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  "Title": "Deficit Index (DI)",
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  "Maintainer": "Ilya Y. Zhbannikov <ilya.zhbannikov@duke.edu>",
  "Description": "A set of utilities for calculating the Deficit (frailty)\nIndex (DI) in gerontological studies. The deficit index was\nfirst proposed by Arnold Mitnitski and Kenneth Rockwood and\nrepresents a proxy measure of aging and also can be served as a\nsensitive predictor of survival. For more information, see\n(i)\"Accumulation of Deficits as a Proxy Measure of Aging\" by\nArnold B. Mitnitski et al. (2001), The Scientific World Journal\n1, <DOI:10.1100/tsw.2001.58>; (ii) \"Frailty, fitness and\nlate-life mortality in relation to chronological and biological\nage\" by Arnold B Mitnitski et al. (2001), BMC Geriatrics2002\n2(1), <DOI:10.1186/1471-2318-2-1>.",
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    "User": "root"
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  "Author": "Ilya Y. Zhbannikov [aut, cre]",
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    "name": "cran",
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    "extra/citation.json",
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    "di"
  ],
  "_help": [
    {
      "page": "di-di",
      "title": "This function calculates the Deficit Index (DI) and returns results as list: 'di' a column-vector containing deficit indexes for each individual and 'columns' that were used to calculate the 'di'.",
      "topics": [
        "di"
      ]
    }
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      "filename": "di-vignette.html",
      "title": "Using di, an R package to calculate deficit (frailty) index (DI)",
      "author": "Ilya Y. Zhbannikov",
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        "Overview",
        "Examples",
        "Basic usage",
        "Rescaling",
        "Custom rescaling",
        "Avoiding rescaling for some columns",
        "Inverting",
        "Plotting"
      ],
      "created": "2017-06-11 22:00:18",
      "modified": "2018-04-11 04:24:20",
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