net.librec.data.model

Class ArffInstance

java.lang.Object

net.librec.data.model.ArffInstance

public class ArffInstance
extends java.lang.Object

A ArffInstance represents an instance of ARFF format input.

Author:

WangYuFeng TangJiaxi and Ma Chen

Field Summary

Fields

Modifier and Type	Field and Description
static java.util.ArrayList<ArffAttribute>	attrs Attributes of the instance

Constructor Summary

Constructors

Constructor and Description
ArffInstance(java.util.ArrayList<java.lang.String> instanceData) Initializes a newly created ArffInstance object with instance data.

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.String	getTypeByIndex(int idx) Get attribute type by index.
java.lang.Object	getValueByAttrName(java.lang.String attrName) Get data value by the attribute name.
java.lang.Object	getValueByIndex(int idx) Get data value by index.

Methods inherited from class java.lang.Object

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

Field Detail

attrs

public static java.util.ArrayList<ArffAttribute> attrs

Attributes of the instance

Constructor Detail

ArffInstance

public ArffInstance(java.util.ArrayList<java.lang.String> instanceData)

Initializes a newly created ArffInstance object with instance data.

Parameters:

instanceData - data of the instance

Method Detail

getValueByAttrName

public java.lang.Object getValueByAttrName(java.lang.String attrName)
                                    throws LibrecException

Get data value by the attribute name.

Parameters:

attrName - name of the attribute

Returns:

data value

Throws:

LibrecException - if attrName is invalid

getValueByIndex

public java.lang.Object getValueByIndex(int idx)

Get data value by index.

Parameters:

idx - index of the data.

Returns:

data value

getTypeByIndex

public java.lang.String getTypeByIndex(int idx)

Get attribute type by index.

Parameters:

idx - index of the attribute

Returns:

attribute type