{
  "_id": "6a1025acacfb0bcc41c8ed7f",
  "Package": "tdarec",
  "Title": "A 'recipes' Extension for Persistent Homology and Its\nVectorizations",
  "Version": "0.2.1",
  "Authors@R": "person(\"Jason Cory\", \"Brunson\", , \"cornelioid@gmail.com\", role = c(\"cre\", \"aut\"))",
  "Description": "Topological data analytic methods in machine learning rely\non vectorizations of the persistence diagrams that encode\npersistent homology, as surveyed by Ali &al (2000)\n<doi:10.48550/arXiv.2212.09703>.  Persistent homology can be\ncomputed using 'TDA' and 'ripserr' and vectorized using\n'TDAvec'.  The Tidymodels package collection modularizes\nmachine learning in R for straightforward extensibility; see\nKuhn & Silge (2022, ISBN:978-1-4920-9644-3).  These 'recipe'\nsteps and 'dials' tuners make efficient algorithms for\ncomputing and vectorizing persistence diagrams available for\nTidymodels workflows.",
  "License": "GPL (>= 3)",
  "URL": "https://github.com/tdaverse/tdarec",
  "BugReports": "https://github.com/tdaverse/tdarec/issues",
  "VignetteBuilder": "knitr",
  "Config/testthat/edition": "3",
  "Encoding": "UTF-8",
  "LazyData": "true",
  "Roxygen": "list(markdown = TRUE)",
  "RoxygenNote": "7.3.2",
  "Config/pak/sysreqs": "libicu-dev",
  "Repository": "https://tdaverse.r-universe.dev",
  "Date/Publication": "2026-04-13 12:32:10 UTC",
  "RemoteUrl": "https://github.com/tdaverse/tdarec",
  "RemoteRef": "HEAD",
  "RemoteSha": "bc9706077064d755b089cccdc1b5133d7e0b72c9",
  "NeedsCompilation": "no",
  "Packaged": {
    "Date": "2026-05-13 09:29:09 UTC",
    "User": "root"
  },
  "Author": "Jason Cory Brunson [cre, aut]",
  "Maintainer": "Jason Cory Brunson <cornelioid@gmail.com>",
  "MD5sum": "84f79c281cb7b9782a761bf17ac4132e",
  "_user": "tdaverse",
  "_type": "src",
  "_file": "tdarec_0.2.1.tar.gz",
  "_fileid": "a54abba38ebd166a754afe984a40c6de25add2f4c2b22a7b86dbbaf860cc55d7",
  "_filesize": 1111083,
  "_sha256": "a54abba38ebd166a754afe984a40c6de25add2f4c2b22a7b86dbbaf860cc55d7",
  "_created": "2026-05-13T09:29:09.000Z",
  "_published": "2026-05-22T09:45:16.353Z",
  "_distro": "noble",
  "_jobs": [
    {
      "job": 77355159194,
      "time": 252,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "6966509706"
    },
    {
      "job": 77355159150,
      "time": 206,
      "config": "linux-release-x86_64",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "6966495804"
    },
    {
      "job": 77355159165,
      "time": 291,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "6966523089"
    },
    {
      "job": 77355159455,
      "time": 164,
      "config": "macos-release-arm64",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "6966479685"
    },
    {
      "job": 77355158482,
      "time": 249,
      "config": "source",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "6966420478"
    },
    {
      "job": 77355158615,
      "time": 152,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "7157568028"
    },
    {
      "job": 77355159080,
      "time": 207,
      "config": "windows-devel",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "6966494526"
    },
    {
      "job": 77355159208,
      "time": 171,
      "config": "windows-oldrel",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "6966483030"
    },
    {
      "job": 77355159020,
      "time": 192,
      "config": "windows-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "6966489783"
    }
  ],
  "_buildurl": "https://github.com/r-universe/tdaverse/actions/runs/25790349673",
  "_status": "success",
  "_host": "GitHub-Actions",
  "_upstream": "https://github.com/tdaverse/tdarec",
  "_commit": {
    "id": "bc9706077064d755b089cccdc1b5133d7e0b72c9",
    "author": "Jason Cory Brunson <cornelioid@gmail.com>",
    "committer": "Jason Cory Brunson <cornelioid@gmail.com>",
    "message": "rebuild site\n",
    "time": 1776083530
  },
  "_maintainer": {
    "name": "Jason Cory Brunson",
    "email": "cornelioid@gmail.com",
    "login": "corybrunson",
    "mastodon": "@cornelioid@mastodon.social",
    "uuid": 7768027
  },
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 3.5.0",
      "role": "Depends"
    },
    {
      "package": "recipes",
      "version": ">= 0.1.17",
      "role": "Depends"
    },
    {
      "package": "dials",
      "role": "Depends"
    },
    {
      "package": "rlang",
      "version": ">= 1.1.0",
      "role": "Imports"
    },
    {
      "package": "vctrs",
      "version": ">= 0.5.0",
      "role": "Imports"
    },
    {
      "package": "scales",
      "role": "Imports"
    },
    {
      "package": "tibble",
      "role": "Imports"
    },
    {
      "package": "purrr",
      "version": ">= 1.0.0",
      "role": "Imports"
    },
    {
      "package": "tidyr",
      "role": "Imports"
    },
    {
      "package": "magrittr",
      "role": "Imports"
    },
    {
      "package": "cli",
      "role": "Suggests"
    },
    {
      "package": "ripserr",
      "version": ">= 0.1.1",
      "role": "Suggests"
    },
    {
      "package": "TDA",
      "role": "Suggests"
    },
    {
      "package": "TDAvec",
      "version": ">= 0.1.4",
      "role": "Suggests"
    },
    {
      "package": "testthat",
      "version": ">= 3.0.0",
      "role": "Suggests"
    },
    {
      "package": "modeldata",
      "role": "Suggests"
    },
    {
      "package": "tdaunif",
      "role": "Suggests"
    },
    {
      "package": "knitr",
      "version": ">= 1.20",
      "role": "Suggests"
    },
    {
      "package": "rmarkdown",
      "version": ">= 1.10",
      "role": "Suggests"
    },
    {
      "package": "tidymodels",
      "role": "Suggests"
    },
    {
      "package": "ranger",
      "role": "Suggests"
    }
  ],
  "_owner": "tdaverse",
  "_selfowned": true,
  "_usedby": 0,
  "_updates": [
    {
      "week": "2025-20",
      "n": 14
    },
    {
      "week": "2025-21",
      "n": 4
    },
    {
      "week": "2025-22",
      "n": 1
    },
    {
      "week": "2025-23",
      "n": 1
    },
    {
      "week": "2025-24",
      "n": 14
    },
    {
      "week": "2025-25",
      "n": 5
    },
    {
      "week": "2025-37",
      "n": 5
    },
    {
      "week": "2025-39",
      "n": 6
    },
    {
      "week": "2025-41",
      "n": 1
    },
    {
      "week": "2026-15",
      "n": 3
    },
    {
      "week": "2026-16",
      "n": 1
    }
  ],
  "_tags": [
    {
      "name": "v0.2.1",
      "date": "2026-04-13"
    }
  ],
  "_topics": [
    "machine-learning",
    "persistent-homology",
    "recipes",
    "tidymodels",
    "topological-data-analysis",
    "vectorization"
  ],
  "_stars": 1,
  "_contributors": [
    {
      "user": "corybrunson",
      "count": 198,
      "uuid": 7768027
    },
    {
      "user": "hfrick",
      "count": 1,
      "uuid": 12950918
    }
  ],
  "_userbio": {
    "uuid": 74478337,
    "type": "organization",
    "name": "tdaverse",
    "description": "an inceptive R package collection for computational topology and topological data analysis"
  },
  "_downloads": {
    "count": 524,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/tdarec"
  },
  "_devurl": "https://github.com/tdaverse/tdarec",
  "_searchresults": 16,
  "_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/readme.html",
    "extra/readme.md",
    "extra/tdarec.html",
    "manual.pdf"
  ],
  "_homeurl": "https://github.com/tdaverse/tdarec",
  "_realowner": "tdaverse",
  "_cranurl": true,
  "_releases": [
    {
      "version": "0.1.0",
      "date": "2025-05-27"
    },
    {
      "version": "0.2.0",
      "date": "2025-06-20"
    },
    {
      "version": "0.2.1",
      "date": "2026-04-10"
    }
  ],
  "_exports": [
    "bandwidth",
    "birth_range",
    "blur",
    "blur_sigmas",
    "get_blur_range",
    "get_hom_range",
    "get_pairs_max",
    "get_pers_max_frac",
    "get_pers_min_mult",
    "hom_degree",
    "img_sigma",
    "life_support",
    "max_hom_degree",
    "num_bars",
    "num_bins",
    "num_coef",
    "num_levels",
    "pairs_max",
    "pairs_min",
    "pers_max",
    "pers_min",
    "pers_range",
    "ph_dim",
    "poly_type",
    "step_blur",
    "step_pd_degree",
    "step_pd_point_cloud",
    "step_pd_raster",
    "step_vpd_algebraic_functions",
    "step_vpd_betti_curve",
    "step_vpd_complex_polynomial",
    "step_vpd_descriptive_statistics",
    "step_vpd_euler_characteristic_curve",
    "step_vpd_normalized_life_curve",
    "step_vpd_persistence_block",
    "step_vpd_persistence_image",
    "step_vpd_persistence_landscape",
    "step_vpd_persistence_silhouette",
    "step_vpd_persistent_entropy_summary",
    "step_vpd_tent_template_functions",
    "step_vpd_tropical_coordinates",
    "tent_shift",
    "weight_func_pl",
    "weight_power"
  ],
  "_datasets": [
    {
      "name": "mnist_test",
      "title": "MNIST handwritten digits",
      "object": "mnist",
      "class": [
        "tbl_df",
        "tbl",
        "data.frame"
      ],
      "fields": [
        "digit",
        "label"
      ],
      "rows": 100,
      "table": true,
      "tojson": true
    },
    {
      "name": "mnist_train",
      "title": "MNIST handwritten digits",
      "object": "mnist",
      "class": [
        "tbl_df",
        "tbl",
        "data.frame"
      ],
      "fields": [
        "digit",
        "label"
      ],
      "rows": 600,
      "table": true,
      "tojson": true
    }
  ],
  "_help": [
    {
      "page": "blur",
      "title": "Gaussian blur of an array",
      "topics": [
        "blur"
      ]
    },
    {
      "page": "blur_sigmas",
      "title": "Standard deviation of Gaussian blur",
      "topics": [
        "blur_sigmas"
      ]
    },
    {
      "page": "hom_degree",
      "title": "(Maximum) topological dimension or homological degree",
      "topics": [
        "get_blur_range",
        "get_hom_range",
        "hom_degree",
        "max_hom_degree"
      ]
    },
    {
      "page": "mnist",
      "title": "MNIST handwritten digits",
      "topics": [
        "mnist",
        "mnist_test",
        "mnist_train"
      ]
    },
    {
      "page": "step_blur",
      "title": "Blur raster data",
      "topics": [
        "step_blur",
        "tidy.step_blur"
      ]
    },
    {
      "page": "step_pd_degree",
      "title": "Separate persistent pairs by homological degree",
      "concept": [
        "topological feature extraction via persistent homology"
      ],
      "topics": [
        "step_pd_degree",
        "tidy.step_pd_degree"
      ]
    },
    {
      "page": "step_pd_point_cloud",
      "title": "Persistent homology of point clouds",
      "concept": [
        "topological feature extraction via persistent homology"
      ],
      "topics": [
        "step_pd_point_cloud",
        "tidy.step_pd_point_cloud"
      ]
    },
    {
      "page": "step_pd_raster",
      "title": "Persistent homology of raster data (images)",
      "concept": [
        "topological feature extraction via persistent homology"
      ],
      "topics": [
        "step_pd_raster",
        "tidy.step_pd_raster"
      ]
    },
    {
      "page": "step_vpd_algebraic_functions",
      "title": "Algebraic Functions Vectorization of Persistent Homology",
      "topics": [
        "step_vpd_algebraic_functions",
        "tidy.step_vpd_algebraic_functions"
      ]
    },
    {
      "page": "step_vpd_betti_curve",
      "title": "Betti Curve Vectorization of Persistent Homology",
      "topics": [
        "step_vpd_betti_curve",
        "tidy.step_vpd_betti_curve"
      ]
    },
    {
      "page": "step_vpd_complex_polynomial",
      "title": "Complex Polynomial Vectorization of Persistent Homology",
      "topics": [
        "step_vpd_complex_polynomial",
        "tidy.step_vpd_complex_polynomial"
      ]
    },
    {
      "page": "step_vpd_descriptive_statistics",
      "title": "Descriptive Statistics Vectorization of Persistent Homology",
      "topics": [
        "step_vpd_descriptive_statistics",
        "tidy.step_vpd_descriptive_statistics"
      ]
    },
    {
      "page": "step_vpd_euler_characteristic_curve",
      "title": "Euler Characteristic Curve Vectorization of Persistent Homology",
      "topics": [
        "step_vpd_euler_characteristic_curve",
        "tidy.step_vpd_euler_characteristic_curve"
      ]
    },
    {
      "page": "step_vpd_normalized_life_curve",
      "title": "Normalized Life Curve Vectorization of Persistent Homology",
      "topics": [
        "step_vpd_normalized_life_curve",
        "tidy.step_vpd_normalized_life_curve"
      ]
    },
    {
      "page": "step_vpd_persistence_block",
      "title": "Persistence Block Vectorization of Persistent Homology",
      "topics": [
        "step_vpd_persistence_block",
        "tidy.step_vpd_persistence_block"
      ]
    },
    {
      "page": "step_vpd_persistence_image",
      "title": "Persistence Image Vectorization of Persistent Homology",
      "topics": [
        "step_vpd_persistence_image",
        "tidy.step_vpd_persistence_image"
      ]
    },
    {
      "page": "step_vpd_persistence_landscape",
      "title": "Persistence Landscape Vectorization of Persistent Homology",
      "topics": [
        "step_vpd_persistence_landscape",
        "tidy.step_vpd_persistence_landscape"
      ]
    },
    {
      "page": "step_vpd_persistence_silhouette",
      "title": "Persistence Silhouette Vectorization of Persistent Homology",
      "topics": [
        "step_vpd_persistence_silhouette",
        "tidy.step_vpd_persistence_silhouette"
      ]
    },
    {
      "page": "step_vpd_persistent_entropy_summary",
      "title": "Persistent Entropy Summary Vectorization of Persistent Homology",
      "topics": [
        "step_vpd_persistent_entropy_summary",
        "tidy.step_vpd_persistent_entropy_summary"
      ]
    },
    {
      "page": "step_vpd_tent_template_functions",
      "title": "Tent Template Functions Vectorization of Persistent Homology",
      "topics": [
        "step_vpd_tent_template_functions",
        "tidy.step_vpd_tent_template_functions"
      ]
    },
    {
      "page": "step_vpd_tropical_coordinates",
      "title": "Tropical Coordinates Vectorization of Persistent Homology",
      "topics": [
        "step_vpd_tropical_coordinates",
        "tidy.step_vpd_tropical_coordinates"
      ]
    },
    {
      "page": "vpd-dials",
      "title": "Tune Vectorizations of Persistent Homology",
      "topics": [
        "bandwidth",
        "img_sigma",
        "num_bars",
        "num_bins",
        "num_coef",
        "num_levels",
        "poly_type",
        "tent_shift",
        "vpd-dials",
        "weight_func_pl",
        "weight_power"
      ]
    },
    {
      "page": "vpd-finalizers",
      "title": "Finalizers for persistent homology vectorizations",
      "topics": [
        "get_pairs_max",
        "get_pers_max_frac",
        "get_pers_min_mult",
        "vpd-finalizers"
      ]
    },
    {
      "page": "vpd-summarizers",
      "title": "Summarize topological data",
      "topics": [
        "birth_range",
        "birth_range.data.frame",
        "birth_range.default",
        "birth_range.diagram",
        "birth_range.matrix",
        "birth_range.persistence",
        "birth_range.PHom",
        "life_support",
        "life_support.data.frame",
        "life_support.default",
        "life_support.diagram",
        "life_support.matrix",
        "life_support.persistence",
        "life_support.PHom",
        "pairs_max",
        "pairs_max.data.frame",
        "pairs_max.default",
        "pairs_max.diagram",
        "pairs_max.matrix",
        "pairs_max.persistence",
        "pairs_max.PHom",
        "pairs_min",
        "pairs_min.data.frame",
        "pairs_min.default",
        "pairs_min.diagram",
        "pairs_min.matrix",
        "pairs_min.persistence",
        "pairs_min.PHom",
        "pers_max",
        "pers_max.data.frame",
        "pers_max.default",
        "pers_max.diagram",
        "pers_max.matrix",
        "pers_max.persistence",
        "pers_max.PHom",
        "pers_min",
        "pers_min.data.frame",
        "pers_min.default",
        "pers_min.diagram",
        "pers_min.matrix",
        "pers_min.persistence",
        "pers_min.PHom",
        "pers_range",
        "pers_range.data.frame",
        "pers_range.default",
        "pers_range.diagram",
        "pers_range.matrix",
        "pers_range.persistence",
        "pers_range.PHom",
        "ph_dim",
        "ph_dim.array",
        "ph_dim.data.frame",
        "ph_dim.default",
        "ph_dim.dist",
        "ph_dim.matrix",
        "ph_dim.ts",
        "vpd-summarizers"
      ]
    }
  ],
  "_readme": "https://github.com/tdaverse/tdarec/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",
    "recipes",
    "rlang",
    "rpart",
    "S7",
    "scales",
    "sfd",
    "shape",
    "sparsevctrs",
    "SQUAREM",
    "stringi",
    "stringr",
    "survival",
    "tibble",
    "tidyr",
    "tidyselect",
    "timechange",
    "timeDate",
    "tzdb",
    "utf8",
    "vctrs",
    "viridisLite",
    "withr"
  ],
  "_vignettes": [
    {
      "source": "hyperparameter-tuning.Rmd",
      "filename": "hyperparameter-tuning.html",
      "title": "Tuning persistent homological hyperparameters",
      "engine": "knitr::rmarkdown",
      "headings": [
        "cubical persistent homology",
        "handwritten digits data",
        "preparation",
        "a fixed-parameter walkthrough",
        "pre-processing recipe",
        "classification forest",
        "fitting and evaluation",
        "tuning hyperparameters",
        "tunable pre-processing recipe",
        "tunable classification forest",
        "hyperparameter tuning"
      ],
      "created": "2024-11-16 17:53:35",
      "modified": "2026-04-10 15:52:46",
      "commits": 27
    }
  ],
  "_score": 4.944482672150169,
  "_indexed": true,
  "_nocasepkg": "tdarec",
  "_universes": [
    "tdaverse",
    "corybrunson"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "0.2.1",
      "date": "2026-05-13T09:32:11.000Z",
      "distro": "noble",
      "commit": "bc9706077064d755b089cccdc1b5133d7e0b72c9",
      "fileid": "6be740553f7496bc0cb89e460e5d776a13d3b0b04592cc28c4f738e06e4789f0",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/tdaverse/actions/runs/25790349673"
    },
    {
      "r": "4.6.0",
      "os": "linux",
      "version": "0.2.1",
      "date": "2026-05-13T09:31:57.000Z",
      "distro": "noble",
      "commit": "bc9706077064d755b089cccdc1b5133d7e0b72c9",
      "fileid": "8114e064a372f6256eec457e3dc1449ed73950b8600d787c60a343bd86b65b1e",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/tdaverse/actions/runs/25790349673"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "0.2.1",
      "date": "2026-05-13T09:31:27.000Z",
      "commit": "bc9706077064d755b089cccdc1b5133d7e0b72c9",
      "fileid": "75dfc3d9f5d7be826516447a455b7801e8245b405376d40fd8970dd5ef330c96",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/tdaverse/actions/runs/25790349673"
    },
    {
      "r": "4.6.0",
      "os": "mac",
      "version": "0.2.1",
      "date": "2026-05-13T09:31:04.000Z",
      "commit": "bc9706077064d755b089cccdc1b5133d7e0b72c9",
      "fileid": "a202c1b1813b75552865e43ce683ed78c3fd2a40d9f815c80935b659e1e0b380",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/tdaverse/actions/runs/25790349673"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "0.2.1",
      "date": "2026-05-13T09:31:13.000Z",
      "commit": "bc9706077064d755b089cccdc1b5133d7e0b72c9",
      "fileid": "fe48d8877d6d0913406d43044e067c20523e1d3f630383d33b6927e73a8ee699",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/tdaverse/actions/runs/25790349673"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "0.2.1",
      "date": "2026-05-13T09:30:48.000Z",
      "commit": "bc9706077064d755b089cccdc1b5133d7e0b72c9",
      "fileid": "18751517a49c1921acdc6acf2e8128ea174345b48dd1ce08c44cbc3f44b9763e",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/tdaverse/actions/runs/25790349673"
    },
    {
      "r": "4.6.0",
      "os": "win",
      "version": "0.2.1",
      "date": "2026-05-13T09:31:07.000Z",
      "commit": "bc9706077064d755b089cccdc1b5133d7e0b72c9",
      "fileid": "5f7f0874adfcc452159f0e654e9b6952a2986808a2bedfc14129c29c8402b2d4",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/tdaverse/actions/runs/25790349673"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "0.2.1",
      "date": "2026-05-22T09:44:47.000Z",
      "commit": "bc9706077064d755b089cccdc1b5133d7e0b72c9",
      "fileid": "e760a808c11d701e07452ebdbb9736b0211524b0bb02a30b9450500e897186e0",
      "status": "success",
      "buildurl": "https://github.com/r-universe/tdaverse/actions/runs/25790349673"
    }
  ]
}