milk.experiment
Class MIInstancesResultListener

java.lang.Object
  |
  +--milk.experiment.MICSVResultListener
        |
        +--milk.experiment.MIInstancesResultListener

All Implemented Interfaces:

MIResultListener, weka.core.OptionHandler, java.io.Serializable

public class MIInstancesResultListener

extends MICSVResultListener

InstancesResultListener outputs the received results in arff format to a Writer. All results must be received before the instances can be written out.

See Also:

Serialized Form

Field Summary

protected int[]	m_AttributeTypes Stores the attribute types for each column
protected weka.core.FastVector	m_Instances Stores the instances created so far, before assigning to a header
protected java.util.Hashtable[]	m_NominalIndexes For lookup of indices given a string value for each nominal attribute
protected weka.core.FastVector[]	m_NominalStrings Contains strings seen so far for each nominal attribute

Fields inherited from class milk.experiment.MICSVResultListener

m_Out, m_OutputFile, m_RP

Constructor Summary

MIInstancesResultListener()

Method Summary

void	acceptResult(MIResultProducer rp, java.lang.Object[] key, java.lang.Object[] result) Collects each instance and adjusts the header information.
java.lang.String	globalInfo() Returns a string describing this result listener
void	postProcess(MIResultProducer rp) Perform any postprocessing.
void	preProcess(MIResultProducer rp) Prepare for the results to be received.

Methods inherited from class milk.experiment.MICSVResultListener

determineColumnConstraints, getOptions, getOutputFile, isResultRequired, listOptions, outputFileTipText, setOptions, setOutputFile

Methods inherited from class java.lang.Object

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

Field Detail

m_Instances

protected transient weka.core.FastVector m_Instances

Stores the instances created so far, before assigning to a header

m_AttributeTypes

protected transient int[] m_AttributeTypes

Stores the attribute types for each column

m_NominalIndexes

protected transient java.util.Hashtable[] m_NominalIndexes

For lookup of indices given a string value for each nominal attribute

m_NominalStrings

protected transient weka.core.FastVector[] m_NominalStrings

Contains strings seen so far for each nominal attribute

Constructor Detail

MIInstancesResultListener

public MIInstancesResultListener()

Method Detail

globalInfo

public java.lang.String globalInfo()

Returns a string describing this result listener

Overrides:

globalInfo in class MICSVResultListener

Returns:

a description of the result listener suitable for displaying in the explorer/experimenter gui

preProcess

public void preProcess(MIResultProducer rp)
                throws java.lang.Exception

Prepare for the results to be received.

Specified by:

preProcess in interface MIResultListener

Overrides:

preProcess in class MICSVResultListener

Parameters:

rp - the ResultProducer that will generate the results

Throws:

java.lang.Exception - if an error occurs during preprocessing.

postProcess

public void postProcess(MIResultProducer rp)
                 throws java.lang.Exception

Perform any postprocessing. When this method is called, it indicates that no more results will be sent that need to be grouped together in any way.

Specified by:

postProcess in interface MIResultListener

Overrides:

postProcess in class MICSVResultListener

Parameters:

rp - the ResultProducer that generated the results

Throws:

java.lang.Exception - if an error occurs

acceptResult

public void acceptResult(MIResultProducer rp,
                         java.lang.Object[] key,
                         java.lang.Object[] result)
                  throws java.lang.Exception

Collects each instance and adjusts the header information.

Specified by:

acceptResult in interface MIResultListener

Overrides:

acceptResult in class MICSVResultListener

Parameters:

rp - the ResultProducer that generated the result

key - The key for the results.

result - The actual results.

Throws:

java.lang.Exception - if the result could not be accepted.