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java.lang.Objectweka.filters.Filter
weka.filters.unsupervised.instance.Randomize
public class Randomize
Randomly shuffles the order of instances passed through it. The random number generator is reset with the seed value whenever a new set of instances is passed in.
Valid options are:-S <num> Specify the random number seed (default 42)
| Constructor Summary | |
|---|---|
Randomize()
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| Method Summary | |
|---|---|
boolean |
batchFinished()
Signify that this batch of input to the filter is finished. |
Capabilities |
getCapabilities()
Returns the Capabilities of this filter. |
java.lang.String[] |
getOptions()
Gets the current settings of the filter. |
int |
getRandomSeed()
Get the random number generator seed value. |
java.lang.String |
getRevision()
Returns the revision string. |
java.lang.String |
globalInfo()
Returns a string describing this classifier |
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 |
randomSeedTipText()
Returns the tip text for this property |
boolean |
setInputFormat(Instances instanceInfo)
Sets the format of the input instances. |
void |
setOptions(java.lang.String[] options)
Parses a given list of options. |
void |
setRandomSeed(int newRandomSeed)
Set the random number generator seed value. |
| 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 Randomize()
| 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
-S <num> Specify the random number seed (default 42)
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 randomSeedTipText()
public int getRandomSeed()
public void setRandomSeed(int newRandomSeed)
newRandomSeed - value to use as the random number generator seed.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).
java.lang.Exception - if format cannot be processedpublic boolean input(Instance instance)
input in class Filterinstance - the input instance
java.lang.IllegalStateException - if no input structure has been definedpublic boolean batchFinished()
batchFinished in class Filterjava.lang.IllegalStateException - if no input format has been set.public 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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