tech.tablesaw.api

Class BooleanColumn

java.lang.Object

tech.tablesaw.columns.AbstractColumn

tech.tablesaw.api.BooleanColumn

All Implemented Interfaces:

IntConvertibleColumn, Column, BooleanMapUtils

public class BooleanColumn
extends AbstractColumn
implements BooleanMapUtils, IntConvertibleColumn

A column in a base table that contains float values

Field Summary

Fields

Modifier and Type	Field and Description
static byte	MISSING_VALUE

Constructor Summary

Constructors

Constructor and Description
BooleanColumn(ColumnMetadata metadata)
BooleanColumn(String name)
BooleanColumn(String name, int initialSize)
BooleanColumn(String name, Selection hits, int columnSize)

Method Summary

Modifier and Type	Method and Description
void	append(boolean b)
void	append(byte b)
void	append(Column column)
void	appendCell(String object)
byte[]	asBytes(int row) Returns the contents of the cell at rowNumber as a byte[].
it.unimi.dsi.fastutil.booleans.BooleanSet	asSet()
it.unimi.dsi.fastutil.bytes.ByteIterator	byteIterator()
int	byteSize() Returns the width of a cell in this column, in bytes.
void	clear()
boolean	contains(boolean aBoolean)
static byte	convert(String stringValue)
BooleanColumn	copy() Returns a deep copy of the receiver
int	countFalse()
int	countMissing() Returns the count of missing values in this column
int	countTrue()
int	countUnique() Returns the count of unique values in this column.
it.unimi.dsi.fastutil.bytes.ByteArrayList	data() Returns a ByteArrayList containing 0 (false), 1 (true) or Byte.MIN_VALUE (missing)
BooleanColumn	emptyCopy() Returns a copy of the receiver with no data.
BooleanColumn	emptyCopy(int rowSize) Returns an empty copy of the receiver, with its internal storage initialized to the given row size.
Boolean	get(int i) Returns the value in row i as a Boolean
byte	getByte(int i) Returns the value in row i as a byte (0, 1, or Byte.MIN_VALUE representing missing data)
String	getString(int row) Returns a string representation of the value at the given row.
boolean	isEmpty() Returns true if the column has no data
Selection	isEqualTo(BooleanColumn other)
Selection	isFalse()
Selection	isMissing()
Selection	isNotMissing()
Selection	isTrue()
Iterator<Boolean>	iterator()
String	print()
it.unimi.dsi.fastutil.ints.IntComparator	rowComparator()
Selection	select(BooleanPredicate predicate)
void	set(int i, boolean b)
int	size()
void	sortAscending()
void	sortDescending()
Table	summary()
double[]	toDoubleArray()
int[]	toIntArray()
IntColumn	toIntColumn()
String	toString()
ColumnType	type() Returns this column's ColumnType
BooleanColumn	unique() Returns a column of the same type as the receiver, containing only the unique values of the receiver.

Methods inherited from class tech.tablesaw.columns.AbstractColumn

columnMetadata, columnWidth, comment, difference, id, metadata, name, setComment, setName

Methods inherited from class java.lang.Object

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

Methods inherited from interface tech.tablesaw.mapping.BooleanMapUtils

and, or

Methods inherited from interface tech.tablesaw.columns.Column

columnMetadata, columnWidth, comment, difference, first, first, id, last, last, metadata, name, rolling, setComment, setName, subset, title

Methods inherited from interface tech.tablesaw.api.IntConvertibleColumn

asIntegerSet

Field Detail

MISSING_VALUE

public static final byte MISSING_VALUE

See Also:

Constant Field Values

Constructor Detail

BooleanColumn

public BooleanColumn(ColumnMetadata metadata)

BooleanColumn

public BooleanColumn(String name)

BooleanColumn

public BooleanColumn(String name,
                     int initialSize)

BooleanColumn

public BooleanColumn(String name,
                     Selection hits,
                     int columnSize)

Method Detail

convert

public static byte convert(String stringValue)

size

public int size()

Specified by:

size in interface Column

summary

public Table summary()

Specified by:

summary in interface Column

countMissing

public int countMissing()

Returns the count of missing values in this column

Specified by:

countMissing in interface Column

Returns:

missing values as int

countUnique

public int countUnique()

Description copied from interface: Column

Returns the count of unique values in this column.

Specified by:

countUnique in interface Column

Returns:

unique values as int

unique

public BooleanColumn unique()

Description copied from interface: Column

Returns a column of the same type as the receiver, containing only the unique values of the receiver.

Specified by:

unique in interface Column

Returns:

a Column

type

public ColumnType type()

Description copied from interface: Column

Returns this column's ColumnType

Specified by:

type in interface Column

Returns:

ColumnType

append

public void append(boolean b)

append

public void append(byte b)

getString

public String getString(int row)

Description copied from interface: Column

Returns a string representation of the value at the given row.

Specified by:

getString in interface Column

Parameters:

row - The index of the row.

Returns:

value as String

emptyCopy

public BooleanColumn emptyCopy()

Description copied from interface: Column

Returns a copy of the receiver with no data. The column name and type are the same.

Specified by:

emptyCopy in interface Column

Returns:

a empty copy of Column

emptyCopy

public BooleanColumn emptyCopy(int rowSize)

Description copied from interface: Column

Returns an empty copy of the receiver, with its internal storage initialized to the given row size.

Specified by:

emptyCopy in interface Column

Parameters:

rowSize - the initial row size

Returns:

a Column

clear

public void clear()

Specified by:

clear in interface Column

copy

public BooleanColumn copy()

Description copied from interface: Column

Returns a deep copy of the receiver

Specified by:

copy in interface Column

Returns:

a Column

sortAscending

public void sortAscending()

Specified by:

sortAscending in interface Column

sortDescending

public void sortDescending()

Specified by:

sortDescending in interface Column

appendCell

public void appendCell(String object)

Specified by:

appendCell in interface Column

Specified by:

appendCell in class AbstractColumn

get

public Boolean get(int i)

Returns the value in row i as a Boolean

Parameters:

i - the row number

Returns:

A Boolean object (may be null)

getByte

public byte getByte(int i)

Returns the value in row i as a byte (0, 1, or Byte.MIN_VALUE representing missing data)

Parameters:

i - the row number

isEmpty

public boolean isEmpty()

Description copied from interface: Column

Returns true if the column has no data

Specified by:

isEmpty in interface Column

Returns:

true if empty, false if not

countTrue

public int countTrue()

countFalse

public int countFalse()

isFalse

public Selection isFalse()

isTrue

public Selection isTrue()

isEqualTo

public Selection isEqualTo(BooleanColumn other)

data

public it.unimi.dsi.fastutil.bytes.ByteArrayList data()

Returns a ByteArrayList containing 0 (false), 1 (true) or Byte.MIN_VALUE (missing)

set

public void set(int i,
                boolean b)

rowComparator

public it.unimi.dsi.fastutil.ints.IntComparator rowComparator()

Specified by:

rowComparator in interface Column

append

public void append(Column column)

Specified by:

append in interface Column

toDoubleArray

public double[] toDoubleArray()

Specified by:

toDoubleArray in interface Column

print

public String print()

Specified by:

print in interface Column

isMissing

public Selection isMissing()

Specified by:

isMissing in interface Column

isNotMissing

public Selection isNotMissing()

Specified by:

isNotMissing in interface Column

iterator

public Iterator<Boolean> iterator()

byteIterator

public it.unimi.dsi.fastutil.bytes.ByteIterator byteIterator()

toString

public String toString()

Overrides:

toString in class Object

asSet

public it.unimi.dsi.fastutil.booleans.BooleanSet asSet()

contains

public boolean contains(boolean aBoolean)

byteSize

public int byteSize()

Description copied from interface: Column

Returns the width of a cell in this column, in bytes.

Specified by:

byteSize in interface Column

Returns:

width in bytes

asBytes

public byte[] asBytes(int row)

Description copied from interface: Column

Returns the contents of the cell at rowNumber as a byte[].

Specified by:

asBytes in interface Column

Parameters:

row - index of the row

Returns:

content as byte[]

select

public Selection select(BooleanPredicate predicate)

toIntArray

public int[] toIntArray()

Specified by:

toIntArray in interface IntConvertibleColumn

toIntColumn

public IntColumn toIntColumn()