TimestampSplit class final
Assigns input data to training, validation, and test sets based on a provided timestamps. The youngest data pieces are assigned to training set, next to validation set, and the oldest to the test set.
Supported only for tabular Datasets.
Constructors
- TimestampSplit({double trainingFraction = 0, double validationFraction = 0, double testFraction = 0, required String key})
- TimestampSplit.fromJson(Object? j)
-
factory
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → String
-
Required. The key is a name of one of the Dataset's data columns.
The values of the key (the values in the column) must be in RFC 3339
date-timeformat, wheretime-offset="Z"(e.g. 1985-04-12T23:20:50.52Z). If for a piece of data the key is not present or has an invalid value, that piece is ignored by the pipeline.final - qualifiedName → String
-
The fully qualified name of this message, i.e.,
google.protobuf.Durationorgoogle.rpc.ErrorInfo.finalinherited - runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- testFraction → double
-
The fraction of the input data that is to be used to evaluate the Model.
final
- trainingFraction → double
-
The fraction of the input data that is to be used to train the Model.
final
- validationFraction → double
-
The fraction of the input data that is to be used to validate the Model.
final
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toJson(
) → Object -
toString(
) → String -
A string representation of this object.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Constants
- fullyQualifiedName → const String