TimeSeriesTransformations - Amazon SageMaker
ContentsSee Also

TimeSeriesTransformations

Transformations allowed on the dataset. Supported transformations are Filling and Aggregation. Filling specifies how to add values to missing values in the dataset. Aggregation defines how to aggregate data that does not align with forecast frequency.

Contents

Aggregation

A key value pair defining the aggregation method for a column, where the key is the column name and the value is the aggregation method.

The supported aggregation methods are sum (default), avg, first, min, max.

Note

Aggregation is only supported for the target column.

Type: String to string map

Map Entries: Maximum number of 50 items.

Key Length Constraints: Minimum length of 1. Maximum length of 256.

Valid Values: sum | avg | first | min | max

Required: No

Filling

A key value pair defining the filling method for a column, where the key is the column name and the value is an object which defines the filling logic. You can specify multiple filling methods for a single column.

The supported filling methods and their corresponding options are:

  • frontfill: none (Supported only for target column)

  • middlefill: zero, value, median, mean, min, max

  • backfill: zero, value, median, mean, min, max

  • futurefill: zero, value, median, mean, min, max

To set a filling method to a specific value, set the fill parameter to the chosen filling method value (for example "backfill" : "value"), and define the filling value in an additional parameter prefixed with "_value". For example, to set backfill to a value of 2, you must include two parameters: "backfill": "value" and "backfill_value":"2".

Type: String to string to string map map

Map Entries: Maximum number of 50 items.

Key Length Constraints: Minimum length of 1. Maximum length of 256.

Map Entries: Maximum number of 6 items.

Valid Keys: frontfill | middlefill | backfill | futurefill | frontfill_value | middlefill_value | backfill_value | futurefill_value

Value Length Constraints: Minimum length of 1. Maximum length of 256.

Value Pattern: ^[a-zA-Z0-9\_\-]+$

Required: No

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: