Package org.tribuo

Class MutableFeatureMap

java.lang.Object

org.tribuo.FeatureMap

org.tribuo.MutableFeatureMap

All Implemented Interfaces:

Serializable, Iterable<VariableInfo>

public class MutableFeatureMap
extends FeatureMap

A feature map that can record new feature value observations.

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.tribuo.FeatureMap

m

Constructor Summary

Constructors

Constructor	Description
MutableFeatureMap()	Creates an empty feature map which converts high cardinality categorical variable infos into reals.
MutableFeatureMap(boolean convertHighCardinality)	Creates an empty feature map which can optionally convert high cardinality categorical variable infos into reals.

Method Summary

Modifier and Type	Method	Description
void	add(String name, double value)	Adds an occurrence of a feature with a given name.
void	clear()	Clears all the feature observations.
VariableInfo	put(VariableInfo info)	Adds a variable info into the feature map.

Methods inherited from class org.tribuo.FeatureMap

domainEquals, get, iterator, keySet, size, toReadableString, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Details

MutableFeatureMap

public MutableFeatureMap()

Creates an empty feature map which converts high cardinality categorical variable infos into reals.

The conversion threshold is CategoricalInfo.THRESHOLD.

MutableFeatureMap

public MutableFeatureMap(boolean convertHighCardinality)

Creates an empty feature map which can optionally convert high cardinality categorical variable infos into reals.

The conversion threshold is CategoricalInfo.THRESHOLD.

Parameters:

convertHighCardinality - Should this feature map convert high cardinality categorical variables into real variables?

Method Details

put

public VariableInfo put(VariableInfo info)

Adds a variable info into the feature map.

Returns the old one if there was a name collision, otherwise returns null.

Parameters:

info - The info to add.

Returns:

The old variable info or null.

add

public void add(String name,
 double value)

Adds an occurrence of a feature with a given name.

Parameters:

name - the name of the feature.

value - the observed value of that feature.

clear

public void clear()

Clears all the feature observations.