hex

Class Model.InteractionPair

java.lang.Object

water.Iced

hex.Model.InteractionPair

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Cloneable, Freezable

Enclosing class:

Model<M extends Model<M,P,O>,P extends Model.Parameters,O extends Model.Output>

public static class Model.InteractionPair
extends Iced

This class represents a pair of interacting columns plus some additional data about specific enums to be interacted when the vecs are categorical. The question naturally arises why not just use something like an ArrayList of int[2] (as is done, for example, in the Interaction/CreateInteraction classes) and the answer essentially boils down a desire to specify these specific levels. Another difference with the CreateInteractions class: 1. do not interact on NA (someLvl_NA and NA_somLvl are actual NAs) this does not appear here, but in the InteractionWrappedVec class TODO: refactor the CreateInteractions to be useful here and in InteractionWrappedVec

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
int	vecIdx

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o)
static Model.InteractionPair[]	generatePairwiseInteractions(int from, int to) Generate all pairwise combinations of ints in the range [from,to).
static Model.InteractionPair[]	generatePairwiseInteractionsFromList(int... indexes) Generate all pairwise combinations of the arguments.
int	hashCode()
static int	isInteraction(int i, Model.InteractionPair[] ips) Check to see if any of the vecIdx values is the desired value.
static Model.InteractionPair[]	read(java.lang.String interaction)
void	setDomain(java.lang.String[] dom) Set the domain; computed in an MRTask over the two categorical vectors that make up this interaction pair
java.lang.String	toString()

Methods inherited from class water.Iced

asBytes, clone, copyOver, frozenType, read, readExternal, readJSON, reloadFromBytes, toJsonString, write, writeExternal, writeJSON

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

vecIdx

public int vecIdx

Method Detail

generatePairwiseInteractions

public static Model.InteractionPair[] generatePairwiseInteractions(int from,
                                                   int to)

Generate all pairwise combinations of ints in the range [from,to).

Parameters:

from - Start index

to - End index (exclusive)

Returns:

An array of interaction pairs.

generatePairwiseInteractionsFromList

public static Model.InteractionPair[] generatePairwiseInteractionsFromList(int... indexes)

Generate all pairwise combinations of the arguments.

Parameters:

indexes - An array of column indices.

Returns:

An array of interaction pairs

setDomain

public void setDomain(java.lang.String[] dom)

Set the domain; computed in an MRTask over the two categorical vectors that make up this interaction pair

Parameters:

dom - The domain retrieved by the CombineDomainTask in InteractionWrappedVec

isInteraction

public static int isInteraction(int i,
                Model.InteractionPair[] ips)

Check to see if any of the vecIdx values is the desired value.

read

public static Model.InteractionPair[] read(java.lang.String interaction)

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object