Top Description Fields Constructors Methods
javax.visrec.ml.data

public Class BasicDataSet<E>

extends Object
implements DataSet<E>
Class Inheritance
All Implemented Interfaces
javax.visrec.ml.data.DataSet, java.lang.Iterable
Type Parameters
<E>
Type of elements in data set
Imports
java.util.ArrayList, .Arrays, .List, java.util.stream.Collectors
Basic implementation of DataSet interface. Provides a list of data set items with column info.

Field Summary

Modifier and TypeField and Description
private List<Column>
columns

List of data set columns.

protected List<E>
items

List of data set items in this data set.

Constructor Summary

AccessConstructor and Description
protected
BasicDataSet()

public
BasicDataSet(Column...
columns of the data set.
cols)

Creates an instance of BasicDataSet

public
BasicDataSet(String... cols)

public
BasicDataSet(List<E>
items of the data set.
elements)

Creates an instance of BasicDataSet

Method Summary

Modifier and TypeMethod and Description
public String[]
getColumnNames()

public List<Column>
getColumns()

Implements javax.visrec.ml.data.DataSet.getColumns.

Returns the columns of the data set.
public List<E>
getItems()

Implements javax.visrec.ml.data.DataSet.getItems.

Get a collection of the items in the DataSet
public String[]
getTargetColumnsNames()

Implements javax.visrec.ml.data.DataSet.getTargetColumnsNames.

Get the names of target columns.
public void
setAsTargetColumns(int... targetIdxs)

public void
setAsTargetColumns(String... targetColNames)

public void
setColumnNames(String[] columnNames)

public void
setColumns(List<Column> columns)

Implements javax.visrec.ml.data.DataSet.setColumns.

Sets the columns of this data set.
public DataSet<E>[]
split(double...
specific sizes of DataSet
parts)

Implements javax.visrec.ml.data.DataSet.split.

Split data set into parts of specified sizes
Inherited from java.lang.Object:
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Field Detail

columnsback to summary
private List<Column> columns

List of data set columns. Each column provides info about it's name, type.

itemsback to summary
protected List<E> items

List of data set items in this data set.

Constructor Detail

BasicDataSetback to summary
protected BasicDataSet()
BasicDataSetback to summary
public BasicDataSet(Column... cols)

Creates an instance of BasicDataSet

Parameters
cols:Column[]

columns of the data set.

BasicDataSetback to summary
public BasicDataSet(String... cols)
BasicDataSetback to summary
public BasicDataSet(List<E> elements)

Creates an instance of BasicDataSet

Parameters
elements:List<E>

items of the data set.

Method Detail

getColumnNamesback to summary
public String[] getColumnNames()
getColumnsback to summary
public List<Column> getColumns()

Implements javax.visrec.ml.data.DataSet.getColumns.

Doc from javax.visrec.ml.data.DataSet.getColumns.

Returns the columns of the data set.

Annotations
@Override
getItemsback to summary
public List<E> getItems()

Implements javax.visrec.ml.data.DataSet.getItems.

Doc from javax.visrec.ml.data.DataSet.getItems.

Get a collection of the items in the DataSet

Returns:List<E>

Collection

Annotations
@Override
getTargetColumnsNamesback to summary
public String[] getTargetColumnsNames()

Implements javax.visrec.ml.data.DataSet.getTargetColumnsNames.

Doc from javax.visrec.ml.data.DataSet.getTargetColumnsNames.

Get the names of target columns. Target columns are use as target output during the training.

Returns:String[]

Returns target columns

Annotations
@Override
setAsTargetColumnsback to summary
public void setAsTargetColumns(int... targetIdxs)
setAsTargetColumnsback to summary
public void setAsTargetColumns(String... targetColNames)
setColumnNamesback to summary
public void setColumnNames(String[] columnNames)
setColumnsback to summary
public void setColumns(List<Column> columns)

Implements javax.visrec.ml.data.DataSet.setColumns.

Doc from javax.visrec.ml.data.DataSet.setColumns.

Sets the columns of this data set.

Annotations
@Override
splitback to summary
public DataSet<E>[] split(double... parts)

Implements javax.visrec.ml.data.DataSet.split.

Doc from javax.visrec.ml.data.DataSet.split.

Split data set into parts of specified sizes

Parameters
parts:double[]

specific sizes of DataSet

Returns:DataSet<E>[]

array of DataSet

Annotations
@Override