{
  "_id": "6a1f12bdb401979e7341de19",
  "Package": "akima",
  "Version": "0.6-3.6",
  "Date": "2025-06-02",
  "Title": "Interpolation of Irregularly and Regularly Spaced Data",
  "Authors@R": "c(person(\"Hiroshi\", \"Akima\", role = c(\"aut\", \"cph\"),\ncomment = \"Fortran code (TOMS 760, 761, 697 and 433)\"),\nperson(\"Albrecht\", \"Gebhardt\", role = c(\"aut\", \"cre\", \"cph\"),\nemail = \"albrecht.gebhardt@aau.at\",\ncomment = \"R port (interp*, bicubic* functions), bilinear code\"),\nperson(\"Thomas\", \"Petzold\", role = c(\"ctb\", \"cph\"),\ncomment = \"aspline function\"),\nperson(\"Martin\", \"Maechler\", email=\"maechler@stat.math.ethz.ch\",\nrole = c(\"ctb\", \"cph\"), comment = \"interp2xyz function + enhancements\"),\nperson(\"YYYY Association for Computing Machinery, Inc.\",\nrole = c(\"cph\"), comment = \"covers code from TOMS 760, 761, 697 and 433\")\n)",
  "Maintainer": "Albrecht Gebhardt <albrecht.gebhardt@aau.at>",
  "Description": "Several cubic spline interpolation methods of H. Akima for\nirregular and regular gridded data are available through this\npackage, both for the bivariate case (irregular data: ACM 761,\nregular data: ACM 760) and univariate case (ACM 433 and ACM\n697). Linear interpolation of irregular gridded data is also\ncovered by reusing D. J. Renkas triangulation code which is\npart of Akimas Fortran code. A bilinear interpolator for\nregular grids was also added for comparison with the bicubic\ninterpolator on regular grids. Please note that most of the\nfunctions are now also covered in package interp, which is a\nre-implementation from scratch under a free license.",
  "License": "file LICENSE",
  "NeedsCompilation": "yes",
  "Packaged": {
    "Date": "2026-05-17 07:31:08 UTC",
    "User": "root"
  },
  "Author": "Hiroshi Akima [aut, cph] (Fortran code (TOMS 760, 761, 697 and\n433)), Albrecht Gebhardt [aut, cre, cph] (R port (interp*,\nbicubic* functions), bilinear code), Thomas Petzold [ctb, cph]\n(aspline function), Martin Maechler [ctb, cph] (interp2xyz\nfunction + enhancements), YYYY Association for Computing\nMachinery, Inc. [cph] (covers code from TOMS 760, 761, 697 and\n433)",
  "License_restricts_use": "yes",
  "Repository": "https://cran.r-universe.dev",
  "Date/Publication": "2025-06-02 13:10:06 UTC",
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  "_user": "cran",
  "_type": "src",
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  "_published": "2026-06-02T17:28:29.388Z",
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    "author": "Albrecht Gebhardt <albrecht.gebhardt@aau.at>",
    "committer": "cran-robot <csardi.gabor+cran@gmail.com>",
    "message": "version 0.6-3.6\n",
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  "_maintainer": {
    "name": "Albrecht Gebhardt",
    "email": "albrecht.gebhardt@aau.at"
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    "description": "Unofficial read-only mirror of all CRAN R packages"
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    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/akima"
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      "date": "2020-05-30"
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  "_exports": [
    "aspline",
    "bicubic",
    "bicubic.grid",
    "bilinear",
    "bilinear.grid",
    "franke.data",
    "franke.fn",
    "interp",
    "interp.new",
    "interp.old",
    "interp2xyz",
    "interpp",
    "interpp.new",
    "interpp.old"
  ],
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      "name": "akima",
      "title": "Waveform Distortion Data for Bivariate Interpolation",
      "object": "akima",
      "file": "akima.rda",
      "class": [
        "list"
      ],
      "fields": [],
      "table": true,
      "tojson": true
    },
    {
      "name": "akima760",
      "title": "Sample data from Akima's Bicubic Spline Interpolation code (TOMS 760)",
      "object": "akima760",
      "file": "akima760.rda",
      "class": [
        "list"
      ],
      "fields": [],
      "table": false,
      "tojson": true
    },
    {
      "name": "franke",
      "title": "Test datasets from Franke for interpolation of scattered data",
      "object": "franke",
      "file": "franke.rda",
      "class": [
        "list"
      ],
      "fields": [],
      "table": true,
      "tojson": true
    }
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      "title": "Waveform Distortion Data for Bivariate Interpolation",
      "topics": [
        "akima"
      ]
    },
    {
      "page": "akima760",
      "title": "Sample data from Akima's Bicubic Spline Interpolation code (TOMS 760)",
      "topics": [
        "akima760"
      ]
    },
    {
      "page": "aspline",
      "title": "Univariate Akima interpolation",
      "topics": [
        "aspline"
      ]
    },
    {
      "page": "bicubic",
      "title": "Bivariate Interpolation for Data on a Rectangular grid",
      "topics": [
        "bicubic"
      ]
    },
    {
      "page": "bicubic.grid",
      "title": "Bicubic Interpolation for Data on a Rectangular grid",
      "topics": [
        "bicubic.grid"
      ]
    },
    {
      "page": "bilinear",
      "title": "Bilinear Interpolation for Data on a Rectangular grid",
      "topics": [
        "bilinear"
      ]
    },
    {
      "page": "bilinear.grid",
      "title": "Bilinear Interpolation for Data on a Rectangular grid",
      "topics": [
        "bilinear.grid"
      ]
    },
    {
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      "title": "Test datasets from Franke for interpolation of scattered data",
      "topics": [
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        "franke.data",
        "franke.fn"
      ]
    },
    {
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      "title": "Gridded Bivariate Interpolation for Irregular Data",
      "topics": [
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    },
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      "title": "Gridded Bivariate Interpolation for Irregular Data",
      "topics": [
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        "interp.old"
      ]
    },
    {
      "page": "interp2xyz",
      "title": "From interp() Result, Produce 3-column Matrix",
      "topics": [
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      ]
    },
    {
      "page": "interpp",
      "title": "Pointwise Bivariate Interpolation for Irregular Data",
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        "interpp"
      ]
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      "title": "Pointwise Bivariate Interpolation for Irregular Data",
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