uk.ac.ed.inf.taweka
Class ArffProperties

java.lang.Object
  uk.ac.ed.inf.taweka.ArffProperties

All Implemented Interfaces:

Initialisation

Direct Known Subclasses:

MulanArffProperties

public class ArffProperties
extends java.lang.Object
implements Initialisation

Contains the properties for a Weka ARFF file It contains: 1. the properties read from properties file 2. the path of the properties file itself 3. the name of the arff file including a timestamp 4. (optional) some statistics for the data (number of attributes, classes, instances.

Version:

24-Mar-2007

Author:

Luna De Ferrari luna.deferrari@ed.ac.uk

Field Summary

static java.lang.String	ARFF_FILE_PATH_PROP the file path where the ARFF file will be written, inclusive of file name.
static java.lang.String	CLASS_NAME_PROP The class name.
static java.lang.String	DATA_PROPERTIES_FILE_PATH_PROP the path to the properties file itself, from which the other properties were read
static java.lang.String	DATASET_NAME_PROP the experiment short name
static java.lang.String	DESCRIPTION_PROP
static java.lang.String	INSTANCE_ATTRIBUTE_QUERY_PROP The query to get the attributes for each instance
static java.lang.String	INSTANCE_CLASS_QUERY_PROP The query to get the class value for each instance
static java.lang.String	NUMBER_OF_ATTRIBUTES the total number of possible attributes for the dataset
static java.lang.String	NUMBER_OF_CLASS_VALUES the total number of possible class values for the dataset
static int	NUMBER_OF_CORE_PROPERTIES the number of properties that should be available on the properties file (check)
static java.lang.String	NUMBER_OF_INSTANCES the number of instances (rows) in the arff file
static int	NUMBER_OF_STATISTICS_PROPERTIES the number of properties + number of data statistics (check: should be 9 + 3)
static java.lang.String	TIMESTAMP_FIELD the timestamp field

Constructor Summary

ArffProperties(java.lang.String propertiesFilePath)
Constructor loads the properties from file

Method Summary

boolean	checkPropertiesKeys(java.util.Properties props)
java.util.TreeSet<java.lang.String>	coreKeys() The core ARFF properties, essential to generate a Weka ARFF file
boolean	corePropertiesAreCorrect(java.util.Properties props)
java.lang.String	getArffFilePath() Get the path to the ARFF file
uk.ac.ed.inf.utils.database.DbConn	getDbConn()
java.util.Properties	getProperties() Get the properties
java.lang.String	getPropertiesFilePath() Get the properties file path
java.lang.String	getProperty(java.lang.String propertyName) Get a property value
boolean	initialisationIsCorrect()
boolean	propertiesAreCorrect(java.util.Properties props)
java.util.TreeSet<java.lang.String>	propertiesKeys() All properties: core + statistics
void	saveStatisticsAsProperties(java.lang.String numberOfAttributes, java.lang.String numberOfClassValues, java.lang.String numberOfInstances)
void	setInitialisation(boolean isCorrect)
java.util.TreeSet<java.lang.String>	statisticsKeys() The data statistics properties (number of attributes, classes, instances) added after the arff file generation
boolean	statsPropertiesAreCorrect(java.util.Properties props)
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

ARFF_FILE_PATH_PROP

public static final java.lang.String ARFF_FILE_PATH_PROP

the file path where the ARFF file will be written, inclusive of file name. A timestamp and the .arff ending will be added automatically.

See Also:

Constant Field Values

CLASS_NAME_PROP

public static final java.lang.String CLASS_NAME_PROP

The class name. Examples, for a medical prediction: has_disease.

See Also:

Constant Field Values

DATA_PROPERTIES_FILE_PATH_PROP

public static final java.lang.String DATA_PROPERTIES_FILE_PATH_PROP

the path to the properties file itself, from which the other properties were read

See Also:

Constant Field Values

DATASET_NAME_PROP

public static final java.lang.String DATASET_NAME_PROP

the experiment short name

See Also:

Constant Field Values

DESCRIPTION_PROP

public static final java.lang.String DESCRIPTION_PROP

See Also:

Constant Field Values

INSTANCE_ATTRIBUTE_QUERY_PROP

public static final java.lang.String INSTANCE_ATTRIBUTE_QUERY_PROP

The query to get the attributes for each instance

See Also:

Constant Field Values

INSTANCE_CLASS_QUERY_PROP

public static final java.lang.String INSTANCE_CLASS_QUERY_PROP

The query to get the class value for each instance

See Also:

Constant Field Values

NUMBER_OF_ATTRIBUTES

public static final java.lang.String NUMBER_OF_ATTRIBUTES

the total number of possible attributes for the dataset

See Also:

Constant Field Values

NUMBER_OF_CLASS_VALUES

public static final java.lang.String NUMBER_OF_CLASS_VALUES

the total number of possible class values for the dataset

See Also:

Constant Field Values

NUMBER_OF_INSTANCES

public static final java.lang.String NUMBER_OF_INSTANCES

the number of instances (rows) in the arff file

See Also:

Constant Field Values

NUMBER_OF_CORE_PROPERTIES

public static final int NUMBER_OF_CORE_PROPERTIES

the number of properties that should be available on the properties file (check)

See Also:

Constant Field Values

NUMBER_OF_STATISTICS_PROPERTIES

public static final int NUMBER_OF_STATISTICS_PROPERTIES

the number of properties + number of data statistics (check: should be 9 + 3)

See Also:

Constant Field Values

TIMESTAMP_FIELD

public static final java.lang.String TIMESTAMP_FIELD

the timestamp field

See Also:

Constant Field Values

Constructor Detail

ArffProperties

public ArffProperties(java.lang.String propertiesFilePath)

Constructor loads the properties from file

Parameters:

propertiesFilePath - the path to the properties file e.g. /home/me/myexperiment.props

Method Detail

getArffFilePath

public java.lang.String getArffFilePath()

Get the path to the ARFF file

Returns:

the path to the ARFF file

getDbConn

public uk.ac.ed.inf.utils.database.DbConn getDbConn()

getProperties

public java.util.Properties getProperties()

Get the properties

getPropertiesFilePath

public java.lang.String getPropertiesFilePath()

Get the properties file path

getProperty

public java.lang.String getProperty(java.lang.String propertyName)

Get a property value

Parameters:

propertyName - the name of the property (key)

Returns:

the associated property value

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

saveStatisticsAsProperties

public void saveStatisticsAsProperties(java.lang.String numberOfAttributes,
                                       java.lang.String numberOfClassValues,
                                       java.lang.String numberOfInstances)

propertiesKeys

public java.util.TreeSet<java.lang.String> propertiesKeys()

All properties: core + statistics

Returns:

coreKeys

public java.util.TreeSet<java.lang.String> coreKeys()

The core ARFF properties, essential to generate a Weka ARFF file

Returns:

statisticsKeys

public java.util.TreeSet<java.lang.String> statisticsKeys()

The data statistics properties (number of attributes, classes, instances) added after the arff file generation

Returns:

checkPropertiesKeys

public boolean checkPropertiesKeys(java.util.Properties props)

propertiesAreCorrect

public boolean propertiesAreCorrect(java.util.Properties props)

corePropertiesAreCorrect

public boolean corePropertiesAreCorrect(java.util.Properties props)

statsPropertiesAreCorrect

public boolean statsPropertiesAreCorrect(java.util.Properties props)

initialisationIsCorrect

public boolean initialisationIsCorrect()

Specified by:

initialisationIsCorrect in interface Initialisation

setInitialisation

public void setInitialisation(boolean isCorrect)

Specified by:

setInitialisation in interface Initialisation