weka.filters
Class RSReplaceMissingValues

java.lang.Object
  |
  +--weka.filters.Filter
        |
        +--weka.filters.RSReplaceMissingValues
All Implemented Interfaces:
Serializable

public class RSReplaceMissingValues
extends Filter

Replaces all missing values for nominal and numeric attributes in a dataset with the modes and means from the training data.

Version:
$Revision: 1.12 $
Author:
Eibe Frank (eibe@cs.waikato.ac.nz)
See Also:
Serialized Form

Field Summary
 
Fields inherited from class weka.filters.Filter
m_Debug, m_NewBatch
 
Constructor Summary
RSReplaceMissingValues()
           
RSReplaceMissingValues(int d)
           
 
Method Summary
 boolean batchFinished()
          Signify that this batch of input to the filter is finished.
 String debugTipText()
           
 int getDebug()
          Get the value of debug.
 boolean input(Instance instance)
          Input an instance for filtering.
static void main(String[] argv)
          Main method for testing this class.
 void setDebug(int v)
          Set the value of debug.
 boolean setInputFormat(Instances instanceInfo)
          Sets the format of the input instances.
 
Methods inherited from class weka.filters.Filter
batchFilterFile, bufferInput, copyStringValues, copyStringValues, filterFile, flushInput, getInputFormat, getInputStringIndex, getOutputFormat, getOutputStringIndex, getStringIndices, inputFormat, isOutputFormatDefined, numPendingOutput, output, outputFormat, outputFormatPeek, outputPeek, push, resetQueue, setOutputFormat, useFilter
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

RSReplaceMissingValues

public RSReplaceMissingValues()

RSReplaceMissingValues

public RSReplaceMissingValues(int d)
Method Detail

getDebug

public int getDebug()
Get the value of debug.

Returns:
value of debug.

setDebug

public void setDebug(int v)
Set the value of debug.

Parameters:
v - Value to assign to debug.

debugTipText

public String debugTipText()

setInputFormat

public boolean setInputFormat(Instances instanceInfo)
                       throws Exception
Sets the format of the input instances.

Overrides:
setInputFormat in class Filter
Parameters:
instanceInfo - an Instances object containing the input instance structure (any instances contained in the object are ignored - only the structure is required).
Returns:
true if the outputFormat may be collected immediately
Throws:
Exception - if the input format can't be set successfully

input

public boolean input(Instance instance)
Input an instance for filtering. Filter requires all training instances be read before producing output.

Overrides:
input in class Filter
Parameters:
instance - the input instance
Returns:
true if the filtered instance may now be collected with output().
Throws:
IllegalStateException - if no input format has been set.

batchFinished

public boolean batchFinished()
                      throws Exception
Signify that this batch of input to the filter is finished. If the filter requires all instances prior to filtering, output() may now be called to retrieve the filtered instances.

Overrides:
batchFinished in class Filter
Returns:
true if there are instances pending output
Throws:
IllegalStateException - if no input structure has been defined
Exception - if there was a problem finishing the batch.

main

public static void main(String[] argv)
Main method for testing this class.

Parameters:
argv - should contain arguments to the filter: use -h for help