All Superinterfaces:

it.unimi.dsi.fastutil.bytes.ByteIterable, Iterable<Byte>

All Known Implementing Classes:

BitSetBooleanData
```
public interface BooleanData
extends it.unimi.dsi.fastutil.bytes.ByteIterable
```
A container for boolean data

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`add(byte booleanValue)`	Adds a boolean value represented as a byte, where 0=false, 1=true, and -1=missing
`Selection`	`asSelection()`	Returns a selection matching all the true values in the data
`void`	`clear()`	Removes all data values
`boolean`	`contains(byte b)`	Returns true if the value at b is true.
`BooleanData`	`copy()`	Returns a copy of this BooleanData object
`int`	`countFalse()`	Returns the number of false values in the data *
`int`	`countMissing()`	Returns the number of missing values in the data *
`int`	`countTrue()`	Returns the number of true values in the data *
`int`	`countUnique()`	Returns the number of unique values in the data.
`byte[]`	`falseBytes()`	Returns a byte representation of the true values, encoded in the format specified in `BitSet.toByteArray()`
`byte`	`getByte(int i)`	Returns the value at i as a byte, where -1 represents missing values
`boolean`	`isEmpty()`	Returns true if the data is empty, and false otherwise.
`Selection`	`isFalse()`	Returns a selection matching all the false values in the data
`Selection`	`isMissing()`	Returns a selection matching all the missing values in the data
`Selection`	`isTrue()`	Returns a selection matching all the true values in the data
`byte[]`	`missingBytes()`	Returns a byte representation of the missing values, encoded in the format specified in `BitSet.toByteArray()`
`void`	`set(int i, byte b)`	Sets the value at position i to byte b
`void`	`setFalseBytes(byte[] bytes)`	Sets the false values in the data from a byte[] encoding
`void`	`setMissingBytes(byte[] bytes)`	Sets the missing values in the data from a byte[] encoding
`void`	`setTrueBytes(byte[] bytes)`	Sets the true values in the data from a byte[] encoding
`int`	`size()`	Returns the number of values in the data, including missing values
`void`	`sortAscending()`	Sorts the data in-place in ascending order, with missing values first
`void`	`sortDescending()`	Sorts the data in-place in descending order, with missing values last
`byte[]`	`toByteArray()`	Returns the data as a byte[] containing 0 and 1, with any missing values encoded as -128
`it.unimi.dsi.fastutil.bytes.ByteArrayList`	`toByteArrayList()`	Returns the data as a ByteArrayList containing 0 and 1, with any missing values encoded as -128
`byte[]`	`trueBytes()`	Returns a byte representation of the false values, encoded in the format specified in `BitSet.toByteArray()`

Methods inherited from interface it.unimi.dsi.fastutil.bytes.ByteIterable
forEach, forEach, forEach, intIterator, intSpliterator, iterator, spliterator

- Method Detail
  - size
```
int size()
```
    Returns the number of values in the data, including missing values
  - add
```
void add(byte booleanValue)
```
    Adds a boolean value represented as a byte, where 0=false, 1=true, and -1=missing
  - clear
```
void clear()
```
    Removes all data values
  - copy
```
BooleanData copy()
```
    Returns a copy of this BooleanData object
  - getByte
```
byte getByte(int i)
```
    Returns the value at i as a byte, where -1 represents missing values
  - countFalse
```
int countFalse()
```
    Returns the number of false values in the data *
  - countTrue
```
int countTrue()
```
    Returns the number of true values in the data *
  - countMissing
```
int countMissing()
```
    Returns the number of missing values in the data *
  - countUnique
```
int countUnique()
```
    Returns the number of unique values in the data. There can only be 3 (true, false, and missing) *
  - sortAscending
```
void sortAscending()
```
    Sorts the data in-place in ascending order, with missing values first
  - sortDescending
```
void sortDescending()
```
    Sorts the data in-place in descending order, with missing values last
  - toByteArray
```
byte[] toByteArray()
```
    Returns the data as a byte[] containing 0 and 1, with any missing values encoded as -128
  - toByteArrayList
```
it.unimi.dsi.fastutil.bytes.ByteArrayList toByteArrayList()
```
    Returns the data as a ByteArrayList containing 0 and 1, with any missing values encoded as -128
  - set
```
void set(int i,
         byte b)
```
    Sets the value at position i to byte b
    
    Parameters:
    
    i - the 0-based index of the element in the data
    
    b - the value to set, should be 0, 1, or -128 only
  - isEmpty
```
boolean isEmpty()
```
    Returns true if the data is empty, and false otherwise. Empty here means only missing values
  - contains
```
boolean contains(byte b)
```
    Returns true if the value at b is true.
  - asSelection
```
Selection asSelection()
```
    Returns a selection matching all the true values in the data
  - isFalse
```
Selection isFalse()
```
    Returns a selection matching all the false values in the data
  - isTrue
```
Selection isTrue()
```
    Returns a selection matching all the true values in the data
  - isMissing
```
Selection isMissing()
```
    Returns a selection matching all the missing values in the data
  - falseBytes
```
byte[] falseBytes()
```
    Returns a byte representation of the true values, encoded in the format specified in BitSet.toByteArray()
  - trueBytes
```
byte[] trueBytes()
```
    Returns a byte representation of the false values, encoded in the format specified in BitSet.toByteArray()
  - missingBytes
```
byte[] missingBytes()
```
    Returns a byte representation of the missing values, encoded in the format specified in BitSet.toByteArray()
  - setTrueBytes
```
void setTrueBytes(byte[] bytes)
```
    Sets the true values in the data from a byte[] encoding
    
    Parameters:
    
    bytes - The true values encoded in the format specified in BitSet
  - setFalseBytes
```
void setFalseBytes(byte[] bytes)
```
    Sets the false values in the data from a byte[] encoding
    
    Parameters:
    
    bytes - The false values encoded in the format specified in BitSet
  - setMissingBytes
```
void setMissingBytes(byte[] bytes)
```
    Sets the missing values in the data from a byte[] encoding
    
    Parameters:
    
    bytes - The missing values encoded in the format specified in BitSet

Interface BooleanData

Method Summary

Methods inherited from interface it.unimi.dsi.fastutil.bytes.ByteIterable

Method Detail

size

add

clear

copy

getByte

countFalse

countTrue

countMissing

countUnique

sortAscending

sortDescending

toByteArray

toByteArrayList

set

isEmpty

contains

asSelection

isFalse

isTrue

isMissing

falseBytes

trueBytes

missingBytes

setTrueBytes

setFalseBytes

setMissingBytes