org.apache.ignite.ml.tree.data

Class DecisionTreeDataBuilder<K,V,C extends Serializable>

java.lang.Object

org.apache.ignite.ml.tree.data.DecisionTreeDataBuilder<K,V,C>

Type Parameters:

K - Type of a key in upstream data.

V - Type of a value in upstream data.

C - Type of a partition context.

All Implemented Interfaces:

Serializable, PartitionDataBuilder<K,V,C,DecisionTreeData>

public class DecisionTreeDataBuilder<K,V,C extends Serializable>
extends Object
implements PartitionDataBuilder<K,V,C,DecisionTreeData>

A partition data builder that makes DecisionTreeData.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DecisionTreeDataBuilder(IgniteBiFunction<K,V,double[]> featureExtractor, IgniteBiFunction<K,V,Double> lbExtractor) Constructs a new instance of decision tree data builder.

Method Summary

Modifier and Type	Method and Description
DecisionTreeData	build(Iterator<UpstreamEntry<K,V>> upstreamData, long upstreamDataSize, C ctx) Builds a new partition data from a partition upstream data and partition context

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ignite.ml.dataset.PartitionDataBuilder

andThen

Constructor Detail

DecisionTreeDataBuilder

public DecisionTreeDataBuilder(IgniteBiFunction<K,V,double[]> featureExtractor,
                               IgniteBiFunction<K,V,Double> lbExtractor)

Constructs a new instance of decision tree data builder.

Parameters:

featureExtractor - Function that extracts features from an upstream data.

lbExtractor - Function that extracts labels from an upstream data.

Method Detail

build

public DecisionTreeData build(Iterator<UpstreamEntry<K,V>> upstreamData,
                              long upstreamDataSize,
                              C ctx)

Builds a new partition data from a partition upstream data and partition context

Specified by:

build in interface PartitionDataBuilder<K,V,C extends Serializable,DecisionTreeData>

Parameters:

upstreamData - Partition upstream data.

upstreamDataSize - Partition upstream data size.

ctx - Partition context.

Returns:

Partition data.