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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 | |
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Randomize()
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Method Summary | |
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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 |
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 |
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batchFilterFile, 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 Randomize()
Method Detail |
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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 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 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 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).
java.lang.Exception
- if format cannot be processedpublic boolean input(Instance instance)
input
in class Filter
instance
- the input instance
java.lang.IllegalStateException
- if no input structure has been definedpublic boolean batchFinished()
batchFinished
in class Filter
java.lang.IllegalStateException
- if no input format has been set.public static void main(java.lang.String[] argv)
argv
- should contain arguments to the filter: use -h for help
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