Previews the features used by a data frame analytics config.
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
Requires the monitor_ml cluster privilege. This privilege is included in the
machine_learning_user built-in role.
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.
-
<data_frame_analytics_id> - (Optional, string) Identifier for the data frame analytics job.
-
config -
(Optional, object)
A data frame analytics config as described in Create data frame analytics jobs.
Note that
idanddestdon’t need to be provided in the context of this API.
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.
POST _ml/data_frame/analytics/_preview
{
"config": {
"source": {
"index": "houses_sold_last_10_yrs"
},
"analysis": {
"regression": {
"dependent_variable": "price"
}
}
}
}
The API returns the following results:
{
"feature_values": [
{
"number_of_bedrooms": "1",
"postcode": "29655",
"price": "140.4"
},
...
]
}