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java.lang.Objectweka.filters.Filter
weka.filters.SimpleFilter
weka.filters.SimpleStreamFilter
weka.filters.unsupervised.attribute.RandomSubset
public class RandomSubset
Chooses a random subset of attributes, either an absolute number or a percentage. The class is always included in the output (as the last attribute).
Valid options are:-D Turns on output of debugging information.
-N <double> The number of attributes to randomly select. If < 1 then percentage, >= 1 absolute number. (default: 0.5)
-S <int> The seed value. (default: 1)
| Constructor Summary | |
|---|---|
RandomSubset()
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| Method Summary | |
|---|---|
Capabilities |
getCapabilities()
Returns the Capabilities of this filter. |
double |
getNumAttributes()
Get the number of attributes (< 1 percentage, >= 1 absolute number). |
java.lang.String[] |
getOptions()
Gets the current settings of the filter. |
java.lang.String |
getRevision()
Returns the revision string. |
int |
getSeed()
Get the seed value for the random number generator. |
java.lang.String |
globalInfo()
Returns a string describing this filter. |
java.util.Enumeration |
listOptions()
Returns an enumeration describing the available options. |
static void |
main(java.lang.String[] args)
Runs the filter with the given parameters. |
java.lang.String |
numAttributesTipText()
Returns the tip text for this property. |
java.lang.String |
seedTipText()
Returns the tip text for this property. |
void |
setNumAttributes(double value)
Set the number of attributes. |
void |
setOptions(java.lang.String[] options)
Parses a given list of options. |
void |
setSeed(int value)
Set the seed value for the random number generator. |
| Methods inherited from class weka.filters.SimpleStreamFilter |
|---|
batchFinished, input |
| Methods inherited from class weka.filters.SimpleFilter |
|---|
debugTipText, getDebug, setDebug, setInputFormat |
| 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 RandomSubset()
| Method Detail |
|---|
public java.lang.String globalInfo()
globalInfo in class SimpleFilterpublic java.util.Enumeration listOptions()
listOptions in interface OptionHandlerlistOptions in class SimpleFilterpublic java.lang.String[] getOptions()
getOptions in interface OptionHandlergetOptions in class SimpleFilter
public void setOptions(java.lang.String[] options)
throws java.lang.Exception
-D Turns on output of debugging information.
-N <double> The number of attributes to randomly select. If < 1 then percentage, >= 1 absolute number. (default: 0.5)
-S <int> The seed value. (default: 1)
setOptions in interface OptionHandlersetOptions in class SimpleFilteroptions - the list of options as an array of strings
java.lang.Exception - if an option is not supportedSimpleFilter.reset()public java.lang.String numAttributesTipText()
public double getNumAttributes()
public void setNumAttributes(double value)
value - the number of attributes to use.public java.lang.String seedTipText()
public int getSeed()
public void setSeed(int value)
value - the seed value.public Capabilities getCapabilities()
getCapabilities in interface CapabilitiesHandlergetCapabilities in class FilterCapabilitiespublic java.lang.String getRevision()
getRevision in interface RevisionHandlergetRevision in class Filterpublic static void main(java.lang.String[] args)
args - the commandline options
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