{
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  "Package": "cdcanthro",
  "Title": "Standardized Metrics Based on the CDC and WHO Growth Charts",
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  "Date": "2026-10-30",
  "Authors@R": "c(\nperson(\"David\", \"Freedman\",\nrole = c(\"aut\", \"cre\"),\nemail = \"DavidSFreedman@gmail.com\",\ncomment = c(ORCID = \"0000-0001-8014-0289\")),\nperson(\"Carrie\", \"Daymont\",\nrole = \"ctb\",\nemail = \"cdaymont@pennstatehealth.psu.edu\")\n)",
  "Description": "Calculation of sex- and age-standardized growth metrics\nusing the LMS method (lambda-mu-sigma). The package includes\nfunctions for the CDC Growth Charts (cdc_z) and the WHO Charts\n(who_z). Because CDC recommends using the WHO Charts for\nchildren under 24 months and the CDC Charts among older\nchildren, there can be large differences at age 2.0 years. For\nexample, a girl weighing 9.9 kg would be at the WHO 10th\npercentile on the day before her second birthday, but at the\nCDC 2nd percentile the following day. The 'gradual_z' function\nreduces the differences among 2- to 5-year-olds by taking a\nweighted average of the CDC and WHO z-scores.",
  "License": "GPL-3",
  "Encoding": "UTF-8",
  "LazyData": "true",
  "ByteCompile": "true",
  "NeedsCompilation": "no",
  "Config/testthat/edition": "3",
  "Packaged": {
    "Date": "2026-10-30 21:08:37 UTC",
    "User": "root"
  },
  "Author": "David Freedman [aut, cre] (ORCID:\n<https://orcid.org/0000-0001-8014-0289>), Carrie Daymont [ctb]",
  "Maintainer": "David Freedman <DavidSFreedman@gmail.com>",
  "Repository": "https://cran.r-universe.dev",
  "Date/Publication": "2026-10-30 19:33:01 UTC",
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  "_created": "2026-10-30T21:08:37.000Z",
  "_published": "2026-10-30T21:11:20.799Z",
  "_upstream": "https://github.com/cran/cdcanthro",
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    "email": "davidsfreedman@gmail.com",
    "login": "cdc-dnpao",
    "orcid": "0000-0001-8014-0289",
    "description": "Retired from CDC in  2023",
    "uuid": 104166206
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    "author": "David Freedman <DavidSFreedman@gmail.com>",
    "committer": "cran-robot <csardi.gabor+cran@gmail.com>",
    "message": "version 0.5.0\n",
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    "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/cdcanthro"
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  "_assets": [
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    "extra/citation.cff",
    "extra/citation.html",
    "extra/citation.json",
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    "extra/contents.json",
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  "_homeurl": "https://github.com/cdc-dnpao/cdcanthro",
  "_realowner": "cdc-dnpao",
  "_cranurl": false,
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    "cdcanthro",
    "gradual_z",
    "who_z"
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      "title": "CDC Growth Chart Reference Data (2000)",
      "object": "cdc_ref_data",
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        "data.frame"
      ],
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        "age",
        "wl",
        "wm",
        "ws",
        "bl",
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        "bs",
        "hl",
        "hm",
        "hs",
        "mref",
        "sref"
      ],
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    },
    {
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      "title": "Sample Anthropometric Data from NHANES",
      "object": "NHanes",
      "class": [
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        "bmi",
        "headc",
        "agedays"
      ],
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        "tsf_s",
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        "armc_m",
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        "headc_l",
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        "headc_s",
        "wei_l",
        "wei_m",
        "wei_s",
        "len_l",
        "len_m",
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        "denom",
        "len",
        "wfl_l",
        "wfl_m",
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      ],
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  "_help": [
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      "page": "cdcanthro-package",
      "title": "cdcanthro: Sex- and Age-Standardized Metrics from the CDC and WHO Growth Charts",
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        "_PACKAGE"
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      "title": "CDC Growth Chart Reference Data (2000)",
      "topics": [
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      ]
    },
    {
      "page": "cdc_z",
      "title": "Generate Sex- and Age-Standardized Weight, Height, and BMI Metrics From the CDC Growth Charts",
      "topics": [
        "cdcanthro",
        "cdc_z"
      ]
    },
    {
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      "title": "Gradual WHO-to-CDC Transition Z-Scores",
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