Package weka.core.xml

Class XMLInstances

java.lang.Object

weka.core.xml.XMLDocument

weka.core.xml.XMLInstances

All Implemented Interfaces:

Serializable, RevisionHandler

public class XMLInstances
extends XMLDocument
implements Serializable

XML representation of the Instances class.

Version:

$Revision: 10203 $

Author:

fracpete (fracpete at waikato dot ac dot nz)

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ATT_CLASS	the class attribute
static final String	ATT_FORMAT	the format attribute (for date attributes)
static final String	ATT_INDEX	the index attribute
static final String	ATT_MISSING	the missing attribute
static final String	ATT_TYPE	the type attribute
static final String	ATT_VERSION	the version attribute
static final String	ATT_WEIGHT	the weight attribute
static final String	DOCTYPE	the DTD
static String	FILE_EXTENSION	The filename extension that should be used for xrff files
static final String	TAG_ATTRIBUTE	the attribute element
static final String	TAG_ATTRIBUTES	the attributes element
static final String	TAG_BODY	the body element
static final String	TAG_DATASET	the root element
static final String	TAG_HEADER	the header element
static final String	TAG_INSTANCE	the instance element
static final String	TAG_INSTANCES	the data element
static final String	TAG_LABEL	the label element
static final String	TAG_LABELS	the labels element
static final String	TAG_METADATA	the meta-data element
static final String	TAG_NOTES	the notes element
static final String	TAG_PROPERTY	the property element
static final String	TAG_VALUE	the value element
static final String	VAL_DATE	the value for date
static final String	VAL_NOMINAL	the value for nominal
static final String	VAL_NORMAL	the value for normal
static final String	VAL_NUMERIC	the value for numeric
static final String	VAL_RELATIONAL	the value for relational
static final String	VAL_SPARSE	the value for sparse
static final String	VAL_STRING	the value for string

Fields inherited from class weka.core.xml.XMLDocument

ATT_NAME, DTD_ANY, DTD_AT_LEAST_ONE, DTD_ATTLIST, DTD_CDATA, DTD_DOCTYPE, DTD_ELEMENT, DTD_IMPLIED, DTD_OPTIONAL, DTD_PCDATA, DTD_REQUIRED, DTD_SEPARATOR, DTD_ZERO_OR_MORE, PI, VAL_NO, VAL_YES

Constructor Summary

Constructors

Constructor	Description
XMLInstances()	the default constructor
XMLInstances(Reader reader)	generates the Instances directly from the reader containing the XML data.
XMLInstances(Instances data)	generates the XML structure based on the given data

Method Summary

Modifier and Type	Method	Description
Instances	getInstances()	returns the current instances, either the ones that were set or the ones that were generated from the XML structure.
String	getRevision()	Returns the revision string.
static void	main(String[] args)	takes an XML document as first argument and then outputs the Instances statistics
void	setInstances(Instances data)	builds up the XML structure based on the given data
void	setXML(Reader reader)	reads the XML structure from the given reader

Methods inherited from class weka.core.xml.XMLDocument

clear, evalBoolean, evalDouble, evalString, findNodes, getBuilder, getChildTags, getChildTags, getContent, getDocType, getDocument, getFactory, getNode, getRootNode, getValidating, newDocument, print, read, read, read, read, setDocType, setDocument, setRootNode, setValidating, toString, write, write, write, write

Methods inherited from class java.lang.Object

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

Field Details

FILE_EXTENSION

public static String FILE_EXTENSION

The filename extension that should be used for xrff files

TAG_DATASET

public static final String TAG_DATASET

the root element

See Also:

• Constant Field Values

TAG_HEADER

public static final String TAG_HEADER

the header element

See Also:

• Constant Field Values

TAG_BODY

public static final String TAG_BODY

the body element

See Also:

• Constant Field Values

TAG_NOTES

public static final String TAG_NOTES

the notes element

See Also:

• Constant Field Values

TAG_ATTRIBUTES

public static final String TAG_ATTRIBUTES

the attributes element

See Also:

• Constant Field Values

TAG_ATTRIBUTE

public static final String TAG_ATTRIBUTE

the attribute element

See Also:

• Constant Field Values

TAG_LABELS

public static final String TAG_LABELS

the labels element

See Also:

• Constant Field Values

TAG_LABEL

public static final String TAG_LABEL

the label element

See Also:

• Constant Field Values

TAG_METADATA

public static final String TAG_METADATA

the meta-data element

See Also:

• Constant Field Values

TAG_PROPERTY

public static final String TAG_PROPERTY

the property element

See Also:

• Constant Field Values

TAG_INSTANCES

public static final String TAG_INSTANCES

the data element

See Also:

• Constant Field Values

TAG_INSTANCE

public static final String TAG_INSTANCE

the instance element

See Also:

• Constant Field Values

TAG_VALUE

public static final String TAG_VALUE

the value element

See Also:

• Constant Field Values

ATT_VERSION

public static final String ATT_VERSION

the version attribute

See Also:

• Constant Field Values

ATT_TYPE

public static final String ATT_TYPE

the type attribute

See Also:

• Constant Field Values

ATT_FORMAT

public static final String ATT_FORMAT

the format attribute (for date attributes)

See Also:

• Constant Field Values

ATT_CLASS

public static final String ATT_CLASS

the class attribute

See Also:

• Constant Field Values

ATT_INDEX

public static final String ATT_INDEX

the index attribute

See Also:

• Constant Field Values

ATT_WEIGHT

public static final String ATT_WEIGHT

the weight attribute

See Also:

• Constant Field Values

ATT_MISSING

public static final String ATT_MISSING

the missing attribute

See Also:

• Constant Field Values

VAL_NUMERIC

public static final String VAL_NUMERIC

the value for numeric

See Also:

• Constant Field Values

VAL_DATE

public static final String VAL_DATE

the value for date

See Also:

• Constant Field Values

VAL_NOMINAL

public static final String VAL_NOMINAL

the value for nominal

See Also:

• Constant Field Values

VAL_STRING

public static final String VAL_STRING

the value for string

See Also:

• Constant Field Values

VAL_RELATIONAL

public static final String VAL_RELATIONAL

the value for relational

See Also:

• Constant Field Values

VAL_NORMAL

public static final String VAL_NORMAL

the value for normal

See Also:

• Constant Field Values

VAL_SPARSE

public static final String VAL_SPARSE

the value for sparse

See Also:

• Constant Field Values

DOCTYPE

public static final String DOCTYPE

the DTD

Constructor Details

XMLInstances

public XMLInstances()
             throws Exception

the default constructor

Throws:

Exception - if XML initialization fails

XMLInstances

public XMLInstances(Instances data)
             throws Exception

generates the XML structure based on the given data

Parameters:

data - the data to build the XML structure from

Throws:

Exception - if initialization/generation fails

XMLInstances

public XMLInstances(Reader reader)
             throws Exception

generates the Instances directly from the reader containing the XML data.

Parameters:

reader - the reader for the XML data

Throws:

Exception - if something goes wrong

Method Details

setInstances

public void setInstances(Instances data)

builds up the XML structure based on the given data

Parameters:

data - data to generate the XML from

getInstances

public Instances getInstances()

returns the current instances, either the ones that were set or the ones that were generated from the XML structure.

Returns:

the current instances

setXML

public void setXML(Reader reader)
            throws Exception

reads the XML structure from the given reader

Parameters:

reader - the reader to get the XML from

Throws:

Exception - if

getRevision

public String getRevision()

Returns the revision string.

Specified by:

getRevision in interface RevisionHandler

Overrides:

getRevision in class XMLDocument

Returns:

the revision

main

public static void main(String[] args)

takes an XML document as first argument and then outputs the Instances statistics

Parameters:

args - the commandline options