jbnc.dataset
Class Dataset

java.lang.Object
  jbnc.dataset.Dataset

Direct Known Subclasses:

DatasetInt

public class Dataset

extends java.lang.Object

Represents a data set.

Since:

June 1, 1999

Author:

Jarek Sacha

See Also:

NamesReader, DatasetReader

Field Summary

java.util.Vector	cases Vector of vectors representing cases.
protected boolean	discardIncompleteCases LOCAL
AttributeSpecs[]	names Description of each of the attributes in a case.

Constructor Summary

Dataset()
Set everything to null .

Method Summary

void	clear()
java.lang.Object	clone() Performs a shallow copy of itself.
void	discardAllOfType(AttributeType type) Discards all attributes that match the given type.
boolean	getDiscardIncompleteCases()
void	openC45(java.lang.String fileStem)
void	openC45(java.lang.String namesFile, java.lang.String dataFile)
void	saveC45(java.lang.String fileStem)
void	saveC45(java.lang.String namesFile, java.lang.String dataFile)
void	saveCasesC45(java.lang.String fileName)
void	saveNamesC45(java.lang.String fileName)
void	setDiscardIncompleteCases(boolean discardIncompleteCases)

Methods inherited from class java.lang.Object

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

Field Detail

cases

public java.util.Vector cases

Vector of vectors representing cases. Each case attribute is allocated in type defined by 'names'.

names

public AttributeSpecs[] names

Description of each of the attributes in a case. Typically the last attribute in a case represent the class this case belongs to.

discardIncompleteCases

protected boolean discardIncompleteCases

LOCAL

Constructor Detail

Dataset

public Dataset()

Set everything to null .

Method Detail

setDiscardIncompleteCases

public void setDiscardIncompleteCases(boolean discardIncompleteCases)

Parameters:

discardIncompleteCases -

getDiscardIncompleteCases

public boolean getDiscardIncompleteCases()

Returns:

discardIncompleteCases

openC45

public void openC45(java.lang.String fileStem)
             throws java.lang.Exception

Parameters:

fileStem -

Throws:

java.lang.Exception

openC45

public void openC45(java.lang.String namesFile,
                    java.lang.String dataFile)
             throws java.lang.Exception

Parameters:

namesFile -

dataFile -

Throws:

java.lang.Exception

saveC45

public void saveC45(java.lang.String fileStem)
             throws java.lang.Exception

Parameters:

fileStem -

Throws:

java.lang.Exception

saveC45

public void saveC45(java.lang.String namesFile,
                    java.lang.String dataFile)
             throws java.lang.Exception

Parameters:

namesFile -

dataFile -

Throws:

java.lang.Exception

saveCasesC45

public void saveCasesC45(java.lang.String fileName)
                  throws java.lang.Exception

Parameters:

fileName -

Throws:

java.lang.Exception

saveNamesC45

public void saveNamesC45(java.lang.String fileName)
                  throws java.lang.Exception

Parameters:

fileName -

Throws:

java.lang.Exception

clear

public void clear()

discardAllOfType

public void discardAllOfType(AttributeType type)

Discards all attributes that match the given type. Removes columns from the data set and entries from the names vector.

Parameters:

type - Type of attributes to be discarded.

clone

public java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException

Performs a shallow copy of itself. Member variables in the clone dataset are references to variables in the parent dataset. Only primitive types members, like boolean, are actually copied.

Returns:

a clone of this dataset.

Throws:

java.lang.CloneNotSupportedException