{
  "_id": "6a49ea7a54b1f994258aa5b7",
  "Package": "softImpute",
  "Type": "Package",
  "Title": "Matrix Completion via Iterative Soft-Thresholded SVD",
  "Version": "1.4-3",
  "Date": "2025-05-12",
  "Authors@R": "c(person(\"Trevor\", \"Hastie\", role=c(\"aut\", \"cre\"),\nemail = \"hastie@stanford.edu\"),\nperson(\"Rahul\", \"Mazumder\", role=c(\"aut\"),\nemail = \"rahul.mazumder@gmail.com\"),\nperson(\"Balasubramanian\", \"Narasimhan\", role=c(\"ctb\"),\nemail = \"naras@stanford.edu\"))",
  "Description": "Iterative methods for matrix completion that use\nnuclear-norm regularization. There are two main approaches.The\none approach uses iterative soft-thresholded svds to impute the\nmissing values. The second approach uses alternating least\nsquares. Both have an 'EM' flavor, in that at each iteration\nthe matrix is completed with the current estimate. For large\nmatrices there is a special sparse-matrix class named\n\"Incomplete\" that efficiently handles all computations. The\npackage includes procedures for centering and scaling rows,\ncolumns or both, and for computing low-rank SVDs on large\nsparse centered matrices (i.e. principal components).",
  "License": "GPL-2",
  "Encoding": "UTF-8",
  "RoxygenNote": "7.3.2",
  "VignetteBuilder": "knitr",
  "NeedsCompilation": "yes",
  "Packaged": {
    "Date": "2026-07-05 05:20:11 UTC",
    "User": "root"
  },
  "Author": "Trevor Hastie [aut, cre], Rahul Mazumder [aut], Balasubramanian\nNarasimhan [ctb]",
  "Maintainer": "Trevor Hastie <hastie@stanford.edu>",
  "Repository": "https://trevorhastie.r-universe.dev",
  "Date/Publication": "2025-05-12 13:40:02 UTC",
  "RemoteUrl": "https://github.com/cran/softImpute",
  "RemoteRef": "HEAD",
  "RemoteSha": "10c21a39d43fe44f7a0c0c88962681081c216f53",
  "_user": "trevorhastie",
  "_type": "src",
  "_file": "softImpute_1.4-3.tar.gz",
  "_fileid": "https://r2.ropensci.org/3e565e7c3c89733c295660cf762298e22f24b41ef671eb499f451891b701d773",
  "_filesize": 253678,
  "_sha256": "3e565e7c3c89733c295660cf762298e22f24b41ef671eb499f451891b701d773",
  "_expires": "2026-10-13T05:24:09.000Z",
  "_created": "2026-07-05T05:20:11.000Z",
  "_published": "2026-07-05T05:24:10.767Z",
  "_jobs": [
    {
      "job": 85195261724,
      "time": 145,
      "config": "linux-devel-arm64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "8088605606"
    },
    {
      "job": 85195261707,
      "time": 161,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "8088607211"
    },
    {
      "job": 85195261692,
      "time": 148,
      "config": "linux-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8088606037"
    },
    {
      "job": 85195261702,
      "time": 158,
      "config": "linux-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8088606917"
    },
    {
      "job": 85195261752,
      "time": 94,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "8088599334"
    },
    {
      "job": 85195261741,
      "time": 171,
      "config": "macos-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "8088608534"
    },
    {
      "job": 85195261745,
      "time": 112,
      "config": "macos-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8088601187"
    },
    {
      "job": 85195261739,
      "time": 201,
      "config": "macos-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8088611824"
    },
    {
      "job": 85195089295,
      "time": 180,
      "config": "source",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8088588354"
    },
    {
      "job": 85195261697,
      "time": 97,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "8088599712"
    },
    {
      "job": 85195261696,
      "time": 104,
      "config": "windows-devel",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "8088600459"
    },
    {
      "job": 85195261701,
      "time": 103,
      "config": "windows-oldrel",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "8088600183"
    },
    {
      "job": 85195261703,
      "time": 96,
      "config": "windows-release",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8088599635"
    }
  ],
  "_host": "GitHub-Actions",
  "_buildurl": "https://github.com/r-universe/trevorhastie/actions/runs/28730469086",
  "_status": "success",
  "_upstream": "https://github.com/cran/softImpute",
  "_commit": {
    "id": "10c21a39d43fe44f7a0c0c88962681081c216f53",
    "author": "Trevor Hastie <hastie@stanford.edu>",
    "committer": "cran-robot <csardi.gabor+cran@gmail.com>",
    "message": "version 1.4-3\n",
    "time": 1747057202
  },
  "_maintainer": {
    "name": "Trevor Hastie",
    "email": "hastie@stanford.edu",
    "login": "trevorhastie",
    "description": "",
    "uuid": 13293253
  },
  "_distro": "resolute",
  "_registered": true,
  "_dependencies": [
    {
      "package": "Matrix",
      "role": "Depends"
    },
    {
      "package": "methods",
      "role": "Depends"
    },
    {
      "package": "knitr",
      "role": "Suggests"
    },
    {
      "package": "rmarkdown",
      "role": "Suggests"
    }
  ],
  "_owner": "cran",
  "_selfowned": true,
  "_usedby": 22,
  "_updates": [],
  "_tags": [],
  "_stars": 9,
  "_contributors": [
    {
      "user": "trevorhastie",
      "count": 5,
      "uuid": 13293253
    }
  ],
  "_userbio": {
    "uuid": 13293253,
    "type": "user",
    "name": "trevorhastie",
    "followers": 103
  },
  "_downloads": {
    "count": 2608,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/softImpute"
  },
  "_mentions": 12,
  "_searchresults": 325,
  "_rbuild": "4.6.1",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/readme.html",
    "extra/readme.md",
    "extra/softImpute.html",
    "manual.pdf"
  ],
  "_realowner": "trevorhastie",
  "_cranurl": false,
  "_releases": [
    {
      "version": "1.0",
      "date": "2013-04-03"
    },
    {
      "version": "1.4",
      "date": "2015-04-07"
    },
    {
      "version": "1.4-1",
      "date": "2021-05-09"
    },
    {
      "version": "1.4-2",
      "date": "2025-05-06"
    },
    {
      "version": "1.4-3",
      "date": "2025-05-12"
    }
  ],
  "_exports": [
    "as.matrix",
    "biScale",
    "clean.warm.start",
    "colMeans",
    "colSums",
    "complete",
    "deBias",
    "impute",
    "Incomplete",
    "lambda0",
    "norm",
    "rowMeans",
    "rowSums",
    "simpute.als",
    "simpute.svd",
    "softImpute",
    "softImpute.x.Incomplete",
    "softImpute.x.matrix",
    "splr",
    "Ssimpute.als",
    "Ssimpute.svd",
    "Ssvd.als",
    "svd.als"
  ],
  "_help": [
    {
      "page": "biScale",
      "title": "Standardize a matrix to have optionally row means zero and variances one, and/or column means zero and variances one.",
      "topics": [
        "biScale"
      ]
    },
    {
      "page": "clean.warm.start",
      "title": "rdname softImpute-internal",
      "topics": [
        "clean.warm.start"
      ]
    },
    {
      "page": "deBias",
      "title": "Recompute the '$d' component of a '\"softImpute\"' object through regression.",
      "topics": [
        "deBias"
      ]
    },
    {
      "page": "impute",
      "title": "make predictions from an svd object",
      "topics": [
        "complete",
        "complete,Incomplete-method",
        "complete,matrix-method",
        "impute"
      ]
    },
    {
      "page": "Incomplete",
      "title": "create a matrix of class 'Incomplete'",
      "topics": [
        "coerce,matrix-method",
        "Incomplete"
      ]
    },
    {
      "page": "Incomplete-class",
      "title": "Class '\"Incomplete\"'",
      "topics": [
        "as.matrix,Incomplete-method",
        "coerce,matrix,Incomplete-method",
        "coerce,sparseMatrix,Incomplete-method",
        "Incomplete-class"
      ]
    },
    {
      "page": "lambda0",
      "title": "compute the smallest value for 'lambda' such that 'softImpute(x,lambda)' returns the zero solution.",
      "topics": [
        "lambda0",
        "lambda0,Incomplete-method",
        "lambda0,sparseMatrix-method",
        "lambda0,SparseplusLowRank-method"
      ]
    },
    {
      "page": "simpute.als",
      "title": "rdname softImpute-internal",
      "topics": [
        "simpute.als"
      ]
    },
    {
      "page": "simpute.svd",
      "title": "rdname softImpute-internal",
      "topics": [
        "simpute.svd"
      ]
    },
    {
      "page": "softImpute",
      "title": "impute missing values for a matrix via nuclear-norm regularization.",
      "topics": [
        "softImpute"
      ]
    },
    {
      "page": "softImpute.x.Incomplete",
      "title": "rdname softImpute-internal",
      "topics": [
        "softImpute.x.Incomplete"
      ]
    },
    {
      "page": "softImpute.x.matrix",
      "title": "Internal softImpute functions",
      "topics": [
        "softImpute.x.matrix"
      ]
    },
    {
      "page": "SparseplusLowRank-class",
      "title": "Class '\"SparseplusLowRank\"'",
      "topics": [
        "%*%,ANY,SparseplusLowRank-method",
        "%*%,Matrix,SparseplusLowRank-method",
        "%*%,SparseplusLowRank,ANY-method",
        "%*%,SparseplusLowRank,Matrix-method",
        "as.matrix,SparseplusLowRank-method",
        "colMeans,SparseplusLowRank-method",
        "colSums,SparseplusLowRank-method",
        "dim,SparseplusLowRank-method",
        "norm,SparseplusLowRank,character-method",
        "rowMeans,SparseplusLowRank-method",
        "rowSums,SparseplusLowRank-method",
        "SparseplusLowRank-class"
      ]
    },
    {
      "page": "splr",
      "title": "create a 'SparseplusLowRank' object",
      "topics": [
        "splr"
      ]
    },
    {
      "page": "Ssimpute.als",
      "title": "rdname softImpute-internal",
      "topics": [
        "Ssimpute.als"
      ]
    },
    {
      "page": "Ssimpute.svd",
      "title": "rdname softImpute-internal",
      "topics": [
        "Ssimpute.svd"
      ]
    },
    {
      "page": "Ssvd.als",
      "title": "rdname softImpute-internal",
      "topics": [
        "Ssvd.als"
      ]
    },
    {
      "page": "svd.als",
      "title": "compute a low rank soft-thresholded svd by alternating orthogonal ridge regression",
      "topics": [
        "svd.als",
        "svd.als,sparseMatrix-method",
        "svd.als,SparseplusLowRank-method"
      ]
    }
  ],
  "_readme": "https://github.com/cran/softImpute/raw/HEAD/README.md",
  "_rundeps": [
    "lattice",
    "Matrix"
  ],
  "_vignettes": [
    {
      "source": "softImpute.Rmd",
      "filename": "softImpute.html",
      "title": "An Introduction to softImpute",
      "author": "Trevor Hastie",
      "engine": "knitr::rmarkdown",
      "headings": [
        "What softImpute solves",
        "A simple example",
        "Debiasing the fit",
        "Using the sparse matrix version",
        "Reduced rank SVD of large sparse matrices",
        "Warm starts and regularization paths"
      ],
      "created": "2015-02-13",
      "modified": "2025-05-07 02:16:49",
      "commits": 3
    }
  ],
  "_score": 8.400947397355969,
  "_indexed": true,
  "_nocasepkg": "softimpute",
  "_universes": [
    "trevorhastie"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.4-3",
      "date": "2026-07-05T05:22:33.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "10c21a39d43fe44f7a0c0c88962681081c216f53",
      "fileid": "https://r2.ropensci.org/fb4921995c3e6f8e788ade6a34e8679492e57027681a331da5ea893b51a4301c",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/trevorhastie/actions/runs/28730469086"
    },
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.4-3",
      "date": "2026-07-05T05:22:36.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "10c21a39d43fe44f7a0c0c88962681081c216f53",
      "fileid": "https://r2.ropensci.org/bc48fb4f2fc56fdc4c6bf91919fed9fca4de6adf2af397fd276e86a5c41ff01f",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/trevorhastie/actions/runs/28730469086"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "1.4-3",
      "date": "2026-07-05T05:22:35.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "10c21a39d43fe44f7a0c0c88962681081c216f53",
      "fileid": "https://r2.ropensci.org/8cb9e605223eb269f37a0eb529484425b7344327ebf70d35e8fd7705e7a68a77",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/trevorhastie/actions/runs/28730469086"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "1.4-3",
      "date": "2026-07-05T05:22:34.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "10c21a39d43fe44f7a0c0c88962681081c216f53",
      "fileid": "https://r2.ropensci.org/6867bd9a2a951cf0bdebc4f5bc3e8cd5d536bb3b5dce9ee4ae7c3e4cd4bf8de9",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/trevorhastie/actions/runs/28730469086"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.4-3",
      "date": "2026-07-05T05:21:40.000Z",
      "arch": "aarch64",
      "commit": "10c21a39d43fe44f7a0c0c88962681081c216f53",
      "fileid": "https://r2.ropensci.org/0a359ca172ba1355c650408da34c4234be2414eeb08c9cafc6a952c96515c790",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/trevorhastie/actions/runs/28730469086"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.4-3",
      "date": "2026-07-05T05:22:31.000Z",
      "arch": "x86_64",
      "commit": "10c21a39d43fe44f7a0c0c88962681081c216f53",
      "fileid": "https://r2.ropensci.org/1aa4a52fae1df6ca1ee0368204e9f6038491bcab71aaaa999f296885fe493799",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/trevorhastie/actions/runs/28730469086"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "1.4-3",
      "date": "2026-07-05T05:21:51.000Z",
      "arch": "aarch64",
      "commit": "10c21a39d43fe44f7a0c0c88962681081c216f53",
      "fileid": "https://r2.ropensci.org/2ad0369448a460183cc6c7e89cce740237f0971d5fe70f8ddecd2cc4ea137ff5",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/trevorhastie/actions/runs/28730469086"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "1.4-3",
      "date": "2026-07-05T05:23:00.000Z",
      "arch": "x86_64",
      "commit": "10c21a39d43fe44f7a0c0c88962681081c216f53",
      "fileid": "https://r2.ropensci.org/c89fff77266c3e7b5948f1a8b9e2390a00251a0607cb60dffdb7bf6656ff5e0f",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/trevorhastie/actions/runs/28730469086"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "1.4-3",
      "date": "2026-07-05T05:22:05.000Z",
      "arch": "emscripten",
      "commit": "10c21a39d43fe44f7a0c0c88962681081c216f53",
      "fileid": "https://r2.ropensci.org/06628d115d1cd65d04c27f21c495d2f0fd43422624ff68916788a0a74e96fbd2",
      "status": "success",
      "buildurl": "https://github.com/r-universe/trevorhastie/actions/runs/28730469086"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "1.4-3",
      "date": "2026-07-05T05:21:27.000Z",
      "arch": "x86_64",
      "commit": "10c21a39d43fe44f7a0c0c88962681081c216f53",
      "fileid": "https://r2.ropensci.org/b0f5b4ec9ade6f8595522f081f8f4e11edeb5640915498359d49effa24b63222",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/trevorhastie/actions/runs/28730469086"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "1.4-3",
      "date": "2026-07-05T05:21:23.000Z",
      "arch": "x86_64",
      "commit": "10c21a39d43fe44f7a0c0c88962681081c216f53",
      "fileid": "https://r2.ropensci.org/602cb6796bde7091e1e3710c8738c25d28fb844bdba3df0fc906bbec079e2a4c",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/trevorhastie/actions/runs/28730469086"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "1.4-3",
      "date": "2026-07-05T05:21:17.000Z",
      "arch": "x86_64",
      "commit": "10c21a39d43fe44f7a0c0c88962681081c216f53",
      "fileid": "https://r2.ropensci.org/4999e2612a446627bc07f6de30d3f92b4437bcae56e5be51a170b5cdf02ffff6",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/trevorhastie/actions/runs/28730469086"
    }
  ]
}