{
  "_id": "6abcd38c99f7aa8c6aa4c645",
  "Package": "swdft",
  "Title": "Sliding Window Discrete Fourier Transform (SWDFT)",
  "Version": "1.0.0",
  "Authors@R": "person(\"Lee F. Richardson\", email = \"leerichardson2013@gmail.com\", role = c(\"aut\", \"cre\"))",
  "Description": "Implements the Sliding Window Discrete Fourier Transform\n(SWDFT). Also provides statistical methods based on the SWDFT,\nand graphical tools to display the outputs.",
  "License": "MIT + file LICENSE",
  "Encoding": "UTF-8",
  "RoxygenNote": "6.1.1",
  "VignetteBuilder": "knitr",
  "NeedsCompilation": "no",
  "Packaged": {
    "Date": "2026-09-30 08:42:34 UTC",
    "User": "root"
  },
  "Author": "Lee F. Richardson [aut, cre]",
  "Maintainer": "Lee F. Richardson <leerichardson2013@gmail.com>",
  "Repository": "https://leerichardson.r-universe.dev",
  "Date/Publication": "2019-04-17 03:22:46 UTC",
  "RemoteUrl": "https://github.com/cran/swdft",
  "RemoteRef": "HEAD",
  "RemoteSha": "224b6663d49156b6aa4324ae2cd1ad27cfb53010",
  "_user": "leerichardson",
  "_type": "src",
  "_file": "swdft_1.0.0.tar.gz",
  "_fileid": "https://r2.ropensci.org/200888f90752d6101981ff5c6185773ee64e0062057be9b4066ef13a959c7874",
  "_filesize": 2313948,
  "_sha256": "200888f90752d6101981ff5c6185773ee64e0062057be9b4066ef13a959c7874",
  "_expires": "2027-01-08T09:16:58.000Z",
  "_created": "2026-09-30T08:42:34.000Z",
  "_published": "2026-09-30T09:17:00.607Z",
  "_jobs": [
    {
      "job": 109809327245,
      "time": 150,
      "config": "linux-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "11085732546"
    },
    {
      "job": 109809327188,
      "time": 142,
      "config": "linux-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11085704023"
    },
    {
      "job": 109809327132,
      "time": 193,
      "config": "macos-oldrel-arm64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "11087431116"
    },
    {
      "job": 109809327031,
      "time": 146,
      "config": "macos-release-arm64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11087370888"
    },
    {
      "job": 109807826535,
      "time": 261,
      "config": "source",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11085464063"
    },
    {
      "job": 109809327023,
      "time": 115,
      "config": "wasm-release",
      "r": "4.6.0",
      "check": "OK",
      "artifact": "11085369694"
    },
    {
      "job": 109809327062,
      "time": 81,
      "config": "windows-devel-x86_64",
      "r": "4.7.0",
      "check": "OK",
      "artifact": "11085519218"
    },
    {
      "job": 109809327254,
      "time": 75,
      "config": "windows-oldrel-x86_64",
      "r": "4.5.3",
      "check": "OK",
      "artifact": "11085648854"
    },
    {
      "job": 109809327163,
      "time": 82,
      "config": "windows-release-x86_64",
      "r": "4.6.1",
      "check": "OK",
      "artifact": "11085573935"
    }
  ],
  "_host": "GitHub-Actions",
  "_buildurl": "https://github.com/r-universe/leerichardson/actions/runs/36690923369",
  "_status": "success",
  "_upstream": "https://github.com/cran/swdft",
  "_commit": {
    "id": "224b6663d49156b6aa4324ae2cd1ad27cfb53010",
    "author": "Lee F. Richardson <leerichardson2013@gmail.com>",
    "committer": "cran-robot <csardi.gabor+cran@gmail.com>",
    "message": "version 1.0.0\n",
    "time": 1555471366
  },
  "_maintainer": {
    "name": "Lee F. Richardson",
    "email": "leerichardson2013@gmail.com",
    "login": "leerichardson",
    "description": "Tech Lead at Google",
    "uuid": 4391913
  },
  "_distro": "resolute",
  "_registered": true,
  "_dependencies": [
    {
      "package": "R",
      "version": ">= 3.3.0",
      "role": "Depends"
    },
    {
      "package": "stats",
      "role": "Imports"
    },
    {
      "package": "graphics",
      "role": "Imports"
    },
    {
      "package": "testthat",
      "role": "Suggests"
    },
    {
      "package": "fftwtools",
      "role": "Suggests"
    },
    {
      "package": "fields",
      "role": "Suggests"
    },
    {
      "package": "signal",
      "role": "Suggests"
    },
    {
      "package": "nloptr",
      "role": "Suggests"
    },
    {
      "package": "knitr",
      "role": "Suggests"
    },
    {
      "package": "rmarkdown",
      "role": "Suggests"
    },
    {
      "package": "devtools",
      "role": "Suggests"
    }
  ],
  "_owner": "cran",
  "_selfowned": true,
  "_usedby": 0,
  "_updates": [],
  "_tags": [],
  "_stars": 1,
  "_contributors": [
    {
      "user": "leerichardson",
      "count": 2,
      "uuid": 4391913
    }
  ],
  "_userbio": {
    "uuid": 4391913,
    "type": "user",
    "name": "Lee Richardson",
    "followers": 43,
    "description": "Tech Lead at Google"
  },
  "_downloads": {
    "count": 249,
    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/swdft"
  },
  "_searchresults": 0,
  "_rbuild": "4.6.1",
  "_assets": [
    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
    "extra/citation.txt",
    "extra/contents.json",
    "extra/manual.pdf",
    "extra/NEWS.html",
    "extra/NEWS.txt",
    "extra/readme.html",
    "extra/readme.md",
    "extra/swdft.html",
    "LICENSE"
  ],
  "_realowner": "leerichardson",
  "_cranurl": false,
  "_releases": [
    {
      "version": "0.0.1",
      "date": "2018-07-30"
    },
    {
      "version": "1.0.0",
      "date": "2019-04-17"
    }
  ],
  "_exports": [
    "complex_demod",
    "cosine",
    "cosreg",
    "get_max_freq",
    "local_cosreg",
    "local_signal",
    "matching_demod",
    "new_swdft_cosreg",
    "new_swdft_demod",
    "new_swdft_matching_demod",
    "prou",
    "sine",
    "smooth_swdft",
    "swdft",
    "swdft2d",
    "swdft3d"
  ],
  "_help": [
    {
      "page": "coefficients.swdft_mod",
      "title": "Coefficients method for swdft_cosreg objects",
      "topics": [
        "coefficients.swdft_mod"
      ]
    },
    {
      "page": "complex_demod",
      "title": "Complex Demodulation",
      "topics": [
        "complex_demod"
      ]
    },
    {
      "page": "cosine",
      "title": "Cosine signal with adjustable parameters",
      "topics": [
        "cosine"
      ]
    },
    {
      "page": "cosine_taper",
      "title": "Cosine bell data taper",
      "topics": [
        "cosine_taper"
      ]
    },
    {
      "page": "cosreg",
      "title": "Cosine regression",
      "topics": [
        "cosreg"
      ]
    },
    {
      "page": "cov_swdft_cnum",
      "title": "Covariance between two complex-numbered outputs",
      "topics": [
        "cov_swdft_cnum"
      ]
    },
    {
      "page": "demod_swdft",
      "title": "Demodulate a Fourier Frequency with the SWDFT",
      "topics": [
        "demod_swdft"
      ]
    },
    {
      "page": "dirichlet",
      "title": "Dirichlet Kernel (Weight) for arbitrary summation indices",
      "topics": [
        "dirichlet"
      ]
    },
    {
      "page": "dirichlet_kernel",
      "title": "Dirichlet Kernel",
      "topics": [
        "dirichlet_kernel"
      ]
    },
    {
      "page": "fitted.swdft_mod",
      "title": "Fitted values method for swdft_cosreg objects",
      "topics": [
        "fitted.swdft_mod"
      ]
    },
    {
      "page": "get_aphi",
      "title": "Extract amplitude and phase",
      "topics": [
        "get_aphi"
      ]
    },
    {
      "page": "get_freq_range",
      "title": "Get range of frequencies to search",
      "topics": [
        "get_freq_range"
      ]
    },
    {
      "page": "get_loglik",
      "title": "Compute the log likelihood",
      "topics": [
        "get_loglik"
      ]
    },
    {
      "page": "get_max_freq",
      "title": "Get the maximum DFT coefficient",
      "topics": [
        "get_max_freq"
      ]
    },
    {
      "page": "get_p_range",
      "title": "Get range of P's to search",
      "topics": [
        "get_p_range"
      ]
    },
    {
      "page": "get_sigma",
      "title": "Extract estimator of sigma",
      "topics": [
        "get_sigma"
      ]
    },
    {
      "page": "get_sl",
      "title": "Extract signal parameters",
      "topics": [
        "get_sl"
      ]
    },
    {
      "page": "get_taper",
      "title": "Create taper for the SWDFT",
      "topics": [
        "get_taper"
      ]
    },
    {
      "page": "lcr_loglik",
      "title": "Log Likelihood",
      "topics": [
        "lcr_loglik"
      ]
    },
    {
      "page": "local_cosreg",
      "title": "Local cosine regression",
      "topics": [
        "local_cosreg"
      ]
    },
    {
      "page": "local_signal",
      "title": "Local Periodic Signal",
      "topics": [
        "local_signal"
      ]
    },
    {
      "page": "matching_demod",
      "title": "Matching Demodulation",
      "topics": [
        "matching_demod"
      ]
    },
    {
      "page": "moving_average",
      "title": "Simple high pass filter",
      "topics": [
        "moving_average"
      ]
    },
    {
      "page": "new_swdft",
      "title": "Constructor function for class 'swdft'",
      "topics": [
        "new_swdft"
      ]
    },
    {
      "page": "new_swdft_cosreg",
      "title": "Constructor function for class swdft_mod",
      "topics": [
        "new_swdft_cosreg"
      ]
    },
    {
      "page": "new_swdft_demod",
      "title": "Constructor function for class 'swdft_demod'",
      "topics": [
        "new_swdft_demod"
      ]
    },
    {
      "page": "new_swdft_local_cosreg",
      "title": "Constructor function for class 'swdft_local_cosreg'",
      "topics": [
        "new_swdft_local_cosreg"
      ]
    },
    {
      "page": "new_swdft_matching_demod",
      "title": "Constructor function for class 'swdft_matching_demod'",
      "topics": [
        "new_swdft_matching_demod"
      ]
    },
    {
      "page": "new_swdft2d",
      "title": "Constructor function for class 'swdft2d'",
      "topics": [
        "new_swdft2d"
      ]
    },
    {
      "page": "new_swdft3d",
      "title": "Constructor function for class 'swdft3d'",
      "topics": [
        "new_swdft3d"
      ]
    },
    {
      "page": "plot.swdft",
      "title": "Plot method for 'swdft' object",
      "topics": [
        "plot.swdft"
      ]
    },
    {
      "page": "plot.swdft_mod",
      "title": "Plot method for swdft_mod object",
      "topics": [
        "plot.swdft_mod"
      ]
    },
    {
      "page": "prou",
      "title": "The principal nth root of unity",
      "topics": [
        "prou"
      ]
    },
    {
      "page": "residuals.swdft_mod",
      "title": "Residuals method for swdft_cosreg objects",
      "topics": [
        "residuals.swdft_mod"
      ]
    },
    {
      "page": "sine",
      "title": "Sine signal with adjustable parameters",
      "topics": [
        "sine"
      ]
    },
    {
      "page": "smooth_pgram",
      "title": "Smooth SWDFT coefficients with a convolution",
      "topics": [
        "smooth_pgram"
      ]
    },
    {
      "page": "smooth_swdft",
      "title": "Smooth the SWDFT coefficients",
      "topics": [
        "smooth_swdft"
      ]
    },
    {
      "page": "swdft",
      "title": "Sliding Window Discrete Fourier Transform",
      "topics": [
        "swdft"
      ]
    },
    {
      "page": "swdft_base_3d",
      "title": "3D SWDFT using base R",
      "topics": [
        "swdft_base_3d"
      ]
    },
    {
      "page": "swdft_fft",
      "title": "Sliding Window Discrete Fourier Transform with base R",
      "topics": [
        "swdft_fft"
      ]
    },
    {
      "page": "swdft_fftw",
      "title": "Sliding Window Discrete Fourier Transform using fftw",
      "topics": [
        "swdft_fftw"
      ]
    },
    {
      "page": "swdft_to_props",
      "title": "Convert the SWDFT to proportions of frequency",
      "topics": [
        "swdft_to_props"
      ]
    },
    {
      "page": "swdft2d",
      "title": "2D Sliding Window Discrete Fourier Transform",
      "topics": [
        "swdft2d"
      ]
    },
    {
      "page": "swdft2d_fft",
      "title": "2D Sliding Window Discrete Fourier Transform using base R",
      "topics": [
        "swdft2d_fft"
      ]
    },
    {
      "page": "swdft2d_fftw",
      "title": "2D Sliding Window Discrete Fourier Transform using fftw",
      "topics": [
        "swdft2d_fftw"
      ]
    },
    {
      "page": "swdft3d",
      "title": "3D Sliding Window Discrete Fourier Transform",
      "topics": [
        "swdft3d"
      ]
    },
    {
      "page": "unwrap_phase",
      "title": "Phase unwrapping",
      "topics": [
        "unwrap_phase"
      ]
    }
  ],
  "_readme": "https://github.com/cran/swdft/raw/HEAD/README.md",
  "_rundeps": [],
  "_vignettes": [
    {
      "source": "swdft-intro.Rmd",
      "filename": "swdft-intro.html",
      "title": "The swdft Package",
      "author": "Lee Richardson",
      "engine": "knitr::rmarkdown",
      "headings": [
        "The SWDFT",
        "Local Cosine Signals",
        "The swdft function",
        "The plot.swdft method",
        "Tapering and Smoothing",
        "Cosine Regression",
        "Local Cosine Regression",
        "Complex Demodulation",
        "Matching Demodulation",
        "References"
      ],
      "created": "2019-04-17 03:22:46",
      "modified": "2019-04-17 03:22:46",
      "commits": 1
    }
  ],
  "_score": 2.6989700043360187,
  "_indexed": true,
  "_nocasepkg": "swdft",
  "_universes": [
    "leerichardson"
  ],
  "_binaries": [
    {
      "r": "4.7.0",
      "os": "linux",
      "version": "1.0.0",
      "date": "2026-09-30T08:45:06.000Z",
      "distro": "resolute",
      "commit": "224b6663d49156b6aa4324ae2cd1ad27cfb53010",
      "fileid": "https://r2.ropensci.org/27458c87018472dcfc6793f265bc5b6d7cfc0ac04154269a13ac19a7216a32d3",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/leerichardson/actions/runs/36690923369"
    },
    {
      "r": "4.6.1",
      "os": "linux",
      "version": "1.0.0",
      "date": "2026-09-30T08:45:01.000Z",
      "distro": "resolute",
      "commit": "224b6663d49156b6aa4324ae2cd1ad27cfb53010",
      "fileid": "https://r2.ropensci.org/db912c2f2a057c14d400b353ff258cc321a6e5ecca1ed3ba047ad602a146d12d",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/leerichardson/actions/runs/36690923369"
    },
    {
      "r": "4.5.3",
      "os": "mac",
      "version": "1.0.0",
      "date": "2026-09-30T09:15:45.000Z",
      "commit": "224b6663d49156b6aa4324ae2cd1ad27cfb53010",
      "fileid": "https://r2.ropensci.org/0a2414d6a60185e34a87786aef73ef025054f3b91a5114fbd296e7124be9dbc4",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/leerichardson/actions/runs/36690923369"
    },
    {
      "r": "4.6.1",
      "os": "mac",
      "version": "1.0.0",
      "date": "2026-09-30T09:13:31.000Z",
      "commit": "224b6663d49156b6aa4324ae2cd1ad27cfb53010",
      "fileid": "https://r2.ropensci.org/f059d239c479469943ebe1c2bb3954c8fb6c3c811be28813b71db1d7a38b8916",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/leerichardson/actions/runs/36690923369"
    },
    {
      "r": "4.6.0",
      "os": "wasm",
      "version": "1.0.0",
      "date": "2026-09-30T08:44:50.000Z",
      "commit": "224b6663d49156b6aa4324ae2cd1ad27cfb53010",
      "fileid": "https://r2.ropensci.org/0dad14b7e877a0e3e1a108162430fdefaf5eafac7b10ac888eed4b2fb1afd2ed",
      "status": "success",
      "buildurl": "https://github.com/r-universe/leerichardson/actions/runs/36690923369"
    },
    {
      "r": "4.7.0",
      "os": "win",
      "version": "1.0.0",
      "date": "2026-09-30T08:43:51.000Z",
      "commit": "224b6663d49156b6aa4324ae2cd1ad27cfb53010",
      "fileid": "https://r2.ropensci.org/b1434cee53f787bf0d9445b3378b777bad5870c61e4c0f4d0675208df358b88d",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/leerichardson/actions/runs/36690923369"
    },
    {
      "r": "4.5.3",
      "os": "win",
      "version": "1.0.0",
      "date": "2026-09-30T08:43:48.000Z",
      "commit": "224b6663d49156b6aa4324ae2cd1ad27cfb53010",
      "fileid": "https://r2.ropensci.org/ebea1a049232c8eb9813afb62eb0159c2c80cf2e11be7046a2daaa80dfa316d4",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/leerichardson/actions/runs/36690923369"
    },
    {
      "r": "4.6.1",
      "os": "win",
      "version": "1.0.0",
      "date": "2026-09-30T08:43:52.000Z",
      "commit": "224b6663d49156b6aa4324ae2cd1ad27cfb53010",
      "fileid": "https://r2.ropensci.org/d231c08fff51d58dc462b30fde1e8c0a25f06a468201a0e597a54d6f83475482",
      "status": "success",
      "check": "OK",
      "buildurl": "https://github.com/r-universe/leerichardson/actions/runs/36690923369"
    }
  ]
}