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Preview data frame analytics API

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Preview data frame analytics API

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Previews the features used by a data frame analytics config.

Request

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GET _ml/data_frame/analytics/_preview

POST _ml/data_frame/analytics/_preview

GET _ml/data_frame/analytics/<data_frame_analytics_id>/_preview

POST _ml/data_frame/analytics/<data_frame_analytics_id>/_preview

Prerequisites

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Requires the monitor_ml cluster privilege. This privilege is included in the machine_learning_user built-in role.

Description

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This API provides preview of the extracted features for a data frame analytics config that either exists already or one that has not been created yet.

Path parameters

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<data_frame_analytics_id>: (Optional, string) Identifier for the data frame analytics job.

Request body

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config: (Optional, object) A data frame analytics config as described in Create data frame analytics jobs. Note that id and dest don’t need to be provided in the context of this API.

Response body

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The API returns a response that contains the following:

feature_values: (array) An array of objects that contain feature name and value pairs. The features have been processed and indicate what will be sent to the model for training.

Examples

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POST _ml/data_frame/analytics/_preview
{
  "config": {
    "source": {
      "index": "houses_sold_last_10_yrs"
    },
    "analysis": {
      "regression": {
        "dependent_variable": "price"
      }
    }
  }
}

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The API returns the following results:

{
  "feature_values": [
    {
      "number_of_bedrooms": "1",
      "postcode": "29655",
      "price": "140.4"
    },
    ...
  ]
}

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