Package smile.data.vector

Class NullablePrimitiveVector

java.lang.Object

smile.data.vector.AbstractVector

smile.data.vector.NullablePrimitiveVector

All Implemented Interfaces:

Serializable, ValueVector

Direct Known Subclasses:

NullableBooleanVector, NullableByteVector, NullableCharVector, NullableDoubleVector, NullableFloatVector, NullableIntVector, NullableLongVector, NullableShortVector

public abstract class NullablePrimitiveVector
extends AbstractVector

Abstract base class implementation of ValueVector interface.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
NullablePrimitiveVector(StructField field, BitSet nullMask)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	fillna(double value)	Fills NaN/Inf values with the specified value.
int	getNullCount()	Returns the number of null/missing values in this vector.
BitSet	getNullMask()	Returns the null bitmap mask.
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.
void	setNullMask(BitSet mask)	Sets the null bitmap mask.
double	stdev()	Returns the standard deviation.

Methods inherited from class smile.data.vector.AbstractVector

field, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface smile.data.vector.ValueVector

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

Constructor Details

NullablePrimitiveVector

public NullablePrimitiveVector(StructField field,
 BitSet nullMask)

Constructor.

Parameters:

field - The struct field of the vector.

nullMask - The null bitmap. The bit is 1 if the value is null.

Method Details

mean

public double mean()

Returns the mean.

stdev

public double stdev()

Returns the standard deviation.

min

public double min()

Returns the minimal value.

max

public double max()

Returns the maximal value.

median

public double median()

Returns the median.

q1

public double q1()

Returns the 25% quantile.

q3

public double q3()

Returns the 75% quantile.

fillna

public void fillna(double value)

Fills NaN/Inf values with the specified value.

Parameters:

value - the value to replace NAs.

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.

setNullMask

public void setNullMask(BitSet mask)

Sets the null bitmap mask.

Parameters:

mask - The null bitmap mask.

getNullMask

public BitSet getNullMask()

Returns the null bitmap mask.

Returns:

the null bitmap mask.