Amazon Forecast
Developer Guide

CreateDataset

Creates an Amazon Forecast dataset. The information about the dataset that you provide helps Forecast understand how to consume the data for model training. This includes the following:

  • DataFrequency - How frequently your historical time-series data is collected.

  • Domain and DatasetType - Each dataset has an associated dataset domain and a type within the domain. Amazon Forecast provides a list of predefined domains and types within each domain. For each unique dataset domain and type within the domain, Amazon Forecast requires your data to include a minimum set of predefined fields.

  • Schema - A schema specifies the fields in the dataset, including the field name and data type.

After creating a dataset, you import your training data into it and add the dataset to a dataset group. You use the dataset group to create a predictor. For more information, see Datasets and Dataset Groups.

To get a list of all your datasets, use the ListDatasets operation.

Note

The Status of a dataset must be ACTIVE before you can import training data. Use the DescribeDataset operation to get the status.

Request Syntax

{ "DataFrequency": "string", "DatasetName": "string", "DatasetType": "string", "Domain": "string", "EncryptionConfig": { "KMSKeyArn": "string", "RoleArn": "string" }, "Schema": { "Attributes": [ { "AttributeName": "string", "AttributeType": "string" } ] } }

Request Parameters

The request accepts the following data in JSON format.

DataFrequency

The frequency of data collection. This parameter is required for RELATED_TIME_SERIES datasets.

Valid intervals are Y (Year), M (Month), W (Week), D (Day), H (Hour), 30min (30 minutes), 15min (15 minutes), 10min (10 minutes), 5min (5 minutes), and 1min (1 minute). For example, "D" indicates every day and "15min" indicates every 15 minutes.

Type: String

Pattern: ^Y|M|W|D|H|30min|15min|10min|5min|1min$

Required: No

DatasetName

A name for the dataset.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 63.

Pattern: ^[a-zA-Z0-9][a-zA-Z0-9_]*

Required: Yes

DatasetType

The dataset type. Valid values depend on the chosen Domain.

Type: String

Valid Values: TARGET_TIME_SERIES | RELATED_TIME_SERIES | ITEM_METADATA

Required: Yes

Domain

The domain associated with the dataset. When you add a dataset to a dataset group, this value and the value specified for the Domain parameter of the CreateDatasetGroup operation must match.

The Domain and DatasetType that you choose determine the fields that must be present in the training data that you import to the dataset. For example, if you choose the RETAIL domain and TARGET_TIME_SERIES as the DatasetType, Amazon Forecast requires item_id, timestamp, and demand fields to be present in your data. For more information, see Datasets and Dataset Groups.

Type: String

Valid Values: RETAIL | CUSTOM | INVENTORY_PLANNING | EC2_CAPACITY | WORK_FORCE | WEB_TRAFFIC | METRICS

Required: Yes

EncryptionConfig

An AWS Key Management Service (KMS) key and the AWS Identity and Access Management (IAM) role that Amazon Forecast can assume to access the key.

Type: EncryptionConfig object

Required: No

Schema

The schema for the dataset. The schema attributes and their order must match the fields in your data. The dataset Domain and DatasetType that you choose determine the minimum required fields in your training data. For information about the required fields for a specific dataset domain and type, see Predefined Dataset Domains and Dataset Types.

Type: Schema object

Required: Yes

Response Syntax

{ "DatasetArn": "string" }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

DatasetArn

The Amazon Resource Name (ARN) of the dataset.

Type: String

Length Constraints: Maximum length of 256.

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

Errors

InvalidInputException

We can't process the request because it includes an invalid value or a value that exceeds the valid range.

HTTP Status Code: 400

LimitExceededException

The limit on the number of resources per account has been exceeded.

HTTP Status Code: 400

ResourceAlreadyExistsException

There is already a resource with this name. Try again with a different name.

HTTP Status Code: 400

See Also

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