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java.lang.Objectweka.filters.Filter
weka.filters.unsupervised.attribute.MakeIndicator
public class MakeIndicator
A filter that creates a new dataset with a boolean attribute replacing a nominal attribute. In the new dataset, a value of 1 is assigned to an instance that exhibits a particular range of attribute values, a 0 to an instance that doesn't. The boolean attribute is coded as numeric by default.
Valid options are:-C <col> Sets the attribute index.
-V <index1,index2-index4,...> Specify the list of values to indicate. First and last are valid indexes (default last)
-N <index> Set if new boolean attribute nominal.
Constructor Summary | |
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MakeIndicator()
Constructor |
Method Summary | |
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java.lang.String |
attributeIndexTipText()
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java.lang.String |
getAttributeIndex()
Get the index of the attribute used. |
Capabilities |
getCapabilities()
Returns the Capabilities of this filter. |
boolean |
getNumeric()
Check if new attribute is to be numeric. |
java.lang.String[] |
getOptions()
Gets the current settings of the filter. |
java.lang.String |
getRevision()
Returns the revision string. |
java.lang.String |
getValueIndices()
Get the indices of the indicator values. |
Range |
getValueRange()
Get the range containing the indicator values. |
java.lang.String |
globalInfo()
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boolean |
input(Instance instance)
Input an instance for filtering. |
java.util.Enumeration |
listOptions()
Returns an enumeration describing the available options. |
static void |
main(java.lang.String[] argv)
Main method for testing this class. |
java.lang.String |
numericTipText()
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void |
setAttributeIndex(java.lang.String attIndex)
Sets index of the attribute used. |
boolean |
setInputFormat(Instances instanceInfo)
Sets the format of the input instances. |
void |
setNumeric(boolean bool)
Sets if the new Attribute is to be numeric. |
void |
setOptions(java.lang.String[] options)
Parses a given list of options. |
void |
setValueIndex(int index)
Sets index of the indicator value. |
void |
setValueIndices(java.lang.String range)
Sets indices of the indicator values. |
void |
setValueIndicesArray(int[] indices)
Set which attributes are to be deleted (or kept if invert is true) |
java.lang.String |
valueIndicesTipText()
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Methods inherited from class weka.filters.Filter |
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batchFilterFile, batchFinished, filterFile, getCapabilities, getOutputFormat, isFirstBatchDone, isNewBatch, isOutputFormatDefined, makeCopies, makeCopy, numPendingOutput, output, outputPeek, toString, useFilter, wekaStaticWrapper |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public MakeIndicator()
Method Detail |
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public Capabilities getCapabilities()
getCapabilities
in interface CapabilitiesHandler
getCapabilities
in class Filter
Capabilities
public boolean setInputFormat(Instances instanceInfo) throws java.lang.Exception
setInputFormat
in class Filter
instanceInfo
- an Instances object containing the input
instance structure (any instances contained in the object are
ignored - only the structure is required).
UnsupportedAttributeTypeException
- the selecte attribute is not nominal
UnsupportedAttributeTypeException
- the selecte attribute has fewer than two values.
java.lang.Exception
- if the inputFormat can't be set successfullypublic boolean input(Instance instance)
input
in class Filter
instance
- the input instance
java.lang.IllegalStateException
- if no input format has been set.public java.util.Enumeration listOptions()
listOptions
in interface OptionHandler
public void setOptions(java.lang.String[] options) throws java.lang.Exception
-C <col> Sets the attribute index.
-V <index1,index2-index4,...> Specify the list of values to indicate. First and last are valid indexes (default last)
-N <index> Set if new boolean attribute nominal.
setOptions
in interface OptionHandler
options
- the list of options as an array of strings
java.lang.Exception
- if an option is not supportedpublic java.lang.String[] getOptions()
getOptions
in interface OptionHandler
public java.lang.String globalInfo()
public java.lang.String attributeIndexTipText()
public java.lang.String getAttributeIndex()
public void setAttributeIndex(java.lang.String attIndex)
attIndex
- the index of the attributepublic Range getValueRange()
public java.lang.String valueIndicesTipText()
public java.lang.String getValueIndices()
public void setValueIndices(java.lang.String range)
range
- the string representation of the indicator value indicesRange
public void setValueIndex(int index)
index
- the index of the indicator valuepublic void setValueIndicesArray(int[] indices)
indices
- an array containing indexes of attributes to select.
Since the array will typically come from a program, attributes are indexed
from 0.
InvalidArgumentException
- if an invalid set of ranges is suppliedpublic java.lang.String numericTipText()
public void setNumeric(boolean bool)
bool
- true if new Attribute is to be numericpublic boolean getNumeric()
public java.lang.String getRevision()
getRevision
in interface RevisionHandler
getRevision
in class Filter
public static void main(java.lang.String[] argv)
argv
- should contain arguments to the filter:
use -h for help
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