Class NumberVector<T extends Number>

java.lang.Object

smile.data.vector.AbstractVector

smile.data.vector.ObjectVector<T>

smile.data.vector.NumberVector<T>

Type Parameters:

T - a subclass of Number.

All Implemented Interfaces:

Serializable, ValueVector

public class NumberVector<T extends Number>
extends ObjectVector<T>

A number object vector.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
NumberVector(StructField field, T[] vector)	Constructor.

Method Summary

Modifier and Type	Method	Description
DoubleStream	doubleStream()	Returns a DoubleStream consisting of the elements of this vector, converted to double.
void	fillna(double value)	Fills null/NaN/Inf values with the specified value.
NumberVector<T>	get(Index index)	Returns a new vector with selected entries.
IntStream	intStream()	Returns an IntStream consisting of the elements of this vector, converted to integer.
LongStream	longStream()	Returns a LongStream consisting of the elements of this vector, converted to long.
double	max()	Returns the maximal value.
double	mean()	Returns the mean.
double	median()	Returns the median.
double	min()	Returns the minimal value.
double	q1()	Returns the 25% quantile.
double	q3()	Returns the 75% quantile.
double	stdev()	Returns the standard deviation.
NumberVector<T>	withName(String name)	Returns the vector with the new name.

Methods inherited from class ObjectVector

distinct, get, getBoolean, getByte, getChar, getDouble, getFloat, getInt, getLong, getNullCount, getShort, isNullable, isNullAt, of, of, of, of, of, of, of, of, set, size, stream

Methods inherited from class AbstractVector

field, toString

Methods inherited from class Object

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

Methods inherited from interface ValueVector

anyNull, apply, apply, dtype, eq, ge, get, getScale, getString, gt, isin, isNull, le, lt, measure, name, ne, slice, slice, toDoubleArray, toIntArray, toLongArray, toStringArray, toStringArray, update

Constructor Details

NumberVector

public NumberVector(StructField field,
 T[] vector)

Constructor.

Parameters:

field - the struct field of vector.

vector - the elements of vector.

Method Details

mean

public double mean()

Returns the mean.

Returns:

the mean.

stdev

public double stdev()

Returns the standard deviation.

Returns:

the standard deviation.

min

public double min()

Returns the minimal value.

Returns:

the minimal value.

max

public double max()

Returns the maximal value.

Returns:

the maximal value.

median

public double median()

Returns the median.

Returns:

the median.

q1

public double q1()

Returns the 25% quantile.

Returns:

the 25% quantile.

q3

public double q3()

Returns the 75% quantile.

Returns:

the 75% quantile.

fillna

public void fillna(double value)

Fills null/NaN/Inf values with the specified value.

Parameters:

value - the value to replace NAs.

get

public NumberVector<T> get(Index index)

Description copied from interface: ValueVector

Returns a new vector with selected entries.

Specified by:

get in interface ValueVector

Overrides:

get in class ObjectVector<T extends Number>

Parameters:

index - the index of selected entries.

Returns:

the new vector of selected entries.

withName

public NumberVector<T> withName(String name)

Description copied from interface: ValueVector

Returns the vector with the new name.

Specified by:

withName in interface ValueVector

Overrides:

withName in class ObjectVector<T extends Number>

Parameters:

name - the new name.

Returns:

the vector with the new name.

intStream

public IntStream intStream()

Description copied from interface: ValueVector

Returns an IntStream consisting of the elements of this vector, converted to integer.

Returns:

an IntStream consisting of the elements of this vector.

longStream

public LongStream longStream()

Description copied from interface: ValueVector

Returns a LongStream consisting of the elements of this vector, converted to long.

Returns:

a LongStream consisting of the elements of this vector.

doubleStream

public DoubleStream doubleStream()

Description copied from interface: ValueVector

Returns a DoubleStream consisting of the elements of this vector, converted to double.

Returns:

a DoubleStream consisting of the elements of this vector.