Class PrimitiveVector

java.lang.Object

smile.data.vector.AbstractVector

smile.data.vector.PrimitiveVector

All Implemented Interfaces:

Serializable, ValueVector

Direct Known Subclasses:

BooleanVector, ByteVector, CharVector, DoubleVector, FloatVector, IntVector, LongVector, ShortVector

public abstract class PrimitiveVector
extends AbstractVector

Abstract base class implementation of ValueVector interface.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
PrimitiveVector(StructField field)	Constructor.

Method Summary

Modifier and Type	Method	Description
int	getNullCount()	Returns the number of null/missing values in this vector.
boolean	isNullable()	Returns true if the values of vector may be null.
boolean	isNullAt(int i)	Returns true if the value at the given index is null/missing.
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.
double	sum()	Returns the sum of values.
double	var()	Returns the variance of values.

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, doubleStream, dtype, eq, ge, get, get, get, getBoolean, getByte, getChar, getDouble, getFloat, getInt, getLong, getScale, getShort, getString, gt, intStream, isin, isin, isNull, le, longStream, lt, measure, name, ne, set, size, slice, slice, stream, toDoubleArray, toIntArray, toLongArray, toStringArray, toStringArray, update, withName

Constructor Details

PrimitiveVector

public PrimitiveVector(StructField field)

Constructor.

Parameters:

field - The struct field of the 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.

sum

public double sum()

Returns the sum of values.

Returns:

the sum of values.

var

public double var()

Returns the variance of values.

Returns:

the variance of values.

isNullable

public boolean isNullable()

Description copied from interface: ValueVector

Returns true if the values of vector may be null.

Returns:

true if the values of vector may be null.

isNullAt

public boolean isNullAt(int i)

Description copied from interface: ValueVector

Returns true if the value at the given index is null/missing.

Parameters:

i - the index.

Returns:

true if the value at the given index is null/missing.

getNullCount

public int getNullCount()

Description copied from interface: ValueVector

Returns the number of null/missing values in this vector.

Returns:

the number of null/missing values in this vector.