{
  "_id": "6a218863cd65a98ecbd370a1",
  "Package": "picreg",
  "Type": "Package",
  "Title": "Variable Selection using the Pivotal Information Criterion",
  "Version": "0.1.3",
  "Date": "2026-06-03",
  "Authors@R": "c(\nperson(\"Maxime\", \"van Cutsem\",\nrole  = c(\"aut\", \"cre\"),\nemail = \"maxime.vancutsem@unige.ch\"),\nperson(\"Sylvain\", \"Sardy\",\nrole  = \"aut\",\nemail = \"sylvain.sardy@unige.ch\"))",
  "Description": "Sparse regression and classification via the Pivotal\nInformation Criterion (PIC), an alternative to the Bayesian\nInformation Criterion (BIC), cross-validation, and Lasso-based\ntuning. The regularization parameter is selected from a pivotal\nnull-distribution statistic, eliminating the need for\ncross-validation and yielding sharper support recovery.\nProvides Fast Iterative Shrinkage-Thresholding Algorithm\n(FISTA) optimization for the L1, Smoothly Clipped Absolute\nDeviation (SCAD), and Minimax Concave Penalty (MCP) penalties\nacross six response distributions: Gaussian, binomial, Poisson,\nexponential, Gumbel, and Cox. Under standard sparsity\nassumptions, the selector achieves a phase transition for exact\nsupport recovery, analogous to results in compressed sensing.\nSee Sardy, van Cutsem and van de Geer (2026)\n<doi:10.48550/arXiv.2603.04172>.",
  "License": "GPL-2",
  "URL": "https://github.com/VcMaxouuu/picreg,\nhttps://vcmaxouuu.github.io/picreg/",
  "BugReports": "https://github.com/VcMaxouuu/picreg/issues",
  "Encoding": "UTF-8",
  "LazyData": "true",
  "VignetteBuilder": "knitr",
  "SystemRequirements": "C++17",
  "RoxygenNote": "8.0.0",
  "Roxygen": "list(markdown = TRUE)",
  "Config/roxygen2/version": "8.0.0",
  "Config/testthat/edition": "3",
  "Repository": "https://vcmaxouuu.r-universe.dev",
  "Date/Publication": "2026-06-04 12:55:45 UTC",
  "RemoteUrl": "https://github.com/vcmaxouuu/picreg",
  "RemoteRef": "HEAD",
  "RemoteSha": "6fa7e6c049b55e75ccb218639b2ce71fde80d754",
  "NeedsCompilation": "yes",
  "Packaged": {
    "Date": "2026-06-04 14:07:37 UTC",
    "User": "root"
  },
  "Author": "Maxime van Cutsem [aut, cre],\nSylvain Sardy [aut]",
  "Maintainer": "Maxime van Cutsem <maxime.vancutsem@unige.ch>",
  "MD5sum": "9be29782e8f232fcb85d65cc467a2c85",
  "_user": "vcmaxouuu",
  "_type": "src",
  "_file": "picreg_0.1.3.tar.gz",
  "_fileid": "2eee4378a7030b0b22dfdc09f196eb0c5976025ccdf5b27cc495e080d61ca55a",
  "_filesize": 1162353,
  "_sha256": "2eee4378a7030b0b22dfdc09f196eb0c5976025ccdf5b27cc495e080d61ca55a",
  "_created": "2026-06-04T14:07:37.000Z",
  "_published": "2026-06-04T14:14:59.505Z",
  "_distro": "noble",
  "_jobs": [
    {
      "job": 79536994520,
      "time": 209,
      "config": "linux-devel-arm64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "7413727187"
    },
    {
      "job": 79536994822,
      "time": 197,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "7413721107"
    },
    {
      "job": 79536994632,
      "time": 190,
      "config": "linux-release-arm64",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7413720138"
    },
    {
      "job": 79536994461,
      "time": 243,
      "config": "linux-release-x86_64",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7413740720"
    },
    {
      "job": 79536994513,
      "time": 151,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "7413701705"
    },
    {
      "job": 79536994410,
      "time": 350,
      "config": "macos-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "7413786523"
    },
    {
      "job": 79536994512,
      "time": 212,
      "config": "macos-release-arm64",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7413727311"
    },
    {
      "job": 79536994674,
      "time": 357,
      "config": "macos-release-x86_64",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7413789774"
    },
    {
      "job": 79536050591,
      "time": 272,
      "config": "source",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7413637819"
    },
    {
      "job": 79536994386,
      "time": 167,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7413709027"
    },
    {
      "job": 79536994407,
      "time": 222,
      "config": "windows-devel",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "7413731891"
    },
    {
      "job": 79536994462,
      "time": 229,
      "config": "windows-oldrel",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "7413734338"
    },
    {
      "job": 79536994390,
      "time": 207,
      "config": "windows-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7413727524"
    }
  ],
  "_buildurl": "https://github.com/r-universe/vcmaxouuu/actions/runs/26956731237",
  "_status": "success",
  "_host": "GitHub-Actions",
  "_upstream": "https://github.com/vcmaxouuu/picreg",
  "_commit": {
    "id": "6fa7e6c049b55e75ccb218639b2ce71fde80d754",
    "author": "MaximeVanCutsem <max.vc.2002@gmail.com>",
    "committer": "MaximeVanCutsem <max.vc.2002@gmail.com>",
    "message": "Add pkgdown GitHub Pages deploy workflow\n",
    "time": 1780577745
  },
  "_maintainer": {
    "name": "Maxime van Cutsem",
    "email": "maxime.vancutsem@unige.ch"
  },
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 3.6.0",
      "role": "Depends"
    },
    {
      "package": "Rcpp",
      "role": "LinkingTo"
    },
    {
      "package": "RcppArmadillo",
      "role": "LinkingTo"
    },
    {
      "package": "stats",
      "role": "Imports"
    },
    {
      "package": "graphics",
      "role": "Imports"
    },
    {
      "package": "grDevices",
      "role": "Imports"
    },
    {
      "package": "parallel",
      "role": "Imports"
    },
    {
      "package": "future",
      "role": "Imports"
    },
    {
      "package": "future.apply",
      "role": "Imports"
    },
    {
      "package": "Matrix",
      "role": "Imports"
    },
    {
      "package": "Rcpp",
      "version": ">= 1.0.10",
      "role": "Imports"
    },
    {
      "package": "testthat",
      "version": ">= 3.0.0",
      "role": "Suggests"
    },
    {
      "package": "knitr",
      "role": "Suggests"
    },
    {
      "package": "rmarkdown",
      "role": "Suggests"
    },
    {
      "package": "xfun",
      "role": "Suggests"
    },
    {
      "package": "glmnet",
      "role": "Suggests"
    }
  ],
  "_owner": "vcmaxouuu",
  "_selfowned": true,
  "_usedby": 0,
  "_updates": [
    {
      "week": "2026-12",
      "n": 1
    },
    {
      "week": "2026-21",
      "n": 2
    },
    {
      "week": "2026-22",
      "n": 4
    },
    {
      "week": "2026-23",
      "n": 2
    }
  ],
  "_tags": [],
  "_stars": 0,
  "_contributors": [
    {
      "user": "vcmaxouuu",
      "count": 9,
      "uuid": 58298296
    }
  ],
  "_userbio": {
    "uuid": 58298296,
    "type": "user",
    "name": "VcMaxouuu"
  },
  "_downloads": {
    "count": 0,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/picreg"
  },
  "_devurl": "https://github.com/vcmaxouuu/picreg",
  "_pkgdown": "https://vcmaxouuu.github.io/picreg/",
  "_topics": [
    "openblas",
    "cpp"
  ],
  "_rbuild": "4.6.0",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/picreg.html",
    "extra/readme.html",
    "extra/readme.md",
    "manual.pdf"
  ],
  "_homeurl": "https://github.com/vcmaxouuu/picreg",
  "_realowner": "vcmaxouuu",
  "_cranurl": true,
  "_releases": [
    {
      "version": "0.1.2",
      "date": "2026-06-03"
    }
  ],
  "_exports": [
    "assess",
    "baseline_functions",
    "concordance_index",
    "cox_partial_log_likelihood",
    "feature_effects_on_survival",
    "lambda_pdb",
    "pdb_asymptotic",
    "pdb_summary",
    "phase_transition",
    "pic",
    "plot_baseline",
    "plot_survival_curves",
    "predict_survival_function"
  ],
  "_datasets": [
    {
      "name": "BinomialExample",
      "title": "Small binary-classification dataset for the Binomial section of the vignette.",
      "object": "BinomialExample",
      "class": [
        "list"
      ],
      "fields": [],
      "table": false,
      "tojson": true
    },
    {
      "name": "CoxExample",
      "title": "Small survival dataset for the Cox section of the vignette.",
      "object": "CoxExample",
      "class": [
        "list"
      ],
      "fields": [],
      "table": false,
      "tojson": true
    },
    {
      "name": "QuickStartExample",
      "title": "Small Gaussian dataset for the introductory vignette.",
      "object": "QuickStartExample",
      "class": [
        "list"
      ],
      "fields": [],
      "table": false,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "assess",
      "title": "Assess performance of a 'pic' fit.",
      "topics": [
        "assess",
        "assess.pic"
      ]
    },
    {
      "page": "baseline_functions",
      "title": "Breslow baseline cumulative hazard and survival.",
      "topics": [
        "baseline_functions"
      ]
    },
    {
      "page": "BinomialExample",
      "title": "Small binary-classification dataset for the Binomial section of the vignette.",
      "topics": [
        "BinomialExample"
      ]
    },
    {
      "page": "coef.pic",
      "title": "Coefficients of a fitted pic model.",
      "topics": [
        "coef.pic"
      ]
    },
    {
      "page": "concordance_index",
      "title": "Harrell's concordance index.",
      "topics": [
        "concordance_index"
      ]
    },
    {
      "page": "cox_partial_log_likelihood",
      "title": "Breslow partial log-likelihood (negative, normalized by 'n').",
      "topics": [
        "cox_partial_log_likelihood"
      ]
    },
    {
      "page": "CoxExample",
      "title": "Small survival dataset for the Cox section of the vignette.",
      "topics": [
        "CoxExample"
      ]
    },
    {
      "page": "feature_effects_on_survival",
      "title": "Effect of one feature on the Cox survival curve.",
      "topics": [
        "feature_effects_on_survival"
      ]
    },
    {
      "page": "lambda_pdb",
      "title": "Pivotal Detection Boundary regularization selector",
      "topics": [
        "lambda_pdb"
      ]
    },
    {
      "page": "pdb_asymptotic",
      "title": "Asymptotic behavior of the PDB null distribution.",
      "topics": [
        "pdb_asymptotic"
      ]
    },
    {
      "page": "pdb_summary",
      "title": "Summary of the PDB lambda selector.",
      "topics": [
        "pdb_summary"
      ]
    },
    {
      "page": "phase_transition",
      "title": "Phase-transition analysis of support recovery.",
      "topics": [
        "phase_transition"
      ]
    },
    {
      "page": "pic",
      "title": "Sparse linear regression using the Pivotal Information Criterion.",
      "topics": [
        "pic"
      ]
    },
    {
      "page": "pic_families",
      "title": "GLM families for pic — descriptor layer.",
      "topics": [
        "pic_families"
      ]
    },
    {
      "page": "pic_methods",
      "title": "S3 methods for fitted pic objects.",
      "topics": [
        "pic_methods"
      ]
    },
    {
      "page": "pic_penalties",
      "title": "Sparsity-inducing penalties for pic.",
      "topics": [
        "pic_penalties"
      ]
    },
    {
      "page": "pic_plots",
      "title": "Plot methods for pic fits and diagnostics.",
      "topics": [
        "pic_plots"
      ]
    },
    {
      "page": "pic_survival",
      "title": "Survival utilities for the Cox family.",
      "topics": [
        "pic_survival"
      ]
    },
    {
      "page": "plot_baseline",
      "title": "Plot Cox baseline cumulative hazard and baseline survival.",
      "topics": [
        "plot_baseline"
      ]
    },
    {
      "page": "plot_survival_curves",
      "title": "Plot subject-specific Cox survival curves.",
      "topics": [
        "plot_survival_curves"
      ]
    },
    {
      "page": "plot.pic",
      "title": "Horizontal lollipop plot of the non-zero coefficients of a pic fit.",
      "topics": [
        "plot.pic"
      ]
    },
    {
      "page": "plot.pic.lambda_pdb",
      "title": "Plot the PDB null distribution.",
      "topics": [
        "plot.pic.lambda_pdb"
      ]
    },
    {
      "page": "plot.pic.pdb_asymptotic",
      "title": "Plot of the PDB asymptotic behavior.",
      "topics": [
        "plot.pic.pdb_asymptotic"
      ]
    },
    {
      "page": "plot.pic.phase_transition",
      "title": "Phase-transition plot for a 'pic.phase_transition' object.",
      "topics": [
        "plot.pic.phase_transition"
      ]
    },
    {
      "page": "predict_survival_function",
      "title": "Survival curves for new data from a fitted Cox pic model.",
      "topics": [
        "predict_survival_function"
      ]
    },
    {
      "page": "predict.pic",
      "title": "Linear predictor / response prediction for a pic fit.",
      "topics": [
        "predict.pic"
      ]
    },
    {
      "page": "print.pic.family",
      "title": "Pretty-print a pic family descriptor.",
      "topics": [
        "print.pic.family"
      ]
    },
    {
      "page": "print.pic.pdb_asymptotic",
      "title": "Print PDB asymptotic diagnostic.",
      "topics": [
        "print.pic.pdb_asymptotic"
      ]
    },
    {
      "page": "print.pic.phase_transition",
      "title": "Print phase-transition analysis.",
      "topics": [
        "print.pic.phase_transition"
      ]
    },
    {
      "page": "print.summary.pic",
      "title": "Print a 'summary.pic' object.",
      "topics": [
        "print.summary.pic"
      ]
    },
    {
      "page": "QuickStartExample",
      "title": "Small Gaussian dataset for the introductory vignette.",
      "topics": [
        "QuickStartExample"
      ]
    },
    {
      "page": "summary.pic",
      "title": "Summarize a fitted pic model.",
      "topics": [
        "summary.pic"
      ]
    }
  ],
  "_readme": "https://github.com/vcmaxouuu/picreg/raw/HEAD/README.md",
  "_rundeps": [
    "codetools",
    "digest",
    "future",
    "future.apply",
    "globals",
    "lattice",
    "listenv",
    "Matrix",
    "parallelly",
    "Rcpp",
    "RcppArmadillo"
  ],
  "_sysdeps": [
    {
      "shlib": "libblas",
      "package": "libopenblas0-pthread",
      "source": "openblas",
      "version": "0.3.26+ds-1ubuntu0.1",
      "name": "openblas",
      "homepage": "https://www.openblas.net/",
      "description": "Optimized BLAS (linear algebra) library (shared lib, pthread)"
    },
    {
      "shlib": "libstdc++",
      "package": "libstdc++6",
      "source": "gcc",
      "version": "14.2.0-4ubuntu2~24.04.1",
      "name": "c++",
      "homepage": "http://gcc.gnu.org/",
      "description": "GNU Standard C++ Library v3"
    }
  ],
  "_vignettes": [
    {
      "source": "vignette.Rmd",
      "filename": "vignette.html",
      "title": "An introduction to picreg",
      "author": "Maxime van Cutsem, Sylvain Sardy",
      "engine": "knitr::rmarkdown",
      "headings": [
        "Introduction",
        "Installation",
        "Quick start",
        "Fitting a model",
        "Inspecting the fit",
        "Coefficients",
        "Predicting on new data",
        "Visualizing the fit",
        "Selecting the regularization parameter",
        "Calculation methods",
        "Visualizing the null distribution",
        "Supplying $\\lambda$ manually",
        "Generalised linear models",
        "Gaussian",
        "Binomial",
        "Poisson",
        "Exponential",
        "Gumbel",
        "Cox",
        "Assessing a fit",
        "A note on bias and refitting",
        "Support-recovery diagnostics",
        "Diagnostics",
        "Phase transition curves",
        "Asymptotic behavior of the pivotal statistic $\\Lambda$",
        "Comparison with other packages",
        "Support recovery on a small Gaussian benchmark",
        "A phase transition view",
        "A note on speed"
      ],
      "created": "2026-05-26 16:30:45",
      "modified": "2026-06-04 12:45:06",
      "commits": 3
    }
  ],
  "_score": 4.301029995663981,
  "_indexed": true,
  "_nocasepkg": "picreg",
  "_universes": [
    "vcmaxouuu"
  ],
  "_previous": "0.1.2",
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "0.1.3",
      "date": "2026-06-04T14:10:38.000Z",
      "distro": "noble",
      "arch": "aarch64",
      "commit": "6fa7e6c049b55e75ccb218639b2ce71fde80d754",
      "fileid": "3b71503207a5a3390fda0144ff6b0db9ca933528fee0b8df9cc79b632106e788",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/vcmaxouuu/actions/runs/26956731237"
    },
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "0.1.3",
      "date": "2026-06-04T14:10:31.000Z",
      "distro": "noble",
      "arch": "x86_64",
      "commit": "6fa7e6c049b55e75ccb218639b2ce71fde80d754",
      "fileid": "2888d3cffe5eafc7094e26a28509d4ceff0f101373dce30a4ebd2074216af9bf",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/vcmaxouuu/actions/runs/26956731237"
    },
    {
      "r": "4.6.0",
      "os": "linux",
      "version": "0.1.3",
      "date": "2026-06-04T14:10:28.000Z",
      "distro": "noble",
      "arch": "aarch64",
      "commit": "6fa7e6c049b55e75ccb218639b2ce71fde80d754",
      "fileid": "8769f4940aee419bb05ec41e6d97a0f755094ad73e9697937695ae17af22e1f4",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/vcmaxouuu/actions/runs/26956731237"
    },
    {
      "r": "4.6.0",
      "os": "linux",
      "version": "0.1.3",
      "date": "2026-06-04T14:10:43.000Z",
      "distro": "noble",
      "arch": "x86_64",
      "commit": "6fa7e6c049b55e75ccb218639b2ce71fde80d754",
      "fileid": "b408a89bf50b1481e10fed66d7a7d947dbb87e47438df6f637ca56b24ac06edf",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/vcmaxouuu/actions/runs/26956731237"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "0.1.3",
      "date": "2026-06-04T14:10:05.000Z",
      "arch": "aarch64",
      "commit": "6fa7e6c049b55e75ccb218639b2ce71fde80d754",
      "fileid": "3569f9d9741a2b64756cf1056cb7dab4a582289b44a96218ec27abe050dbe4af",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/vcmaxouuu/actions/runs/26956731237"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "0.1.3",
      "date": "2026-06-04T14:12:00.000Z",
      "arch": "x86_64",
      "commit": "6fa7e6c049b55e75ccb218639b2ce71fde80d754",
      "fileid": "6d2b00114785306bf6d86aa5ce1e470a6e4214b93c3013849f6b6ef674f9d810",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/vcmaxouuu/actions/runs/26956731237"
    },
    {
      "r": "4.6.0",
      "os": "mac",
      "version": "0.1.3",
      "date": "2026-06-04T14:10:32.000Z",
      "arch": "aarch64",
      "commit": "6fa7e6c049b55e75ccb218639b2ce71fde80d754",
      "fileid": "863d0122db41f8bd2e87b1274ffd04a6f3eb22ff0fac4a6f8070971c776b9c40",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/vcmaxouuu/actions/runs/26956731237"
    },
    {
      "r": "4.6.0",
      "os": "mac",
      "version": "0.1.3",
      "date": "2026-06-04T14:11:55.000Z",
      "arch": "x86_64",
      "commit": "6fa7e6c049b55e75ccb218639b2ce71fde80d754",
      "fileid": "66fda095679ed2d37f87e6adc8781ba9934aff9e5b2904870dec5b42768dd4e0",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/vcmaxouuu/actions/runs/26956731237"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "0.1.3",
      "date": "2026-06-04T14:10:25.000Z",
      "arch": "emscripten",
      "commit": "6fa7e6c049b55e75ccb218639b2ce71fde80d754",
      "fileid": "a007216b1f9f2944e45065a6cb5c479db0e3ff7da5f64ae6bef376975be5ef6a",
      "status": "success",
      "buildurl": "https://github.com/r-universe/vcmaxouuu/actions/runs/26956731237"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "0.1.3",
      "date": "2026-06-04T14:09:54.000Z",
      "arch": "x86_64",
      "commit": "6fa7e6c049b55e75ccb218639b2ce71fde80d754",
      "fileid": "ff6c3fee267dad642bb4ce4c7aa5ef12f731a30f69fd861ef28c69d94695fd88",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/vcmaxouuu/actions/runs/26956731237"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "0.1.3",
      "date": "2026-06-04T14:09:53.000Z",
      "arch": "x86_64",
      "commit": "6fa7e6c049b55e75ccb218639b2ce71fde80d754",
      "fileid": "0bce1d26f2d52511368e25b9c31e91ae4af2797ae6d0dd9309764bd6895b6058",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/vcmaxouuu/actions/runs/26956731237"
    },
    {
      "r": "4.6.0",
      "os": "win",
      "version": "0.1.3",
      "date": "2026-06-04T14:09:42.000Z",
      "arch": "x86_64",
      "commit": "6fa7e6c049b55e75ccb218639b2ce71fde80d754",
      "fileid": "945d2349be963d164936d3f5def65036dbc1130bc6df7a93c78551d99921a1fc",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/vcmaxouuu/actions/runs/26956731237"
    }
  ]
}