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Class weka.filters.ReplaceMissingValuesFilter
java.lang.Object
|
+----weka.filters.Filter
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+----weka.filters.ReplaceMissingValuesFilter
- public class ReplaceMissingValuesFilter
- 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)
ReplaceMissingValuesFilter()
-
batchFinished()
- Signify that this batch of input to the filter is finished.
input(Instance)
- Input an instance for filtering.
main(String[])
- Main method for testing this class.
setInputFormat(Instances)
- Sets the format of the input instances.
ReplaceMissingValuesFilter
public ReplaceMissingValuesFilter()
setInputFormat
public boolean setInputFormat(Instances instanceInfo) throws java.lang.Exception
Sets the format of the input instances.
- 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:
- java.lang.Exception - if the input format can't be set
successfully
- Overrides:
- setInputFormat in class Filter
input
public boolean input(Instance instance)
Input an instance for filtering. Filter requires all
training instances be read before producing output.
- Parameters:
instance
- the input instance
- Returns:
- true if the filtered instance may now be
collected with output().
- Throws:
- java.lang.IllegalStateException - if no input format has been set.
- Overrides:
- input in class Filter
batchFinished
public boolean batchFinished()
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.
- Returns:
- true if there are instances pending output
- Throws:
- java.lang.IllegalStateException - if no input structure has been defined
- Overrides:
- batchFinished in class Filter
main
public static void main(java.lang.String argv[])
Main method for testing this class.
- Parameters:
argv
- should contain arguments to the filter:
use -h for help
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