org.nd4j.linalg.dataset

Class DistributionStats.Builder

java.lang.Object

org.nd4j.linalg.dataset.DistributionStats.Builder

Enclosing class:

DistributionStats

public static class DistributionStats.Builder
extends Object

Builder class that can incrementally update a running mean and variance in order to create statistics for a large set of data

Constructor Summary

Constructors

Constructor and Description
Builder()

Method Summary

Modifier and Type	Method and Description
DistributionStats.Builder	add(INDArray data, INDArray mask) Add rows of data to the statistics
DistributionStats.Builder	addFeatures(DataSet dataSet) Add the features of a DataSet to the statistics
DistributionStats.Builder	addLabels(DataSet dataSet) Add the labels of a DataSet to the statistics
DistributionStats	build() Create a DistributionStats object from the data ingested so far.
static List<DistributionStats>	buildList(List<DistributionStats.Builder> builders) Utility function for building a list of DistributionStat objects from a list of builders

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

public Builder()

Method Detail

addFeatures

public DistributionStats.Builder addFeatures(@NonNull
                                             DataSet dataSet)

Add the features of a DataSet to the statistics

addLabels

public DistributionStats.Builder addLabels(@NonNull
                                           DataSet dataSet)

Add the labels of a DataSet to the statistics

add

public DistributionStats.Builder add(@NonNull
                                     INDArray data,
                                     INDArray mask)

Add rows of data to the statistics

Parameters:

data - the matrix containing multiple rows of data to include

mask - (optionally) the mask of the data, useful for e.g. time series

build

public DistributionStats build()

Create a DistributionStats object from the data ingested so far. Can be used multiple times when updating online.

buildList

public static List<DistributionStats> buildList(@NonNull
                                                List<DistributionStats.Builder> builders)

Utility function for building a list of DistributionStat objects from a list of builders

Parameters:

builders - the builders

Returns:

the list of DistributionStat objects