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DataSource
object. A DataSource
references data
that can be used to perform CreateMLModel, CreateEvaluation, or CreateBatchPrediction
operations.
CreateDataSourceFromS3
is an asynchronous operation. In response to CreateDataSourceFromS3
,
Amazon Machine Learning (Amazon ML) immediately returns and sets the DataSource
status to PENDING
. After the DataSource
is created and ready
for use, Amazon ML sets the Status
parameter to COMPLETED
.
DataSource
in COMPLETED
or PENDING
status can
only be used to perform CreateMLModel, CreateEvaluation or CreateBatchPrediction
operations.
If Amazon ML cannot accept the input source, it sets the Status
parameter
to FAILED
and includes an error message in the Message
attribute
of the GetDataSource operation response.
The observation data used in a DataSource
should be ready to use; that
is, it should have a consistent structure, and missing data values should be kept
to a minimum. The observation data must reside in one or more CSV files in an Amazon
Simple Storage Service (Amazon S3) bucket, along with a schema that describes the
data items by name and type. The same schema must be used for all of the data files
referenced by the DataSource
.
After the DataSource
has been created, it's ready to use in evaluations
and batch predictions. If you plan to use the DataSource
to train an
MLModel
, the DataSource
requires another item: a recipe.
A recipe describes the observation variables that participate in training an MLModel
.
A recipe describes how each input variable will be used in training. Will the variable
be included or excluded from training? Will the variable be manipulated, for example,
combined with another variable, or split apart into word combinations? The recipe
provides answers to these questions. For more information, see the Amazon
Machine Learning Developer Guide.
Namespace: Amazon.MachineLearning
Assembly: AWSSDK.dll
Version: (assembly version)
public abstract CreateDataSourceFromS3Response CreateDataSourceFromS3( CreateDataSourceFromS3Request request )
Container for the necessary parameters to execute the CreateDataSourceFromS3 service method.
Exception | Condition |
---|---|
IdempotentParameterMismatchException | A second request to use or change an object was not allowed. This can result from retrying a request using a parameter that was not present in the original request. |
InternalServerException | An error on the server occurred when trying to process a request. |
InvalidInputException | An error on the client occurred. Typically, the cause is an invalid input value. |
.NET Framework:
Supported in: 4.5, 4.0, 3.5