Preview data frame analytics APIedit
Previews the features used by a data frame analytics config.
Requestedit
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
Prerequisitesedit
Requires the monitor_ml
cluster privilege. This privilege is included in the
machine_learning_user
built-in role.
Descriptionedit
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 parametersedit
-
<data_frame_analytics_id>
- (Optional, string) Identifier for the data frame analytics job.
Request bodyedit
-
config
-
(Optional, object)
A data frame analytics config as described in Create data frame analytics jobs.
Note that
id
anddest
don’t need to be provided in the context of this API.
Response bodyedit
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.
Examplesedit
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" }, ... ] }