{
  "_id": "6aec44081e2c7b3a4f53595e",
  "Package": "N2R",
  "Type": "Package",
  "Title": "Fast and Scalable Approximate k-Nearest Neighbor Search Methods\nusing 'N2' Library",
  "Version": "1.0.5",
  "Authors@R": "c(person(\"Peter\", \"Kharchenko\", email = \"Peter_Kharchenko@hms.harvard.edu\", role = c(\"aut\")), person(\"Viktor\", \"Petukhov\", email = \"viktor.s.petukhov@ya.ru\", role = c(\"aut\")), person(\"Dirk\", \"Eddelbuettel\", email=\"edd@debian.org\", role=c(\"ctb\")), person(\"Evan\", \"Biederstedt\", email = \"evan.biederstedt@gmail.com\", role=c(\"cre\", \"aut\")))",
  "Description": "Implements methods to perform fast approximate K-nearest\nneighbor search on input matrix. Algorithm based on the 'N2'\nimplementation of an approximate nearest neighbor search using\nhierarchical Navigable Small World (NSW) graphs. The original\nalgorithm is described in \"Efficient and Robust Approximate\nNearest Neighbor Search Using Hierarchical Navigable Small\nWorld Graphs\", Y. Malkov and D. Yashunin,\n<doi:10.1109/TPAMI.2018.2889473>,\n<doi:10.48550/arXiv.1603.09320>.",
  "License": "Apache License 2.0",
  "Encoding": "UTF-8",
  "RoxygenNote": "7.3.3",
  "URL": "https://github.com/kharchenkolab/N2R",
  "BugReports": "https://github.com/kharchenkolab/N2R/issues",
  "NeedsCompilation": "yes",
  "Author": "Peter Kharchenko [aut], Viktor Petukhov [aut], Dirk\nEddelbuettel [ctb], Evan Biederstedt [cre, aut]",
  "Maintainer": "Evan Biederstedt <evan.biederstedt@gmail.com>",
  "Repository": "https://kharchenkolab.r-universe.dev",
  "Date/Publication": "2026-03-31 14:02:54 UTC",
  "RemoteUrl": "https://github.com/kharchenkolab/n2r",
  "RemoteRef": "HEAD",
  "RemoteSha": "8045c294d3ab42a5261b6953b8a4e6b5e8bf6cf9",
  "Packaged": {
    "Date": "2026-11-05 08:46:14 UTC",
    "User": "root"
  },
  "_user": "kharchenkolab",
  "_type": "src",
  "_file": "N2R_1.0.5.tar.gz",
  "_fileid": "https://r2.ropensci.org/487b7ec2c98cceb31b9b34103e109b0cb5dccff58eb274d13cb48e9dbcfe36ac",
  "_filesize": 109051,
  "_sha256": "487b7ec2c98cceb31b9b34103e109b0cb5dccff58eb274d13cb48e9dbcfe36ac",
  "_expires": "2027-02-13T08:53:26.000Z",
  "_created": "2026-11-05T08:46:14.000Z",
  "_published": "2026-11-05T08:53:28.790Z",
  "_upstream": "https://github.com/kharchenkolab/n2r",
  "_status": "success",
  "_maintainer": {
    "name": "Evan Biederstedt",
    "email": "evan.biederstedt@gmail.com",
    "login": "evanbiederstedt",
    "description": "",
    "uuid": 6968193
  },
  "_jobs": [
    {
      "job": 127142978592,
      "time": 127,
      "config": "linux-devel-arm64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "13399734910"
    },
    {
      "job": 127142978407,
      "time": 140,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "13401161378"
    },
    {
      "job": 127142978473,
      "time": 120,
      "config": "linux-release-arm64",
      "r": "4.6.2",
      "check": "OK",
      "artifact": "13400453978"
    },
    {
      "job": 127142978431,
      "time": 162,
      "config": "linux-release-x86_64",
      "r": "4.6.2",
      "check": "OK",
      "artifact": "13400637219"
    },
    {
      "job": 127142978400,
      "time": 187,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "13401226280"
    },
    {
      "job": 127142978491,
      "time": 359,
      "config": "macos-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "13401625201"
    },
    {
      "job": 127142978313,
      "time": 177,
      "config": "macos-release-arm64",
      "r": "4.6.2",
      "check": "OK",
      "artifact": "13400279776"
    },
    {
      "job": 127142978435,
      "time": 233,
      "config": "macos-release-x86_64",
      "r": "4.6.2",
      "check": "OK",
      "artifact": "13401315576"
    },
    {
      "job": 127141476597,
      "time": 208,
      "config": "source",
      "r": "4.6.2",
      "check": "OK",
      "artifact": "13400393622"
    },
    {
      "job": 127142978264,
      "time": 129,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "13400388118"
    },
    {
      "job": 127142978468,
      "time": 308,
      "config": "windows-devel-arm64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "13400229021"
    },
    {
      "job": 127142978406,
      "time": 154,
      "config": "windows-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "13399844771"
    },
    {
      "job": 127142978973,
      "time": 124,
      "config": "windows-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "13401170778"
    },
    {
      "job": 127142978454,
      "time": 267,
      "config": "windows-release-arm64",
      "r": "4.6.2",
      "check": "OK",
      "artifact": "13400932342"
    },
    {
      "job": 127142978340,
      "time": 149,
      "config": "windows-release-x86_64",
      "r": "4.6.2",
      "check": "OK",
      "artifact": "13400184903"
    }
  ],
  "_buildurl": "https://github.com/r-universe/kharchenkolab/actions/runs/41996647751",
  "_commit": {
    "id": "8045c294d3ab42a5261b6953b8a4e6b5e8bf6cf9",
    "author": "evanbiederstedt <evan.biederstedt@gmail.com>",
    "committer": "evanbiederstedt <evan.biederstedt@gmail.com>",
    "message": "changelog clarification\n",
    "time": 1774965774
  },
  "_distro": "resolute",
  "_host": "GitHub-Actions",
  "_registered": true,
  "_dependencies": [
    {
      "package": "Matrix",
      "role": "Depends"
    },
    {
      "package": "Rcpp",
      "role": "LinkingTo"
    },
    {
      "package": "BH",
      "role": "LinkingTo"
    },
    {
      "package": "RcppSpdlog",
      "role": "LinkingTo"
    },
    {
      "package": "RcppEigen",
      "role": "LinkingTo"
    },
    {
      "package": "Rcpp",
      "version": ">= 1.0.4",
      "role": "Imports"
    },
    {
      "package": "testthat",
      "role": "Suggests"
    }
  ],
  "_owner": "kharchenkolab",
  "_selfowned": true,
  "_usedby": 3,
  "_updates": [
    {
      "week": "2026-10",
      "n": 6
    },
    {
      "week": "2026-11",
      "n": 12
    },
    {
      "week": "2026-12",
      "n": 4
    },
    {
      "week": "2026-14",
      "n": 3
    }
  ],
  "_tags": [
    {
      "name": "1.0.4",
      "date": "2026-03-06"
    },
    {
      "name": "1.0.5",
      "date": "2026-03-30"
    }
  ],
  "_stars": 10,
  "_contributors": [
    {
      "user": "evanbiederstedt",
      "count": 131,
      "uuid": 6968193
    },
    {
      "user": "pkharchenko",
      "count": 2,
      "uuid": 11860978
    },
    {
      "user": "eddelbuettel",
      "count": 1,
      "uuid": 673121
    }
  ],
  "_userbio": {
    "uuid": 67511277,
    "type": "organization",
    "name": "Kharchenko Lab",
    "followers": 95
  },
  "_downloads": {
    "count": 846,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/N2R"
  },
  "_devurl": "https://github.com/kharchenkolab/n2r",
  "_searchresults": 5,
  "_topics": [
    "cpp"
  ],
  "_abi": {
    "exports": [],
    "imports": [
      {
        "key": "Rcpp::Rcpp_precious_preserve()",
        "hash": "33a97ea62b293da6"
      },
      {
        "key": "Rcpp::Rcpp_precious_remove()",
        "hash": "63d26947ba7e1377"
      },
      {
        "key": "Rcpp::dataptr()",
        "hash": "54e69ad2e6668c83"
      },
      {
        "key": "Rcpp::demangle()",
        "hash": "b0cfd6754c5ebc4e"
      },
      {
        "key": "Rcpp::enterRNGScope()",
        "hash": "a04a299137cef947"
      },
      {
        "key": "Rcpp::exitRNGScope()",
        "hash": "a04a299137cef947"
      },
      {
        "key": "Rcpp::rcpp_get_stack_trace()",
        "hash": "c684a9bbe15cdc52"
      },
      {
        "key": "Rcpp::rcpp_set_stack_trace()",
        "hash": "33a97ea62b293da6"
      }
    ]
  },
  "_rbuild": "4.6.2",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/manual.pdf",
    "extra/N2R.html",
    "extra/readme.html",
    "extra/readme.md"
  ],
  "_homeurl": "https://github.com/kharchenkolab/n2r",
  "_realowner": "kharchenkolab",
  "_cranurl": true,
  "_releases": [
    {
      "version": "0.1.0",
      "date": "2020-09-29"
    },
    {
      "version": "0.1.1",
      "date": "2020-12-14"
    },
    {
      "version": "1.0.0",
      "date": "2021-11-19"
    },
    {
      "version": "1.0.1",
      "date": "2022-01-18"
    },
    {
      "version": "1.0.2",
      "date": "2024-02-26"
    },
    {
      "version": "1.0.3",
      "date": "2024-02-26"
    },
    {
      "version": "1.0.4",
      "date": "2026-03-06"
    },
    {
      "version": "1.0.5",
      "date": "2026-03-30"
    }
  ],
  "_exports": [
    "crossKnn",
    "Knn"
  ],
  "_help": [
    {
      "page": "checkOpenMP",
      "title": "boolean to check OpenMP exists",
      "topics": [
        "checkOpenMP"
      ]
    },
    {
      "page": "crossKnn",
      "title": "Perform fast approximate K-nearest neighbor search of rows input matrix mA in rows of matrix mB.",
      "topics": [
        "crossKnn"
      ]
    },
    {
      "page": "Knn",
      "title": "Perform fast approximate K-nearest neighbor search on rows of the input matrix m.",
      "topics": [
        "Knn"
      ]
    }
  ],
  "_readme": "https://github.com/kharchenkolab/n2r/raw/HEAD/README.md",
  "_rundeps": [
    "BH",
    "lattice",
    "Matrix",
    "Rcpp",
    "RcppEigen",
    "RcppSpdlog"
  ],
  "_sysdeps": [
    {
      "shlib": "libstdc++",
      "package": "libstdc++6",
      "source": "gcc",
      "version": "16-20260322-1ubuntu1",
      "name": "c++",
      "homepage": "http://gcc.gnu.org/",
      "description": "GNU Standard C++ Library v3"
    }
  ],
  "_score": 5.556302500767288,
  "_indexed": true,
  "_nocasepkg": "n2r",
  "_universes": [
    "kharchenkolab",
    "evanbiederstedt"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.0.5",
      "date": "2026-11-05T08:48:27.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "8045c294d3ab42a5261b6953b8a4e6b5e8bf6cf9",
      "fileid": "https://r2.ropensci.org/89ea62f4836366725d38edc727e98d8f0431fb706d0ec28c44a58a9b3b914ad0",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/kharchenkolab/actions/runs/41996647751"
    },
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.0.5",
      "date": "2026-11-05T08:48:39.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "8045c294d3ab42a5261b6953b8a4e6b5e8bf6cf9",
      "fileid": "https://r2.ropensci.org/7a0f1808cb48f4ea66c0c3c6da04abd9f0bde91e1c4cc068c341e88d7d2e794b",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/kharchenkolab/actions/runs/41996647751"
    },
    {
      "r": "4.6.2",
      "os": "linux",
      "version": "1.0.5",
      "date": "2026-11-05T08:48:23.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "8045c294d3ab42a5261b6953b8a4e6b5e8bf6cf9",
      "fileid": "https://r2.ropensci.org/1177b7ac69c4dd7d939ee455ed6c28027f49fef8f8805dedd1fb8af2d6609ac7",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/kharchenkolab/actions/runs/41996647751"
    },
    {
      "r": "4.6.2",
      "os": "linux",
      "version": "1.0.5",
      "date": "2026-11-05T08:48:55.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "8045c294d3ab42a5261b6953b8a4e6b5e8bf6cf9",
      "fileid": "https://r2.ropensci.org/5ad4455d900f37cdfd0e6805fcb9429783e7b512f28c6d15936d47ee76ce89eb",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/kharchenkolab/actions/runs/41996647751"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.0.5",
      "date": "2026-11-05T08:48:56.000Z",
      "arch": "aarch64",
      "commit": "8045c294d3ab42a5261b6953b8a4e6b5e8bf6cf9",
      "fileid": "https://r2.ropensci.org/c5b9c30158b259660192f09b246bcb3448a9630107734c82680d8e7e26f7cfa7",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/kharchenkolab/actions/runs/41996647751"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.0.5",
      "date": "2026-11-05T08:51:14.000Z",
      "arch": "x86_64",
      "commit": "8045c294d3ab42a5261b6953b8a4e6b5e8bf6cf9",
      "fileid": "https://r2.ropensci.org/8e749666d8f0c64316d614a56003f042693a709f4aebe4148d1fd2f81a61afb3",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/kharchenkolab/actions/runs/41996647751"
    },
    {
      "r": "4.6.2",
      "os": "mac",
      "version": "1.0.5",
      "date": "2026-11-05T08:48:53.000Z",
      "arch": "aarch64",
      "commit": "8045c294d3ab42a5261b6953b8a4e6b5e8bf6cf9",
      "fileid": "https://r2.ropensci.org/b1a43fc1cdbec2ad334ecd2749a5ccbdafe729a175268d34524515d84c377699",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/kharchenkolab/actions/runs/41996647751"
    },
    {
      "r": "4.6.2",
      "os": "mac",
      "version": "1.0.5",
      "date": "2026-11-05T08:49:13.000Z",
      "arch": "x86_64",
      "commit": "8045c294d3ab42a5261b6953b8a4e6b5e8bf6cf9",
      "fileid": "https://r2.ropensci.org/0921ba9e09da7773c5fc74f763fa5dd056e494e2409abaf123c4c42685196d33",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/kharchenkolab/actions/runs/41996647751"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "1.0.5",
      "date": "2026-11-05T08:48:47.000Z",
      "arch": "emscripten",
      "commit": "8045c294d3ab42a5261b6953b8a4e6b5e8bf6cf9",
      "fileid": "https://r2.ropensci.org/66f7b9c8d60a84df627f1f6d292bd03ba0cbb316f57c1aaa91bcfc0c172fcb0b",
      "status": "success",
      "buildurl": "https://github.com/r-universe/kharchenkolab/actions/runs/41996647751"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "1.0.5",
      "date": "2026-11-05T08:50:58.000Z",
      "arch": "aarch64",
      "commit": "8045c294d3ab42a5261b6953b8a4e6b5e8bf6cf9",
      "fileid": "https://r2.ropensci.org/da309ffa7bf6b51cb86414748a6828cb318e31928de45abc81906b393bf49129",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/kharchenkolab/actions/runs/41996647751"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "1.0.5",
      "date": "2026-11-05T08:48:09.000Z",
      "arch": "x86_64",
      "commit": "8045c294d3ab42a5261b6953b8a4e6b5e8bf6cf9",
      "fileid": "https://r2.ropensci.org/3105060ff7cf9e4bf07f4b6d1e455d6d3cb5c7dd83268acb59fd9b25d5f36cc8",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/kharchenkolab/actions/runs/41996647751"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "1.0.5",
      "date": "2026-11-05T08:48:03.000Z",
      "arch": "x86_64",
      "commit": "8045c294d3ab42a5261b6953b8a4e6b5e8bf6cf9",
      "fileid": "https://r2.ropensci.org/30dcb59e542c9086e6f388ce454af2f0d1ae27a544d4b71bc20acee63e8066ba",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/kharchenkolab/actions/runs/41996647751"
    },
    {
      "r": "4.6.2",
      "os": "win",
      "version": "1.0.5",
      "date": "2026-11-05T08:50:21.000Z",
      "arch": "aarch64",
      "commit": "8045c294d3ab42a5261b6953b8a4e6b5e8bf6cf9",
      "fileid": "https://r2.ropensci.org/c8449f5d40c7ccc072279c15c431bc6a03aadbcf28cd3b09a707178858644703",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/kharchenkolab/actions/runs/41996647751"
    },
    {
      "r": "4.6.2",
      "os": "win",
      "version": "1.0.5",
      "date": "2026-11-05T08:48:03.000Z",
      "arch": "x86_64",
      "commit": "8045c294d3ab42a5261b6953b8a4e6b5e8bf6cf9",
      "fileid": "https://r2.ropensci.org/2e0e1c8592841c37565fe2263d33bf6501360cd3cf101aafeb66fa1681e6220e",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/kharchenkolab/actions/runs/41996647751"
    }
  ]
}