smile.data.measure

Class DiscreteMeasure

java.lang.Object

smile.data.measure.DiscreteMeasure

All Implemented Interfaces:

java.io.Serializable, Measure

Direct Known Subclasses:

NominalScale, OrdinalScale

public abstract class DiscreteMeasure
extends java.lang.Object
implements Measure

Discrete data can only take particular values. There may potentially be an infinite number of those values, but each is distinct. Both integer and string variables can be made into discrete measure, but a discrete measure's levels will always be string values.

See Also:

Serialized Form

Field Summary

Fields inherited from interface smile.data.measure.Measure

Currency, Percent

Constructor Summary

Constructors

Constructor and Description
DiscreteMeasure(int[] values, java.lang.String[] levels) Constructor.
DiscreteMeasure(java.util.List<java.lang.String> levels) Constructor.
DiscreteMeasure(java.lang.String... levels) Constructor.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o)
java.lang.String	level(int i) Returns the level string representation.
java.lang.String[]	levels() Returns the levels.
int	size() Returns the number of levels.
java.lang.String	toString(int level) Returns the string value of a level.
java.lang.String	toString(java.lang.Object o) Returns the string representation of a value of the measure.
DataType	type() Returns the data type that is suitable for this measure scale.
java.lang.Number	valueOf(java.lang.String s) Returns a measurement value object represented by the argument string s.
int[]	values() Returns the valid value set.

Methods inherited from class java.lang.Object

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

Constructor Detail

DiscreteMeasure

public DiscreteMeasure(java.lang.String... levels)

Constructor.

Parameters:

levels - the levels of discrete values.

DiscreteMeasure

public DiscreteMeasure(java.util.List<java.lang.String> levels)

Constructor.

Parameters:

levels - the levels of discrete values.

DiscreteMeasure

public DiscreteMeasure(int[] values,
                       java.lang.String[] levels)

Constructor.

Parameters:

values - the valid values.

levels - the levels of discrete values.

Method Detail

size

public int size()

Returns the number of levels.

values

public int[] values()

Returns the valid value set.

levels

public java.lang.String[] levels()

Returns the levels.

level

public java.lang.String level(int i)

Returns the level string representation.

type

public DataType type()

Returns the data type that is suitable for this measure scale.

toString

public java.lang.String toString(int level)

Returns the string value of a level.

toString

public java.lang.String toString(java.lang.Object o)

Description copied from interface: Measure

Returns the string representation of a value of the measure.

Specified by:

toString in interface Measure

valueOf

public java.lang.Number valueOf(java.lang.String s)

Description copied from interface: Measure

Returns a measurement value object represented by the argument string s.

Specified by:

valueOf in interface Measure

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object