org.datavec.api.transform.sequence.split

Class SequenceSplitTimeSeparation

java.lang.Object

org.datavec.api.transform.sequence.split.SequenceSplitTimeSeparation

All Implemented Interfaces:

Serializable, SequenceSplit

public class SequenceSplitTimeSeparation
extends Object
implements SequenceSplit

Split a sequence into multiple sequences, based on the separation of time steps in a time column. For example, suppose we have a sequence with a gap of 1 day between two blocks of entries: we can use SequenceSplitTimeSeparation to split this data into two separate sequences. More generally, split the sequence any time the separation between consecutive time steps exceeds a specified value.

Author:

Alex Black

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SequenceSplitTimeSeparation(String timeColumn, long timeQuantity, TimeUnit timeUnit)

Method Summary

Modifier and Type	Method and Description
Schema	getInputSchema()
void	setInputSchema(Schema inputSchema)
List<List<List<Writable>>>	split(List<List<Writable>> sequence)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

SequenceSplitTimeSeparation

public SequenceSplitTimeSeparation(String timeColumn,
                                   long timeQuantity,
                                   TimeUnit timeUnit)

Parameters:

timeColumn - Time column to consider when splitting

timeQuantity - Value/amount (of the specified TimeUnit)

timeUnit - The unit of time

Method Detail

split

public List<List<List<Writable>>> split(List<List<Writable>> sequence)

Specified by:

split in interface SequenceSplit

setInputSchema

public void setInputSchema(Schema inputSchema)

Specified by:

setInputSchema in interface SequenceSplit

getInputSchema

public Schema getInputSchema()

Specified by:

getInputSchema in interface SequenceSplit

toString

public String toString()

Overrides:

toString in class Object