org.encog.ml.data.versatile.columns

Enum ColumnType

java.lang.Object

java.lang.Enum<ColumnType>

org.encog.ml.data.versatile.columns.ColumnType

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<ColumnType>

public enum ColumnType
extends java.lang.Enum<ColumnType>

The type of column, defined using level of measurement. http://en.wikipedia.org/wiki/Level_of_measurement

Enum Constant Summary

Enum Constants

Enum Constant and Description
continuous A continuous (non-discrete) value is simply floating point numeric.
ignore This field is ignored.
nominal A discrete nominal, or categorical, value specifies class membership.
ordinal A discrete ordinal specifies a non-numeric value that has a specific ordering.

Method Summary

Modifier and Type	Method and Description
static ColumnType	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static ColumnType[]	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

nominal

public static final ColumnType nominal

A discrete nominal, or categorical, value specifies class membership. For example, US states. There is a fixed number, yet no obvious, meaningful ordering.

ordinal

public static final ColumnType ordinal

A discrete ordinal specifies a non-numeric value that has a specific ordering. For example, the months of the year are inherently non-numerical, yet has a specific ordering.

continuous

public static final ColumnType continuous

A continuous (non-discrete) value is simply floating point numeric. These values are orderable and dense.

ignore

public static final ColumnType ignore

This field is ignored.

Method Detail

values

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

Returns:

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

valueOf

public static ColumnType 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