org.tribuo.util.infotheory.impl

Class PairDistribution<T1,T2>

java.lang.Object

org.tribuo.util.infotheory.impl.PairDistribution<T1,T2>

Type Parameters:

T1 - The type of the first element

T2 - The type of the second element

public class PairDistribution<T1,T2>
extends Object

A count distribution over CachedPair objects.

Field Summary

Fields

Modifier and Type	Field and Description
long	count
Map<T1,com.oracle.labs.mlrg.olcut.util.MutableLong>	firstCount
Map<CachedPair<T1,T2>,com.oracle.labs.mlrg.olcut.util.MutableLong>	jointCounts
Map<T2,com.oracle.labs.mlrg.olcut.util.MutableLong>	secondCount

Constructor Summary

Constructors

Constructor and Description
PairDistribution(long count, LinkedHashMap<CachedPair<T1,T2>,com.oracle.labs.mlrg.olcut.util.MutableLong> jointCounts, LinkedHashMap<T1,com.oracle.labs.mlrg.olcut.util.MutableLong> firstCount, LinkedHashMap<T2,com.oracle.labs.mlrg.olcut.util.MutableLong> secondCount)
PairDistribution(long count, Map<CachedPair<T1,T2>,com.oracle.labs.mlrg.olcut.util.MutableLong> jointCounts, Map<T1,com.oracle.labs.mlrg.olcut.util.MutableLong> firstCount, Map<T2,com.oracle.labs.mlrg.olcut.util.MutableLong> secondCount)

Method Summary

Modifier and Type	Method and Description
static <T1,T2> PairDistribution<T1,T2>	constructFromLists(List<T1> first, List<T2> second) Generates the counts for two vectors.
static <T1,T2> PairDistribution<T1,T2>	constructFromMap(Map<CachedPair<T1,T2>,com.oracle.labs.mlrg.olcut.util.MutableLong> jointCount)
static <T1,T2> PairDistribution<T1,T2>	constructFromMap(Map<CachedPair<T1,T2>,com.oracle.labs.mlrg.olcut.util.MutableLong> jointCount, int aSize, int bSize)
static <T1,T2> PairDistribution<T1,T2>	constructFromMap(Map<CachedPair<T1,T2>,com.oracle.labs.mlrg.olcut.util.MutableLong> jointCount, Map<T1,com.oracle.labs.mlrg.olcut.util.MutableLong> aCount, Map<T2,com.oracle.labs.mlrg.olcut.util.MutableLong> bCount)

Methods inherited from class java.lang.Object

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

Field Detail

count

public final long count

jointCounts

public final Map<CachedPair<T1,T2>,com.oracle.labs.mlrg.olcut.util.MutableLong> jointCounts

firstCount

public final Map<T1,com.oracle.labs.mlrg.olcut.util.MutableLong> firstCount

secondCount

public final Map<T2,com.oracle.labs.mlrg.olcut.util.MutableLong> secondCount

Constructor Detail

PairDistribution

public PairDistribution(long count,
                        Map<CachedPair<T1,T2>,com.oracle.labs.mlrg.olcut.util.MutableLong> jointCounts,
                        Map<T1,com.oracle.labs.mlrg.olcut.util.MutableLong> firstCount,
                        Map<T2,com.oracle.labs.mlrg.olcut.util.MutableLong> secondCount)

PairDistribution

public PairDistribution(long count,
                        LinkedHashMap<CachedPair<T1,T2>,com.oracle.labs.mlrg.olcut.util.MutableLong> jointCounts,
                        LinkedHashMap<T1,com.oracle.labs.mlrg.olcut.util.MutableLong> firstCount,
                        LinkedHashMap<T2,com.oracle.labs.mlrg.olcut.util.MutableLong> secondCount)

Method Detail

constructFromLists

public static <T1,T2> PairDistribution<T1,T2> constructFromLists(List<T1> first,
                                                                 List<T2> second)

Generates the counts for two vectors. Returns a PairDistribution containing the joint count, and the two marginal counts.

Type Parameters:

T1 - Type of the first array.

T2 - Type of the second array.

Parameters:

first - An array of values.

second - Another array of values.

Returns:

The joint counts and the two marginal counts.

constructFromMap

public static <T1,T2> PairDistribution<T1,T2> constructFromMap(Map<CachedPair<T1,T2>,com.oracle.labs.mlrg.olcut.util.MutableLong> jointCount)

constructFromMap

public static <T1,T2> PairDistribution<T1,T2> constructFromMap(Map<CachedPair<T1,T2>,com.oracle.labs.mlrg.olcut.util.MutableLong> jointCount,
                                                               int aSize,
                                                               int bSize)

constructFromMap

public static <T1,T2> PairDistribution<T1,T2> constructFromMap(Map<CachedPair<T1,T2>,com.oracle.labs.mlrg.olcut.util.MutableLong> jointCount,
                                                               Map<T1,com.oracle.labs.mlrg.olcut.util.MutableLong> aCount,
                                                               Map<T2,com.oracle.labs.mlrg.olcut.util.MutableLong> bCount)