"backtest" meaning in English

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      "expansion": "back + test",
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  "etymology_text": "From back + test.",
  "forms": [
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      "form": "backtests",
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      "form": "backtested",
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  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
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      "examples": [
        {
          "ref": "2008 May 18, Mark Hulbert, “An Alarm Is Blaring: Time to Buy”, in New York Times:",
          "text": "(Mr. Fosback has also backtested this indicator to the late 1940s, the earliest period for which data on the coincident economic indicators were available, and it performed just as well from then until the late ’70s as it did in more recent decades.)",
          "type": "quote"
        }
      ],
      "glosses": [
        "To test a strategy, model etc. using data from a previous time."
      ],
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      "links": [
        [
          "test",
          "test"
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        "(intransitive) To test a strategy, model etc. using data from a previous time."
      ],
      "tags": [
        "intransitive"
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    }
  ],
  "word": "backtest"
}

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  "etymology_templates": [
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        "2": "back",
        "3": "test"
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      "expansion": "back + test",
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  ],
  "etymology_text": "From back + test.",
  "forms": [
    {
      "form": "backtests",
      "tags": [
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    },
    {
      "form": "backtesting",
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    {
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          "ref": "2008 May 18, Mark Hulbert, “An Alarm Is Blaring: Time to Buy”, in New York Times:",
          "text": "(Mr. Fosback has also backtested this indicator to the late 1940s, the earliest period for which data on the coincident economic indicators were available, and it performed just as well from then until the late ’70s as it did in more recent decades.)",
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      ],
      "glosses": [
        "To test a strategy, model etc. using data from a previous time."
      ],
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        "(intransitive) To test a strategy, model etc. using data from a previous time."
      ],
      "tags": [
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  "word": "backtest"
}