Uses of Class
org.datavec.api.transform.ReduceOp

Packages that use ReduceOp

Package	Description
org.datavec.api.transform
org.datavec.api.transform.reduce
org.datavec.api.transform.transform.sequence

Uses of ReduceOp in org.datavec.api.transform

Methods in org.datavec.api.transform that return ReduceOp

Modifier and Type	Method and Description
static ReduceOp	ReduceOp.valueOf(String name) Returns the enum constant of this type with the specified name.
static ReduceOp[]	ReduceOp.values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods in org.datavec.api.transform with parameters of type ReduceOp

Modifier and Type

Method and Description

TransformProcess.Builder

TransformProcess.Builder.sequenceMovingWindowReduce(String columnName, int lookback, ReduceOp op) 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.

Uses of ReduceOp in org.datavec.api.transform.reduce

Methods in org.datavec.api.transform.reduce with parameters of type ReduceOp

Modifier and Type	Method and Description
Reducer.Builder	Reducer.Builder.conditionalReduction(String column, String outputName, ReduceOp reduction, Condition condition) Conditional reduction: apply the reduces on a specified column, where the reduction occurs *only* on those examples where the condition returns true.

Method parameters in org.datavec.api.transform.reduce with type arguments of type ReduceOp

Modifier and Type	Method and Description
Reducer.Builder	Reducer.Builder.conditionalReduction(String column, List<String> outputNames, List<ReduceOp> reductions, Condition condition) Conditional reduction: apply the reduces on a specified column, where the reduction occurs *only* on those examples where the condition returns true.
Reducer.Builder	Reducer.Builder.multipleOpColmumns(List<ReduceOp> ops, String... columns)
static IAggregableReduceOp<Writable,List<Writable>>	AggregableReductionUtils.reduceBytesColumn(List<ReduceOp> lop, boolean ignoreInvalid, ColumnMetaData metaData)
static IAggregableReduceOp<Writable,List<Writable>>	AggregableReductionUtils.reduceColumn(List<ReduceOp> op, ColumnType type, boolean ignoreInvalid, ColumnMetaData metaData)
static IAggregableReduceOp<Writable,List<Writable>>	AggregableReductionUtils.reduceDoubleColumn(List<ReduceOp> lop, boolean ignoreInvalid, ColumnMetaData metaData)
static IAggregableReduceOp<Writable,List<Writable>>	AggregableReductionUtils.reduceFloatColumn(List<ReduceOp> lop, boolean ignoreInvalid, ColumnMetaData metaData)
static IAggregableReduceOp<Writable,List<Writable>>	AggregableReductionUtils.reduceIntColumn(List<ReduceOp> lop, boolean ignoreInvalid, ColumnMetaData metaData)
static IAggregableReduceOp<Writable,List<Writable>>	AggregableReductionUtils.reduceLongColumn(List<ReduceOp> lop, boolean ignoreInvalid, ColumnMetaData metaData)
static IAggregableReduceOp<Writable,List<Writable>>	AggregableReductionUtils.reduceStringOrCategoricalColumn(List<ReduceOp> lop, boolean ignoreInvalid, ColumnMetaData metaData)
static IAggregableReduceOp<Writable,List<Writable>>	AggregableReductionUtils.reduceTimeColumn(List<ReduceOp> lop, boolean ignoreInvalid, ColumnMetaData metaData)

Constructors in org.datavec.api.transform.reduce with parameters of type ReduceOp

Constructor and Description
Builder(ReduceOp defaultOp) Create a Reducer builder, and set the default column reduction operation.
Reducer(List<String> keyColumns, ReduceOp defaultOp, Map<String,List<ReduceOp>> opMap, Map<String,AggregableColumnReduction> customReductions, Map<String,Reducer.ConditionalReduction> conditionalReductions, Set<String> ignoreInvalidInColumns)

Constructor parameters in org.datavec.api.transform.reduce with type arguments of type ReduceOp

Constructor and Description
Reducer(List<String> keyColumns, ReduceOp defaultOp, Map<String,List<ReduceOp>> opMap, Map<String,AggregableColumnReduction> customReductions, Map<String,Reducer.ConditionalReduction> conditionalReductions, Set<String> ignoreInvalidInColumns)

Uses of ReduceOp in org.datavec.api.transform.transform.sequence

Methods in org.datavec.api.transform.transform.sequence with parameters of type ReduceOp

Modifier and Type	Method and Description
static String	SequenceMovingWindowReduceTransform.defaultOutputColumnName(String originalName, int lookback, ReduceOp op)

Constructors in org.datavec.api.transform.transform.sequence with parameters of type ReduceOp

Constructor and Description
SequenceMovingWindowReduceTransform(String columnName, int lookback, ReduceOp op)
SequenceMovingWindowReduceTransform(String columnName, String newColumnName, int lookback, ReduceOp op, SequenceMovingWindowReduceTransform.EdgeCaseHandling edgeCaseHandling, Writable edgeCaseValue)