weka.filters.unsupervised.instance
Class NonSparseToSparse
java.lang.Object
weka.filters.Filter
weka.filters.unsupervised.instance.NonSparseToSparse
- All Implemented Interfaces:
- java.io.Serializable, StreamableFilter, UnsupervisedFilter
- public class NonSparseToSparse
- extends Filter
- implements UnsupervisedFilter, StreamableFilter
A filter that converts all incoming instances into sparse format.
- Version:
- $Revision: 1.1 $
- Author:
- Eibe Frank (eibe@cs.waikato.ac.nz)
- See Also:
- Serialized Form
Method Summary |
java.lang.String |
globalInfo()
Returns a string describing this filter |
boolean |
input(Instance instance)
Input an instance for filtering. |
static void |
main(java.lang.String[] argv)
Main method for testing this class. |
boolean |
setInputFormat(Instances instanceInfo)
Sets the format of the input instances. |
Methods inherited from class weka.filters.Filter |
batchFilterFile, batchFinished, bufferInput, copyStringValues, copyStringValues, filterFile, flushInput, getInputFormat, getInputStringIndex, getOutputFormat, getOutputStringIndex, getStringIndices, inputFormat, inputFormatPeek, 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 |
NonSparseToSparse
public NonSparseToSparse()
globalInfo
public java.lang.String globalInfo()
- Returns a string describing this filter
- Returns:
- a description of the filter suitable for
displaying in the explorer/experimenter gui
setInputFormat
public boolean setInputFormat(Instances instanceInfo)
throws java.lang.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:
java.lang.Exception
- if the inputFormat can't be set successfully
input
public boolean input(Instance instance)
- Input an instance for filtering. Ordinarily the instance is processed
and made available for output immediately. Some filters require all
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:
java.lang.IllegalStateException
- if no input format has been set.
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