rocca

Enum RoccaContourDataBlock.PosSweepIndx

java.lang.Object

java.lang.Enum<RoccaContourDataBlock.PosSweepIndx>

rocca.RoccaContourDataBlock.PosSweepIndx

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<RoccaContourDataBlock.PosSweepIndx>

Enclosing class:

RoccaContourDataBlock

public static enum RoccaContourDataBlock.PosSweepIndx
extends java.lang.Enum<RoccaContourDataBlock.PosSweepIndx>

A field mapping the sweep direction to the nominal index used to train the classifier

The WEKA random forest classifier code stores all attributes as double values. For nominal attributes, WEKA assumes that the stored value refers to the INDEX of the corresponding value. For example, the FREQBEGUP attribute can be true (yes, the slope is positive) or false (no, the slope is not positive). The training dataset uses the values "0" to indicate false, and "1" to indicate true. When the classifier is created, it stores these nominal values in an array of length 2, with array index 0 being 0 (false), and index 1 being 1 (true). When an instance gets passed to the classifier for classification, it assumes that the value stored in the attribute refers to the index position (0 or 1), NOT the actual nominal value (0/false or 1/true). So this enum field is used to map the nominal false-true values to the corresponding array indices used to train the classifier.

IMPORTANT NOTE:

Right now, this doesn't matter because the potential values 0 and 1 coincidentally match the array indices 0 and 1. But if the order or potential values of the nominal attribute ever change, this enum MUST CHANGE TO MATCH. For example, if false-true are ever reordered in the training set to true-false, the SweepIndx enum needs to be changed to true=0 and false=1. Similarly, if 'maybe' is added to the list as false-maybe-true (using the values -1, 0, and 1 respectively), SweepIndx needs to be changed to false=0, maybe=1 and true=2.

Enum Constant Summary

Enum Constants

Enum Constant and Description
FALSE
TRUE

Method Summary

Methods

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

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

FALSE

public static final RoccaContourDataBlock.PosSweepIndx FALSE

TRUE

public static final RoccaContourDataBlock.PosSweepIndx TRUE

Method Detail

values

public static RoccaContourDataBlock.PosSweepIndx[] 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 (RoccaContourDataBlock.PosSweepIndx c : RoccaContourDataBlock.PosSweepIndx.values())
    System.out.println(c);

Returns:

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

valueOf

public static RoccaContourDataBlock.PosSweepIndx valueOf(java.lang.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:

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

java.lang.NullPointerException - if the argument is null

getIndx

public int getIndx()