{
  "_id": "6ae0bddb3d0f299392dcde8a",
  "Package": "manifoldsculpting",
  "Type": "Package",
  "Title": "Nonlinear Dimensionality Reduction by Manifold Sculpting",
  "Version": "1.2.1",
  "Authors@R": "c(\nperson(\"Christian L.\", \"Goueguel\", , \"christian.goueguel@gmail.com\", role = c(\"aut\", \"cre\"))\n)",
  "Description": "Manifold Sculpting (Gashler, Ventura and Martinez (2008)\n<https://proceedings.neurips.cc/paper/2007/hash/c06d06da9666a219db15cf575aff2824-Abstract.html>)\nis an iterative nonlinear dimensionality reduction method. It\nrecords the distances and angles between each point and its\nnearest neighbors, then gradually scales the data out of the\ndimensions to be removed while moving the points in the\nremaining dimensions to restore these local relationships, as\nif surface tension were acting on the manifold. New samples are\nembedded by solving the same local problem against the training\nembedding. The neighbor search and the sculpting iterations are\nwritten in C++ with 'RcppArmadillo', and\nstep_manifold_sculpting() makes the method available as a\n'recipes' preprocessing step for 'tidymodels' workflows.",
  "License": "MIT + file LICENSE",
  "URL": "https://github.com/ChristianGoueguel/manifold-sculpting,\nhttps://christiangoueguel.com/manifold-sculpting/",
  "BugReports": "https://github.com/ChristianGoueguel/manifold-sculpting/issues",
  "VignetteBuilder": "knitr",
  "Config/testthat/edition": "3",
  "Encoding": "UTF-8",
  "Language": "en-US",
  "Roxygen": "list(markdown = TRUE)",
  "Config/roxygen2/version": "8.1.0",
  "Config/pak/sysreqs": "libicu-dev",
  "Repository": "https://christiangoueguel.r-universe.dev",
  "Date/Publication": "2026-10-27 12:47:41 UTC",
  "RemoteUrl": "https://github.com/ChristianGoueguel/manifold-sculpting",
  "RemoteRef": "HEAD",
  "RemoteSha": "e2905c24fae98494c3c828024732e0d4807d6319",
  "NeedsCompilation": "yes",
  "Packaged": {
    "Date": "2026-10-27 14:51:25 UTC",
    "User": "root"
  },
  "Author": "Christian L. Goueguel [aut, cre]",
  "Maintainer": "Christian L. Goueguel <christian.goueguel@gmail.com>",
  "_user": "christiangoueguel",
  "_type": "src",
  "_file": "manifoldsculpting_1.2.1.tar.gz",
  "_fileid": "https://r2.ropensci.org/67823c0877e06127087e7dddbfcef28e00c88421761667440240e50068171c48",
  "_filesize": 5161248,
  "_sha256": "67823c0877e06127087e7dddbfcef28e00c88421761667440240e50068171c48",
  "_expires": "2027-02-04T15:06:01.000Z",
  "_created": "2026-10-27T14:51:25.000Z",
  "_published": "2026-10-27T15:06:03.709Z",
  "_upstream": "https://github.com/ChristianGoueguel/manifold-sculpting",
  "_status": "success",
  "_maintainer": {
    "name": "Christian L. Goueguel",
    "email": "christian.goueguel@gmail.com",
    "login": "christiangoueguel",
    "description": "Optics | Laser Spectroscopy | Chemometrics ",
    "uuid": 59129468
  },
  "_jobs": [
    {
      "job": 122263026501,
      "time": 176,
      "config": "linux-devel-arm64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12742944643"
    },
    {
      "job": 122263026515,
      "time": 218,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12744416370"
    },
    {
      "job": 122263026472,
      "time": 188,
      "config": "linux-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12744046688"
    },
    {
      "job": 122263026557,
      "time": 219,
      "config": "linux-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12743109307"
    },
    {
      "job": 122263026391,
      "time": 188,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "12744527294"
    },
    {
      "job": 122263026820,
      "time": 322,
      "config": "macos-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "12744886340"
    },
    {
      "job": 122263026268,
      "time": 182,
      "config": "macos-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12744296703"
    },
    {
      "job": 122263026477,
      "time": 271,
      "config": "macos-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12743374363"
    },
    {
      "job": 122258903672,
      "time": 415,
      "config": "source",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12744390774"
    },
    {
      "job": 122263026252,
      "time": 111,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "12743367053"
    },
    {
      "job": 122263026584,
      "time": 297,
      "config": "windows-devel-arm64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12742873705"
    },
    {
      "job": 122263026408,
      "time": 227,
      "config": "windows-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "12744641241"
    },
    {
      "job": 122263026756,
      "time": 172,
      "config": "windows-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "12744271477"
    },
    {
      "job": 122263026530,
      "time": 294,
      "config": "windows-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12743572759"
    },
    {
      "job": 122263026496,
      "time": 160,
      "config": "windows-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "12744031807"
    }
  ],
  "_buildurl": "https://github.com/r-universe/christiangoueguel/actions/runs/40524079168",
  "_commit": {
    "id": "e2905c24fae98494c3c828024732e0d4807d6319",
    "author": "Christian L. Goueguel <59129468+ChristianGoueguel@users.noreply.github.com>",
    "committer": "GitHub <noreply@github.com>",
    "message": "Fix formatting in README for spectroscopy example\n\nRemoved extra line break in spectroscopy example.",
    "time": 1793105261
  },
  "_distro": "resolute",
  "_host": "GitHub-Actions",
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 4.1.0",
      "role": "Depends"
    },
    {
      "package": "recipes",
      "version": ">= 1.1.0",
      "role": "Depends"
    },
    {
      "package": "Rcpp",
      "role": "LinkingTo"
    },
    {
      "package": "RcppArmadillo",
      "role": "LinkingTo"
    },
    {
      "package": "cli",
      "role": "Imports"
    },
    {
      "package": "dials",
      "version": ">= 1.2.0",
      "role": "Imports"
    },
    {
      "package": "generics",
      "role": "Imports"
    },
    {
      "package": "Rcpp",
      "role": "Imports"
    },
    {
      "package": "rlang",
      "version": ">= 1.1.0",
      "role": "Imports"
    },
    {
      "package": "stats",
      "role": "Imports"
    },
    {
      "package": "tibble",
      "role": "Imports"
    },
    {
      "package": "vctrs",
      "role": "Imports"
    },
    {
      "package": "withr",
      "role": "Imports"
    },
    {
      "package": "ggplot2",
      "role": "Suggests"
    },
    {
      "package": "knitr",
      "role": "Suggests"
    },
    {
      "package": "parsnip",
      "role": "Suggests"
    },
    {
      "package": "rmarkdown",
      "role": "Suggests"
    },
    {
      "package": "testthat",
      "version": ">= 3.0.0",
      "role": "Suggests"
    },
    {
      "package": "workflows",
      "role": "Suggests"
    }
  ],
  "_owner": "christiangoueguel",
  "_selfowned": true,
  "_usedby": 0,
  "_updates": [
    {
      "week": "2026-43",
      "n": 6
    },
    {
      "week": "2026-44",
      "n": 7
    }
  ],
  "_tags": [],
  "_topics": [
    "dimensionality-reduction",
    "manifold-sculpting",
    "nonlinear-dimension-reduction",
    "openblas",
    "cpp"
  ],
  "_stars": 0,
  "_contributors": [
    {
      "user": "christiangoueguel",
      "count": 13,
      "uuid": 59129468
    }
  ],
  "_userbio": {
    "uuid": 59129468,
    "type": "user",
    "name": "Christian L. Goueguel",
    "followers": 10,
    "description": "Optics | Laser Spectroscopy | Chemometrics "
  },
  "_downloads": {
    "count": 0,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/manifoldsculpting"
  },
  "_devurl": "https://github.com/christiangoueguel/manifold-sculpting",
  "_pkgdown": "https://christiangoueguel.com/manifold-sculpting/",
  "_searchresults": 0,
  "_rbuild": "4.6.1",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/manifoldsculpting.html",
    "extra/manual.pdf",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md",
    "LICENSE"
  ],
  "_cranurl": false,
  "_exports": [
    "manifold_sculpting",
    "sim_s_curve",
    "sim_swiss_roll",
    "squishing_rate",
    "step_manifold_sculpting"
  ],
  "_help": [
    {
      "page": "manifold_sculpting",
      "title": "Manifold Sculpting",
      "topics": [
        "manifold_sculpting"
      ]
    },
    {
      "page": "predict.manifold_sculpting",
      "title": "Embed new samples with Manifold Sculpting",
      "topics": [
        "predict.manifold_sculpting"
      ]
    },
    {
      "page": "sim_manifolds",
      "title": "Simulated manifolds",
      "topics": [
        "sim_manifolds",
        "sim_swiss_roll",
        "sim_s_curve"
      ]
    },
    {
      "page": "squishing_rate",
      "title": "Squishing rate parameter",
      "topics": [
        "squishing_rate"
      ]
    },
    {
      "page": "step_manifold_sculpting",
      "title": "Manifold Sculpting signal extraction",
      "topics": [
        "step_manifold_sculpting",
        "tidy.step_manifold_sculpting"
      ]
    }
  ],
  "_pkglogo": "https://github.com/ChristianGoueguel/manifold-sculpting/raw/HEAD/man/figures/logo.png",
  "_readme": "https://github.com/ChristianGoueguel/manifold-sculpting/raw/HEAD/README.md",
  "_rundeps": [
    "class",
    "cli",
    "clock",
    "codetools",
    "cpp11",
    "data.table",
    "diagram",
    "dials",
    "DiceDesign",
    "digest",
    "dplyr",
    "farver",
    "future",
    "future.apply",
    "generics",
    "ggplot2",
    "globals",
    "glue",
    "gower",
    "gtable",
    "hardhat",
    "ipred",
    "isoband",
    "KernSmooth",
    "labeling",
    "lattice",
    "lava",
    "lifecycle",
    "listenv",
    "lubridate",
    "magrittr",
    "MASS",
    "Matrix",
    "nnet",
    "numDeriv",
    "parallelly",
    "pillar",
    "pkgconfig",
    "prodlim",
    "progressr",
    "purrr",
    "R6",
    "RColorBrewer",
    "Rcpp",
    "RcppArmadillo",
    "recipes",
    "rlang",
    "rpart",
    "S7",
    "scales",
    "sfd",
    "shape",
    "sparsevctrs",
    "SQUAREM",
    "stringi",
    "stringr",
    "survival",
    "tibble",
    "tidyr",
    "tidyselect",
    "timechange",
    "timeDate",
    "tzdb",
    "utf8",
    "vctrs",
    "viridisLite",
    "withr"
  ],
  "_sysdeps": [
    {
      "shlib": "liblapack",
      "package": "libopenblas0-pthread",
      "source": "openblas",
      "version": "0.3.32+ds-5",
      "name": "openblas",
      "homepage": "https://www.openblas.net/",
      "description": "Optimized BLAS (linear algebra) library (shared lib, pthread)"
    },
    {
      "shlib": "libblas",
      "package": "libopenblas0-pthread",
      "source": "openblas",
      "version": "0.3.32+ds-5",
      "name": "openblas",
      "homepage": "https://www.openblas.net/",
      "description": "Optimized BLAS (linear algebra) library (shared lib, pthread)"
    },
    {
      "shlib": "libstdc++",
      "package": "libstdc++6",
      "source": "gcc",
      "version": "16-20260322-1ubuntu1",
      "name": "c++",
      "homepage": "http://gcc.gnu.org/",
      "description": "GNU Standard C++ Library v3"
    }
  ],
  "_vignettes": [
    {
      "source": "comparison.Rmd",
      "filename": "comparison.html",
      "title": "Comparison with other nonlinear dimensionality reduction methods",
      "engine": "knitr::rmarkdown",
      "headings": [
        "The methods",
        "The test problems",
        "Measures of quality",
        "Results",
        "The embeddings",
        "Accuracy",
        "Neighborhoods and local distances",
        "Computing time",
        "Number of neighbors",
        "A closer look at the Swiss roll with a hole",
        "Computing time and sample size",
        "New samples",
        "Summary",
        "Reproducibility",
        "References"
      ],
      "created": "2026-10-25 20:01:33",
      "modified": "2026-10-25 20:01:33",
      "commits": 1
    },
    {
      "source": "spectroscopy.Rmd",
      "filename": "spectroscopy.html",
      "title": "Horseshoe effect: Unfolding the arch in NIR spectra of meat",
      "engine": "knitr::rmarkdown",
      "headings": [
        "The data",
        "Scatter correction",
        "The arch",
        "Two dimensions keep the arch",
        "One dimension unfolds it",
        "How stable is the coordinate?",
        "What drives the coordinate",
        "What unfolding does not do",
        "What we see",
        "Reproducibility",
        "References"
      ],
      "created": "2026-10-26 04:00:54",
      "modified": "2026-10-27 02:02:39",
      "commits": 5
    },
    {
      "source": "manifoldsculpting.Rmd",
      "filename": "manifoldsculpting.html",
      "title": "Introduction to manifoldsculpting",
      "engine": "knitr::rmarkdown",
      "headings": [
        "The algorithm",
        "An example: the S-curve",
        "Convergence and local minima",
        "Parameters",
        "New samples",
        "With recipes and tidymodels",
        "Other vignettes",
        "References"
      ],
      "created": "2026-10-25 18:04:08",
      "modified": "2026-10-26 04:00:54",
      "commits": 3
    }
  ],
  "_score": 3.4771212547196626,
  "_indexed": true,
  "_nocasepkg": "manifoldsculpting",
  "_universes": [
    "christiangoueguel"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.2.1",
      "date": "2026-10-27T14:53:33.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "e2905c24fae98494c3c828024732e0d4807d6319",
      "fileid": "https://r2.ropensci.org/f11e41d865a58116be4c9ea30a7f3c3a789e03de2561059cce440e95179de363",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/christiangoueguel/actions/runs/40524079168"
    },
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.2.1",
      "date": "2026-10-27T14:53:53.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "e2905c24fae98494c3c828024732e0d4807d6319",
      "fileid": "https://r2.ropensci.org/4ee1544fbafce9a21748d21bd7f58312bc278457b2cf9efc0289ffb56bef8a93",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/christiangoueguel/actions/runs/40524079168"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "1.2.1",
      "date": "2026-10-27T14:53:46.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "e2905c24fae98494c3c828024732e0d4807d6319",
      "fileid": "https://r2.ropensci.org/4f4865409daf6e05dd51231e2745741dae6521597dfe2d155176ae3376dfed6d",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/christiangoueguel/actions/runs/40524079168"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "1.2.1",
      "date": "2026-10-27T14:53:55.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "e2905c24fae98494c3c828024732e0d4807d6319",
      "fileid": "https://r2.ropensci.org/df3dbdfae53811de485927124eea24992bd2baabc2da1c91b5d8dd61497ae5f9",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/christiangoueguel/actions/runs/40524079168"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.2.1",
      "date": "2026-10-27T14:59:26.000Z",
      "arch": "aarch64",
      "commit": "e2905c24fae98494c3c828024732e0d4807d6319",
      "fileid": "https://r2.ropensci.org/c5c5097eb389b3580d351d3bcdb88c07f9b934900e1eb2d962082522709685dd",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/christiangoueguel/actions/runs/40524079168"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.2.1",
      "date": "2026-10-27T15:03:06.000Z",
      "arch": "x86_64",
      "commit": "e2905c24fae98494c3c828024732e0d4807d6319",
      "fileid": "https://r2.ropensci.org/0a97adc2de607bcd0d4230026e89ea391fe999073afe38c6f440e3d79e174726",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/christiangoueguel/actions/runs/40524079168"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "1.2.1",
      "date": "2026-10-27T14:54:28.000Z",
      "arch": "aarch64",
      "commit": "e2905c24fae98494c3c828024732e0d4807d6319",
      "fileid": "https://r2.ropensci.org/d4f16583cc9ca8f734ce0429d4d954ec4eeca5743a89fea5f2e9661ae05ecf24",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/christiangoueguel/actions/runs/40524079168"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "1.2.1",
      "date": "2026-10-27T15:00:50.000Z",
      "arch": "x86_64",
      "commit": "e2905c24fae98494c3c828024732e0d4807d6319",
      "fileid": "https://r2.ropensci.org/637482d072c98c3c182427e7b46e1fe37d3e9551c4fa892a18a647b584cf6cfe",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/christiangoueguel/actions/runs/40524079168"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "1.2.1",
      "date": "2026-10-27T14:53:36.000Z",
      "arch": "emscripten",
      "commit": "e2905c24fae98494c3c828024732e0d4807d6319",
      "fileid": "https://r2.ropensci.org/3549d54387205f58194068e7304e4caaf7810c622bab674d2db881ced0b40cf2",
      "status": "success",
      "buildurl": "https://github.com/r-universe/christiangoueguel/actions/runs/40524079168"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "1.2.1",
      "date": "2026-10-27T14:55:06.000Z",
      "arch": "aarch64",
      "commit": "e2905c24fae98494c3c828024732e0d4807d6319",
      "fileid": "https://r2.ropensci.org/b3f0b5e7be550fe9fe17fc125e9b1d9cbc92c198acb20b927ab1bbfcc5e368d4",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/christiangoueguel/actions/runs/40524079168"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "1.2.1",
      "date": "2026-10-27T14:53:00.000Z",
      "arch": "x86_64",
      "commit": "e2905c24fae98494c3c828024732e0d4807d6319",
      "fileid": "https://r2.ropensci.org/91822d9fa58d8ce4236abefdeb8c5033cbbb78bff051abb9f8d29c4caba477f7",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/christiangoueguel/actions/runs/40524079168"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "1.2.1",
      "date": "2026-10-27T14:52:51.000Z",
      "arch": "x86_64",
      "commit": "e2905c24fae98494c3c828024732e0d4807d6319",
      "fileid": "https://r2.ropensci.org/c542c31be4c143eb293e2ec30098f1a7ee5fd27d9bc56f3d17124e33bbddf2a9",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/christiangoueguel/actions/runs/40524079168"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "1.2.1",
      "date": "2026-10-27T14:55:12.000Z",
      "arch": "aarch64",
      "commit": "e2905c24fae98494c3c828024732e0d4807d6319",
      "fileid": "https://r2.ropensci.org/a858a47090b7fc06fbe4135188fea437ccc7318d71c84ebe68f172d9763242c4",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/christiangoueguel/actions/runs/40524079168"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "1.2.1",
      "date": "2026-10-27T14:52:53.000Z",
      "arch": "x86_64",
      "commit": "e2905c24fae98494c3c828024732e0d4807d6319",
      "fileid": "https://r2.ropensci.org/c3761daab885a2b6e217e5bc76ef7a22477015f06d7c44bdd8becda243340b65",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/christiangoueguel/actions/runs/40524079168"
    }
  ]
}