com.pervasive.datarush.analytics.decisiontree

Enum PMMLTreeModel.MissingValueStrategy

java.lang.Object

java.lang.Enum<PMMLTreeModel.MissingValueStrategy>

com.pervasive.datarush.analytics.decisiontree.PMMLTreeModel.MissingValueStrategy

All Implemented Interfaces:

Serializable, Comparable<PMMLTreeModel.MissingValueStrategy>

Enclosing class:

PMMLTreeModel

public static enum PMMLTreeModel.MissingValueStrategy
extends Enum<PMMLTreeModel.MissingValueStrategy>

Corresponds to the PMML MISSING-VALUE-STRATEGY enumeration.

See Also:

TreeModel missing value strategies

Enum Constant Summary

Enum Constants

Enum Constant and Description
aggregateNodes If a Node's predicate value evaluates to UNKNOWN while traversing the tree, we consider evaluation of the Node's predicate being TRUE and follow this Node.
defaultChild If a Node's predicate value evaluates to UNKNOWN while traversing the tree, evaluate the attribute defaultChild which gives the child to continue traversing with.
lastPrediction If a Node's predicate evaluates to UNKNOWN while traversing the tree, evaluation is stopped and the current winner is returned as the final prediction
none Comparisons with missing values other than checks for missing values always evaluate to FALSE.
nullPrediction If a Node's predicate value evaluates to UNKNOWN while traversing the tree, abort the scoring process and give no prediction.
weightedConfidence If a Node's predicate value evaluates to UNKNOWN while traversing the tree, the confidences for each class is calculated from scoring it and each of its sibling Nodes in turn (excluding any siblings whose predicates evaluate to FALSE).

Method Summary

Modifier and Type	Method and Description
static PMMLTreeModel.MissingValueStrategy	valueOf(String name) Returns the enum constant of this type with the specified name.
static PMMLTreeModel.MissingValueStrategy[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

lastPrediction

public static final PMMLTreeModel.MissingValueStrategy lastPrediction

If a Node's predicate evaluates to UNKNOWN while traversing the tree, evaluation is stopped and the current winner is returned as the final prediction

nullPrediction

public static final PMMLTreeModel.MissingValueStrategy nullPrediction

If a Node's predicate value evaluates to UNKNOWN while traversing the tree, abort the scoring process and give no prediction.

defaultChild

public static final PMMLTreeModel.MissingValueStrategy defaultChild

If a Node's predicate value evaluates to UNKNOWN while traversing the tree, evaluate the attribute defaultChild which gives the child to continue traversing with.

weightedConfidence

public static final PMMLTreeModel.MissingValueStrategy weightedConfidence

If a Node's predicate value evaluates to UNKNOWN while traversing the tree, the confidences for each class is calculated from scoring it and each of its sibling Nodes in turn (excluding any siblings whose predicates evaluate to FALSE).

aggregateNodes

public static final PMMLTreeModel.MissingValueStrategy aggregateNodes

If a Node's predicate value evaluates to UNKNOWN while traversing the tree, we consider evaluation of the Node's predicate being TRUE and follow this Node.

none

public static final PMMLTreeModel.MissingValueStrategy none

Comparisons with missing values other than checks for missing values always evaluate to FALSE.

Method Detail

values

public static PMMLTreeModel.MissingValueStrategy[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (PMMLTreeModel.MissingValueStrategy c : PMMLTreeModel.MissingValueStrategy.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static PMMLTreeModel.MissingValueStrategy valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null