smile.data.vector

Interface DoubleVector

All Superinterfaces:

BaseVector<java.lang.Double,java.lang.Double,java.util.stream.DoubleStream>, java.io.Serializable

public interface DoubleVector
extends BaseVector<java.lang.Double,java.lang.Double,java.util.stream.DoubleStream>

An immutable double vector.

Method Summary

Modifier and Type	Method and Description
double[]	array() Returns the array that backs this vector.
DoubleVector	get(int... index) Returns a new vector with selected entries.
default byte	getByte(int i) Returns the byte value at position i.
default float	getFloat(int i) Returns the float value at position i.
default int	getInt(int i) Returns the integer value at position i.
default long	getLong(int i) Returns the long value at position i.
default short	getShort(int i) Returns the short value at position i.
static DoubleVector	of(java.lang.String name, double[] vector) Creates a named double vector.
static DoubleVector	of(java.lang.String name, java.util.stream.DoubleStream stream) Creates a named double vector.
static DoubleVector	of(StructField field, double[] vector) Creates a named double vector.
static DoubleVector	of(StructField field, java.util.stream.DoubleStream stream) Creates a named double vector.
default java.lang.String	toString(int n) Returns the string representation of vector.
default DataType	type() Returns the element type.

Methods inherited from interface smile.data.vector.BaseVector

apply, apply, field, get, getDouble, measure, name, size, stream, toDoubleArray, toDoubleArray, toIntArray, toIntArray, toStringArray, toStringArray

Method Detail

type

default DataType type()

Description copied from interface: BaseVector

Returns the element type.

Specified by:

type in interface BaseVector<java.lang.Double,java.lang.Double,java.util.stream.DoubleStream>

array

double[] array()

Description copied from interface: BaseVector

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.

Specified by:

array in interface BaseVector<java.lang.Double,java.lang.Double,java.util.stream.DoubleStream>

get

DoubleVector get(int... index)

Description copied from interface: BaseVector

Returns a new vector with selected entries.

Specified by:

get in interface BaseVector<java.lang.Double,java.lang.Double,java.util.stream.DoubleStream>

Parameters:

index - the index of selected entries.

getByte

default byte getByte(int i)

Description copied from interface: BaseVector

Returns the byte value at position i.

Specified by:

getByte in interface BaseVector<java.lang.Double,java.lang.Double,java.util.stream.DoubleStream>

getShort

default short getShort(int i)

Description copied from interface: BaseVector

Returns the short value at position i.

Specified by:

getShort in interface BaseVector<java.lang.Double,java.lang.Double,java.util.stream.DoubleStream>

getInt

default int getInt(int i)

Description copied from interface: BaseVector

Returns the integer value at position i.

Specified by:

getInt in interface BaseVector<java.lang.Double,java.lang.Double,java.util.stream.DoubleStream>

getLong

default long getLong(int i)

Description copied from interface: BaseVector

Returns the long value at position i.

Specified by:

getLong in interface BaseVector<java.lang.Double,java.lang.Double,java.util.stream.DoubleStream>

getFloat

default float getFloat(int i)

Description copied from interface: BaseVector

Returns the float value at position i.

Specified by:

getFloat in interface BaseVector<java.lang.Double,java.lang.Double,java.util.stream.DoubleStream>

toString

default java.lang.String toString(int n)

Returns the string representation of vector.

Parameters:

n - Number of elements to show

of

static DoubleVector of(java.lang.String name,
                       double[] vector)

Creates a named double vector.

Parameters:

name - the name of vector.

vector - the data of vector.

of

static DoubleVector of(java.lang.String name,
                       java.util.stream.DoubleStream stream)

Creates a named double vector.

Parameters:

name - the name of vector.

stream - the data stream of vector.

of

static DoubleVector of(StructField field,
                       double[] vector)

Creates a named double vector.

Parameters:

field - the struct field of vector.

vector - the data of vector.

of

static DoubleVector of(StructField field,
                       java.util.stream.DoubleStream stream)

Creates a named double vector.

Parameters:

field - the struct field of vector.

stream - the data stream of vector.