Package org.datavec.api.transform.transform.sequence

Class Summary

Class	Description
SequenceDifferenceTransform	SequenceDifferenceTransform: for an input sequence, calculate the difference on one column. For each time t, calculate someColumn(t) - someColumn(t-s), where s >= 1 is the 'lookback' period. Note: at t=0 (i.e., the first step in a sequence; or more generally, for all times t < s), there is no previous value from which to calculate the difference.
SequenceMovingWindowReduceTransform	SequenceMovingWindowReduceTransform Adds a new column, where the value is derived by: (a) using a window of the last N values in a single column, (b) Apply a reduction op on the window to calculate a new value for example, this transformer can be used to implement a simple moving average of the last N values, or determine the minimum or maximum values in the last N time steps.
SequenceOffsetTransform	Sequence offset transform takes a sequence, and shifts The values in one or more columns by a specified number of times steps.

Enum Summary

Enum	Description
SequenceDifferenceTransform.FirstStepMode
SequenceMovingWindowReduceTransform.EdgeCaseHandling	Enumeration to specify how each cases are handled: For example, for a look back period of 20, how should the first 19 output values be calculated? Default: Perform your former reduction as normal, with as many values are available SpecifiedValue: use the given/specified value instead of the actual output value.
SequenceOffsetTransform.EdgeHandling
SequenceOffsetTransform.OperationType