com.cloudera.oryx.app.rdf.decision

Class Decision

java.lang.Object

com.cloudera.oryx.app.rdf.decision.Decision

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

CategoricalDecision, NumericDecision

public abstract class Decision
extends Object
implements Serializable

Subclasses represent a binary yes/no positive/negative decision based on the value of a feature in an example. This can be a numeric feature or a categorical feature.

See Also:

NumericDecision, CategoricalDecision, Serialized Form

Method Summary

Modifier and Type	Method and Description
abstract boolean	getDefaultDecision()
int	getFeatureNumber()
abstract FeatureType	getType()
abstract boolean	isPositive(Example example)
abstract String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

getFeatureNumber

public final int getFeatureNumber()

Returns:

number of the feature whose value the Decision operates on

isPositive

public abstract boolean isPositive(Example example)

Parameters:

example - example to evaluate Decision on

Returns:

true iff the Decision is positive on this example

getDefaultDecision

public abstract boolean getDefaultDecision()

Returns:

default decision -- true means positive -- when the Decision cannot be evaluated on an Example because the feature value it decides on is missing

getType

public abstract FeatureType getType()

Returns:

type of feature the Decision is over (a FeatureType)

toString

public abstract String toString()

Overrides:

toString in class Object