/xliaosdsu/actions/runs/26874025683" }, { "r": "4.7.0", "os": "win", "version": "1.32", "date": "2026-06-03T08:54:01.000Z", "commit": "73ca13014b169df4b2e8aad306b1be57b683965a", "fileid": "1dbdf80be62a4aba8543ac82e096c74b3e77d6d9b6799146b8ca1dbed39c547f", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/xliaosdsu/actions/runs/26874025683" }, { "r": "4.5.3", "os": "win", "version": "1.32", "date": "2026-06-03T08:54:02.000Z", "commit": "73ca13014b169df4b2e8aad306b1be57b683965a", "fileid": "960fa8f970d18e9870d569e1e3e6836273b63b56ef2aa0d0198117c8e847bfa2", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/xliaosdsu/actions/runs/26874025683" }, { "r": "4.6.0", "os": "win", "version": "1.32", "date": "2026-06-03T08:53:56.000Z", "commit": "73ca13014b169df4b2e8aad306b1be57b683965a", "fileid": "3fdb02b27d42c8b8cdb2f62938ec2f58aecb3e9557d0dcc264a8173abc7a37eb", "status": "success", "check": "OK", "buildurl": "https://github.com/r-universe/xliaosdsu/actions/runs/26874025683" } ] }