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java.lang.Objectweka.filters.Filter
weka.filters.unsupervised.attribute.StringToNominal
public class StringToNominal
Converts a string attribute (i.e. unspecified number of values) to nominal (i.e. set number of values). You should ensure that all string values that will appear are represented in the first batch of the data.
Valid options are:-R <col> Sets the range of attribute indices (default last).
| Constructor Summary | |
|---|---|
StringToNominal()
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| Method Summary | |
|---|---|
java.lang.String |
attributeRangeTipText()
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boolean |
batchFinished()
Signifies that this batch of input to the filter is finished. |
java.lang.String |
getAttributeRange()
Get the range of indices of the attributes used. |
Capabilities |
getCapabilities()
Returns the Capabilities of this filter. |
java.lang.String[] |
getOptions()
Gets the current settings of the filter. |
java.lang.String |
getRevision()
Returns the revision string. |
java.lang.String |
globalInfo()
Returns a string describing this filter |
boolean |
input(Instance instance)
Input an instance for filtering. |
java.util.Enumeration<Option> |
listOptions()
Returns an enumeration describing the available options. |
static void |
main(java.lang.String[] argv)
Main method for testing this class. |
void |
setAttributeRange(java.lang.String rangeList)
Sets range of indices of the attributes used. |
boolean |
setInputFormat(Instances instanceInfo)
Sets the format of the input instances. |
void |
setOptions(java.lang.String[] options)
Parses a given list of options. |
| Methods inherited from class weka.filters.Filter |
|---|
batchFilterFile, filterFile, getCapabilities, getOutputFormat, isFirstBatchDone, isNewBatch, isOutputFormatDefined, makeCopies, makeCopy, numPendingOutput, output, outputPeek, toString, useFilter, wekaStaticWrapper |
| Methods inherited from class java.lang.Object |
|---|
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
public StringToNominal()
| Method Detail |
|---|
public java.lang.String globalInfo()
public Capabilities getCapabilities()
getCapabilities in interface CapabilitiesHandlergetCapabilities in class FilterCapabilities
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).
UnsupportedAttributeTypeException - if the selected attribute
a string attribute.
java.lang.Exception - if the input format can't be set
successfully.public boolean input(Instance instance)
input in class Filterinstance - the input instance.
java.lang.IllegalStateException - if no input structure has been defined.public boolean batchFinished()
batchFinished in class Filterjava.lang.IllegalStateException - if no input structure has been defined.public java.util.Enumeration<Option> listOptions()
listOptions in interface OptionHandler
public void setOptions(java.lang.String[] options)
throws java.lang.Exception
-R <col> Sets the range of attribute indices (default last).
-V <col> Inverts the selection specified by -R.
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 OptionHandlerpublic java.lang.String attributeRangeTipText()
public java.lang.String getAttributeRange()
public void setAttributeRange(java.lang.String rangeList)
attIndex - the index of the attributepublic java.lang.String getRevision()
getRevision in interface RevisionHandlergetRevision in class Filterpublic static void main(java.lang.String[] argv)
argv - should contain arguments to the filter:
use -h for help
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