"nonmissing" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "non",
        "3": "missing"
      },
      "expansion": "non- + missing",
      "name": "prefix"
    }
  ],
  "etymology_text": "From non- + missing.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "nonmissing (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with non-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2016 March 2, “A Study to Investigate the Efficacy and Safety of an Anti-Interleukin-18 Monoclonal Antibody in the Treatment of Type 2 Diabetes Mellitus”, in PLOS ONE, →DOI:",
          "text": "N, number of patients in cohort; n, number of patients with nonmissing values; NA, not applicable.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Not missing."
      ],
      "id": "en-nonmissing-en-adj-A-H~vwYL",
      "links": [
        [
          "missing",
          "missing"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "nonmissing"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "non",
        "3": "missing"
      },
      "expansion": "non- + missing",
      "name": "prefix"
    }
  ],
  "etymology_text": "From non- + missing.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "nonmissing (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms prefixed with non-",
        "English terms with quotations",
        "English uncomparable adjectives",
        "Pages with 1 entry"
      ],
      "examples": [
        {
          "ref": "2016 March 2, “A Study to Investigate the Efficacy and Safety of an Anti-Interleukin-18 Monoclonal Antibody in the Treatment of Type 2 Diabetes Mellitus”, in PLOS ONE, →DOI:",
          "text": "N, number of patients in cohort; n, number of patients with nonmissing values; NA, not applicable.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Not missing."
      ],
      "links": [
        [
          "missing",
          "missing"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "nonmissing"
}