{
  "_id": "6a47968c2f27a93436c0ec5f",
  "Package": "bspline",
  "Type": "Package",
  "Title": "B-Spline Interpolation and Regression",
  "Version": "2.5.1",
  "Authors@R": "person(given = \"Serguei\",\nfamily = \"Sokol\",\nrole = c(\"aut\", \"cre\"),\nemail = \"sokol@insa-toulouse.fr\")",
  "Description": "Build and use B-splines for interpolation and regression.\nIn case of regression, equality constraints as well as\nmonotonicity and/or positivity of B-spline weights can be\nimposed. Moreover, knot positions can be on regular grid or be\npart of optimized parameters too (in addition to the spline\nweights). For this end, 'bspline' is able to calculate Jacobian\nof basis vectors as function of knot positions. User is\nprovided with functions calculating spline values at arbitrary\npoints. These functions can be differentiated and integrated to\nobtain B-splines calculating derivatives/integrals at any\npoint. B-splines of this package can simultaneously operate on\na series of curves sharing the same set of knots. 'bspline' is\nwritten with concern about computing performance that's why the\nbasis and Jacobian calculation is implemented in C++. The rest\nis implemented in R but without notable impact on computing\nspeed.",
  "URL": "https://github.com/MathsCell/bspline",
  "BugReports": "https://github.com/MathsCell/bspline/issues",
  "License": "GPL-2",
  "Encoding": "UTF-8",
  "RoxygenNote": "7.3.2",
  "Copyright": "INRAE/INSA/CNRS",
  "Repository": "https://mathscell.r-universe.dev",
  "Date/Publication": "2026-02-03 16:00:41 UTC",
  "RemoteUrl": "https://github.com/mathscell/bspline",
  "RemoteRef": "HEAD",
  "RemoteSha": "2a2d1714eadf267246919554a789e24406bf3cbb",
  "NeedsCompilation": "yes",
  "Packaged": {
    "Date": "2026-07-03 06:44:52 UTC",
    "User": "root"
  },
  "Author": "Serguei Sokol [aut, cre]",
  "Maintainer": "Serguei Sokol <sokol@insa-toulouse.fr>",
  "_user": "mathscell",
  "_type": "src",
  "_file": "bspline_2.5.1.tar.gz",
  "_fileid": "https://r2.ropensci.org/9c0fe91396305cf9299f4031ace918773ff39574b531aa399c5bc348e8489903",
  "_filesize": 150746,
  "_sha256": "9c0fe91396305cf9299f4031ace918773ff39574b531aa399c5bc348e8489903",
  "_expires": "2026-10-11T11:01:31.000Z",
  "_created": "2026-07-03T06:44:52.000Z",
  "_published": "2026-07-03T11:01:32.239Z",
  "_jobs": [
    {
      "job": 84986014502,
      "time": 149,
      "config": "linux-devel-arm64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "8059669052"
    },
    {
      "job": 84986014780,
      "time": 169,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "8059673448"
    },
    {
      "job": 84986015013,
      "time": 126,
      "config": "linux-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8059663189"
    },
    {
      "job": 84986014884,
      "time": 125,
      "config": "linux-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8059662324"
    },
    {
      "job": 84986015203,
      "time": 166,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "8059663133"
    },
    {
      "job": 84986014638,
      "time": 296,
      "config": "macos-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "8059696609"
    },
    {
      "job": 84986014867,
      "time": 191,
      "config": "macos-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8059669943"
    },
    {
      "job": 84986014602,
      "time": 242,
      "config": "macos-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8059687647"
    },
    {
      "job": 84986014095,
      "time": 224,
      "config": "source",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8059627194"
    },
    {
      "job": 84986014373,
      "time": 131,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "8059663749"
    },
    {
      "job": 84986014511,
      "time": 113,
      "config": "windows-devel",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "8059658784"
    },
    {
      "job": 84986014678,
      "time": 97,
      "config": "windows-oldrel",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "8059654829"
    },
    {
      "job": 84986014898,
      "time": 107,
      "config": "windows-release",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "8059657128"
    }
  ],
  "_host": "GitHub-Actions",
  "_buildurl": "https://github.com/r-universe/mathscell/actions/runs/28643357092",
  "_status": "success",
  "_upstream": "https://github.com/mathscell/bspline",
  "_commit": {
    "id": "2a2d1714eadf267246919554a789e24406bf3cbb",
    "author": "Serguei Sokol <sokol@insa-toulouse.fr>",
    "committer": "Serguei Sokol <sokol@insa-toulouse.fr>",
    "message": "v2.5.1 minor fix in unit tests\n\nSigned-off-by: Serguei Sokol <sokol@insa-toulouse.fr>\n",
    "time": 1770134441
  },
  "_maintainer": {
    "name": "Serguei Sokol",
    "email": "sokol@insa-toulouse.fr",
    "login": "sgsokol",
    "description": "",
    "uuid": 9048783
  },
  "_distro": "resolute",
  "_registered": true,
  "_dependencies": [
    {
      "package": "Rcpp",
      "role": "LinkingTo"
    },
    {
      "package": "RcppArmadillo",
      "role": "LinkingTo"
    },
    {
      "package": "Rcpp",
      "version": ">= 1.0.7",
      "role": "Imports"
    },
    {
      "package": "nlsic",
      "version": ">= 1.1.0",
      "role": "Imports"
    },
    {
      "package": "arrApply",
      "role": "Imports"
    },
    {
      "package": "RUnit",
      "role": "Suggests"
    }
  ],
  "_owner": "mathscell",
  "_selfowned": true,
  "_usedby": 1,
  "_updates": [
    {
      "week": "2026-06",
      "n": 1
    }
  ],
  "_tags": [],
  "_stars": 4,
  "_contributors": [
    {
      "user": "sgsokol",
      "count": 13,
      "uuid": 9048783
    },
    {
      "user": "mathscell",
      "count": 2,
      "uuid": 80681803
    }
  ],
  "_userbio": {
    "uuid": 80681803,
    "type": "user",
    "name": "MathsCell",
    "followers": 0
  },
  "_downloads": {
    "count": 459,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/bspline"
  },
  "_devurl": "https://github.com/mathscell/bspline",
  "_searchresults": 2,
  "_topics": [
    "openblas",
    "cpp"
  ],
  "_rbuild": "4.6.1",
  "_assets": [
    "extra/bspline.html",
    "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",
    "manual.pdf"
  ],
  "_homeurl": "https://github.com/mathscell/bspline",
  "_realowner": "mathscell",
  "_cranurl": true,
  "_releases": [
    {
      "version": "1.0.1",
      "date": "2022-03-14"
    },
    {
      "version": "1.0.2",
      "date": "2022-03-18"
    },
    {
      "version": "2.0.1",
      "date": "2022-04-20"
    },
    {
      "version": "2.1",
      "date": "2022-09-29"
    },
    {
      "version": "2.2",
      "date": "2023-05-26"
    },
    {
      "version": "2.2.2",
      "date": "2024-07-02"
    },
    {
      "version": "2.3.0",
      "date": "2025-02-05"
    },
    {
      "version": "2.4.0",
      "date": "2025-03-12"
    },
    {
      "version": "2.5.0",
      "date": "2025-05-16"
    },
    {
      "version": "2.5.1",
      "date": "2026-01-27"
    }
  ],
  "_exports": [
    "bcurve",
    "bsc",
    "bsp",
    "bsppar",
    "dbsp",
    "diffn",
    "dmat",
    "fitsmbsp",
    "ibsp",
    "iknots",
    "imat",
    "ipk",
    "jacw",
    "par2bsp",
    "parr",
    "pbsc",
    "smbsp"
  ],
  "_help": [
    {
      "page": "bcurve",
      "title": "nD B-curve governed by (x,y,...) control points.",
      "topics": [
        "bcurve"
      ]
    },
    {
      "page": "bsc",
      "title": "Basis matrix and knot Jacobian for B-spline of order 0 (step function) and higher",
      "topics": [
        "bsc"
      ]
    },
    {
      "page": "bsp",
      "title": "Calculate B-spline values from their coefficients qw and knots xk",
      "topics": [
        "bsp"
      ]
    },
    {
      "page": "bspline",
      "title": "bspline: build and use B-splines for interpolation and regression.",
      "topics": [
        "bspline-package",
        "bspline"
      ]
    },
    {
      "page": "bsppar",
      "title": "Retrieve parameters of B-splines",
      "topics": [
        "bsppar"
      ]
    },
    {
      "page": "dbsp",
      "title": "Derivative of B-spline",
      "topics": [
        "dbsp"
      ]
    },
    {
      "page": "diffn",
      "title": "Finite differences",
      "topics": [
        "diffn"
      ]
    },
    {
      "page": "dmat",
      "title": "Differentiation matrix of B-spline",
      "topics": [
        "dmat"
      ]
    },
    {
      "page": "ibsp",
      "title": "Indefinite integral of B-spline",
      "topics": [
        "ibsp"
      ]
    },
    {
      "page": "iknots",
      "title": "Estimate internal knot positions equalizing jumps in n-th derivative",
      "topics": [
        "iknots"
      ]
    },
    {
      "page": "imat",
      "title": "Integration matrix of B-spline",
      "topics": [
        "imat"
      ]
    },
    {
      "page": "ipk",
      "title": "Intervals of points in knot intervals",
      "topics": [
        "ipk"
      ]
    },
    {
      "page": "jacw",
      "title": "Knot Jacobian of B-spline with weights",
      "topics": [
        "jacw"
      ]
    },
    {
      "page": "par2bsp",
      "title": "Convert parameters to B-spline function",
      "topics": [
        "par2bsp"
      ]
    },
    {
      "page": "parr",
      "title": "Polynomial formulation of B-spline",
      "topics": [
        "parr"
      ]
    },
    {
      "page": "pbsc",
      "title": "Polynomial B-spline Calculation of Basis Matrix",
      "topics": [
        "pbsc"
      ]
    },
    {
      "page": "smbsp",
      "title": "Smoothing B-spline of order n >= 0",
      "topics": [
        "fitsmbsp",
        "smbsp"
      ]
    }
  ],
  "_readme": "https://github.com/mathscell/bspline/raw/HEAD/README.md",
  "_rundeps": [
    "arrApply",
    "dotty",
    "glue",
    "nlsic",
    "nnls",
    "Rcpp",
    "RcppArmadillo"
  ],
  "_sysdeps": [
    {
      "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"
    }
  ],
  "_score": 3.778151250383644,
  "_indexed": true,
  "_nocasepkg": "bspline",
  "_universes": [
    "mathscell",
    "sgsokol"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "2.5.1",
      "date": "2026-07-03T06:47:35.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "2a2d1714eadf267246919554a789e24406bf3cbb",
      "fileid": "https://r2.ropensci.org/a2945453538bc12ade750a96371c5e7b3561760418669f5f0530ce242fecc29b",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/mathscell/actions/runs/28643357092"
    },
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "2.5.1",
      "date": "2026-07-03T06:47:46.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "2a2d1714eadf267246919554a789e24406bf3cbb",
      "fileid": "https://r2.ropensci.org/2c90f8aba9711829ae4a4d6800cbda197c0516ad81ac901325e9d8357a3ed4fb",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/mathscell/actions/runs/28643357092"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "2.5.1",
      "date": "2026-07-03T06:47:14.000Z",
      "distro": "resolute",
      "arch": "aarch64",
      "commit": "2a2d1714eadf267246919554a789e24406bf3cbb",
      "fileid": "https://r2.ropensci.org/e6a8593eef7e3ce67a2c3ce1fe64a53dbc75f57a67a161a725d1cb1e0f2b1aa4",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/mathscell/actions/runs/28643357092"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "2.5.1",
      "date": "2026-07-03T06:47:05.000Z",
      "distro": "resolute",
      "arch": "x86_64",
      "commit": "2a2d1714eadf267246919554a789e24406bf3cbb",
      "fileid": "https://r2.ropensci.org/621736193a16a54c6801b5e539633500c2dc4ad8218e135536d52d23dffc252c",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/mathscell/actions/runs/28643357092"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "2.5.1",
      "date": "2026-07-03T06:47:07.000Z",
      "arch": "aarch64",
      "commit": "2a2d1714eadf267246919554a789e24406bf3cbb",
      "fileid": "https://r2.ropensci.org/47cc4a29f4536815b5516d48ddbe66e61ec5a62f82064ac79bf464ed67b94ddc",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/mathscell/actions/runs/28643357092"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "2.5.1",
      "date": "2026-07-03T06:48:56.000Z",
      "arch": "x86_64",
      "commit": "2a2d1714eadf267246919554a789e24406bf3cbb",
      "fileid": "https://r2.ropensci.org/1ac3e0a7ca1cfe9df7823b3b4dd9cdb3d3df869d77ef5226fdbca1db58ea52c5",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/mathscell/actions/runs/28643357092"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "2.5.1",
      "date": "2026-07-03T06:47:27.000Z",
      "arch": "aarch64",
      "commit": "2a2d1714eadf267246919554a789e24406bf3cbb",
      "fileid": "https://r2.ropensci.org/66738c471f134bb865ff748e6248537a1720ea750caac4d434d7c2dd869887d5",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/mathscell/actions/runs/28643357092"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "2.5.1",
      "date": "2026-07-03T06:48:18.000Z",
      "arch": "x86_64",
      "commit": "2a2d1714eadf267246919554a789e24406bf3cbb",
      "fileid": "https://r2.ropensci.org/2825e604402147ac92b3ab9698881ff197ba709786f03af34c73fa6d399702b7",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/mathscell/actions/runs/28643357092"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "2.5.1",
      "date": "2026-07-03T06:47:26.000Z",
      "arch": "emscripten",
      "commit": "2a2d1714eadf267246919554a789e24406bf3cbb",
      "fileid": "https://r2.ropensci.org/0547e96eba9832e0a1da316d5f274f2b4ed3817851fc87dee35aea840566c11b",
      "status": "success",
      "buildurl": "https://github.com/r-universe/mathscell/actions/runs/28643357092"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "2.5.1",
      "date": "2026-07-03T06:46:15.000Z",
      "arch": "x86_64",
      "commit": "2a2d1714eadf267246919554a789e24406bf3cbb",
      "fileid": "https://r2.ropensci.org/ee7fe2305acf44d14226cd28ccad77db37b96cb715a9da3a8fae1fe1f6ccb7fc",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/mathscell/actions/runs/28643357092"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "2.5.1",
      "date": "2026-07-03T06:46:14.000Z",
      "arch": "x86_64",
      "commit": "2a2d1714eadf267246919554a789e24406bf3cbb",
      "fileid": "https://r2.ropensci.org/2afe67d743358552f42ce14be0fbb425b5beef35f587d55b5c0d93da230edf7e",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/mathscell/actions/runs/28643357092"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "2.5.1",
      "date": "2026-07-03T06:46:12.000Z",
      "arch": "x86_64",
      "commit": "2a2d1714eadf267246919554a789e24406bf3cbb",
      "fileid": "https://r2.ropensci.org/98109dc748afa4398568b02f02c632a6a6f49aaaf5771e3a031a4b70c125befc",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/mathscell/actions/runs/28643357092"
    }
  ]
}