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java.lang.Objectweka.filters.Filter
weka.filters.unsupervised.attribute.Add
An instance filter that adds a new attribute to the dataset. The new attribute contains all missing values.
Valid filter-specific options are:
-C index
Specify where to insert the column. First and last are valid indexes.
(default last)
-L label1,label2,...
Create nominal attribute with the given labels
(default numeric attribute)
-N name
Name of the new attribute. (default = 'Unnamed')
| Constructor Summary | |
Add()
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| Method Summary | |
java.lang.String |
attributeIndexTipText()
Returns the tip text for this property |
java.lang.String |
attributeNameTipText()
Returns the tip text for this property |
java.lang.String |
getAttributeIndex()
Get the index of the attribute used. |
java.lang.String |
getAttributeName()
Get the name of the attribute to be created |
java.lang.String |
getNominalLabels()
Get the list of labels for nominal attribute creation |
java.lang.String[] |
getOptions()
Gets the current settings of the filter. |
java.lang.String |
globalInfo()
Returns a string describing this filter |
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 |
nominalLabelsTipText()
Returns the tip text for this property |
void |
setAttributeIndex(java.lang.String attIndex)
Sets index of the attribute used. |
void |
setAttributeName(java.lang.String name)
Set the new attribute's name |
boolean |
setInputFormat(Instances instanceInfo)
Sets the format of the input instances. |
void |
setNominalLabels(java.lang.String labelList)
Set the labels for nominal attribute creation. |
void |
setOptions(java.lang.String[] options)
Parses a list of options for this object. |
| Methods inherited from class weka.filters.Filter |
batchFilterFile, batchFinished, filterFile, getOutputFormat, inputFormat, isOutputFormatDefined, numPendingOutput, output, outputFormat, outputPeek, useFilter |
| Methods inherited from class java.lang.Object |
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public Add()
| Method Detail |
public java.lang.String globalInfo()
public java.util.Enumeration listOptions()
listOptions in interface OptionHandler
public void setOptions(java.lang.String[] options)
throws java.lang.Exception
-C index
Specify where to insert the column. First and last are valid indexes.
(default last)
-L label1,label2,...
Create nominal attribute with the given labels
(default numeric attribute)
-N name
Name of the new attribute. (default = 'Unnamed')
setOptions in interface OptionHandleroptions - 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 boolean setInputFormat(Instances instanceInfo)
throws java.lang.Exception
setInputFormat in class FilterinstanceInfo - an Instances object containing the input instance
structure (any instances contained in the object are ignored - only the
structure is required).
java.lang.Exception - if the format couldn't be set successfullypublic boolean input(Instance instance)
input in class Filterinstance - the input instance
java.lang.IllegalStateException - if no input format has been defined.public java.lang.String attributeNameTipText()
public java.lang.String getAttributeName()
public void setAttributeName(java.lang.String name)
name - the new namepublic java.lang.String attributeIndexTipText()
public java.lang.String getAttributeIndex()
public void setAttributeIndex(java.lang.String attIndex)
public java.lang.String nominalLabelsTipText()
public java.lang.String getNominalLabels()
public void setNominalLabels(java.lang.String labelList)
labelList - a comma separated list of labels
java.lang.IllegalArgumentException - if the labelList was invalidpublic static void main(java.lang.String[] argv)
argv - should contain arguments to the filter: use -h for help
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