BaseVector

Type Parameters:

T - the type of vector elements.

TS - the type of stream elements.

S - the type of stream.

All Superinterfaces:

java.io.Serializable

All Known Subinterfaces:

BooleanVector, ByteVector, CharVector, DoubleVector, FloatVector, IntVector, LongVector, ShortVector, StringVector, Vector<T>
```
public interface BaseVector<T,TS,S extends java.util.stream.BaseStream<TS,S>>
extends java.io.Serializable
```
Base interface for immutable named vectors, which are sequences of elements supporting random access and sequential stream operations.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`default BaseVector<T,TS,S>`	`apply(int... index)` Returns a new vector with selected entries.
`default T`	`apply(int i)` Returns the value at position i, which may be null.
`java.lang.Object`	`array()` Returns the array that backs this vector.
`default StructField`	`field()` Returns a struct field corresponding to this vector.
`BaseVector<T,TS,S>`	`get(int... index)` Returns a new vector with selected entries.
`T`	`get(int i)` Returns the value at position i, which may be null.
`byte`	`getByte(int i)` Returns the byte value at position i.
`double`	`getDouble(int i)` Returns the double value at position i.
`float`	`getFloat(int i)` Returns the float value at position i.
`int`	`getInt(int i)` Returns the integer value at position i.
`long`	`getLong(int i)` Returns the long value at position i.
`short`	`getShort(int i)` Returns the short value at position i.
`default Measure`	`measure()` Returns the (optional) level of measurements.
`java.lang.String`	`name()` Return the (optional) name associated with vector.
`int`	`size()` Number of elements in the vector.
`S`	`stream()` Returns a (possibly parallel) Stream with this vector as its source.
`default double[]`	`toDoubleArray()` Returns a double array of this vector.
`default double[]`	`toDoubleArray(double[] a)` Copies the vector value as double to the given array.
`default int[]`	`toIntArray()` Returns an integer array of this vector.
`default int[]`	`toIntArray(int[] a)` Copies the vector value as int to the given array.
`default java.lang.String[]`	`toStringArray()` Returns a string array of this vector.
`default java.lang.String[]`	`toStringArray(java.lang.String[] a)` Copies the vector value as string to the given array.
`DataType`	`type()` Returns the element type.

- Method Detail
  - name
```
java.lang.String name()
```
    Return the (optional) name associated with vector.
  - type
```
DataType type()
```
    Returns the element type.
  - measure
```
default Measure measure()
```
    Returns the (optional) level of measurements. Only valid for number types.
  - field
```
default StructField field()
```
    Returns a struct field corresponding to this vector.
  - size
```
int size()
```
    Number of elements in the vector.
  - array
```
java.lang.Object array()
```
    Returns the array that backs this vector. This is mostly for smile internal use for high performance. The application developers should not use this method.
  - toDoubleArray
```
default double[] toDoubleArray()
```
    Returns a double array of this vector.
  - toDoubleArray
```
default double[] toDoubleArray(double[] a)
```
    Copies the vector value as double to the given array.
    
    Returns:
    
    the input array a.
  - toIntArray
```
default int[] toIntArray()
```
    Returns an integer array of this vector.
  - toIntArray
```
default int[] toIntArray(int[] a)
```
    Copies the vector value as int to the given array.
    
    Returns:
    
    the input array a.
  - toStringArray
```
default java.lang.String[] toStringArray()
```
    Returns a string array of this vector.
  - toStringArray
```
default java.lang.String[] toStringArray(java.lang.String[] a)
```
    Copies the vector value as string to the given array.
    
    Returns:
    
    the input array a.
  - get
```
T get(int i)
```
    Returns the value at position i, which may be null.
  - get
```
BaseVector<T,TS,S> get(int... index)
```
    Returns a new vector with selected entries.
    
    Parameters:
    
    index - the index of selected entries.
  - getByte
```
byte getByte(int i)
```
    Returns the byte value at position i.
  - getShort
```
short getShort(int i)
```
    Returns the short value at position i.
  - getInt
```
int getInt(int i)
```
    Returns the integer value at position i.
  - getLong
```
long getLong(int i)
```
    Returns the long value at position i.
  - getFloat
```
float getFloat(int i)
```
    Returns the float value at position i.
  - getDouble
```
double getDouble(int i)
```
    Returns the double value at position i.
  - apply
```
default T apply(int i)
```
    Returns the value at position i, which may be null.
  - apply
```
default BaseVector<T,TS,S> apply(int... index)
```
    Returns a new vector with selected entries.
    
    Parameters:
    
    index - the index of selected entries.
  - stream
```
S stream()
```
    Returns a (possibly parallel) Stream with this vector as its source.
    
    Returns:
    
    a (possibly parallel) Stream with this vector as its source.

Interface BaseVector<T,TS,S extends java.util.stream.BaseStream<TS,S>>

Method Summary

Method Detail

name

type

measure

field

size

array

toDoubleArray

toDoubleArray

toIntArray

toIntArray

toStringArray

toStringArray

get

get

getByte

getShort

getInt

getLong

getFloat

getDouble

apply

apply

stream