类 Randomize
java.lang.Object
weka.filters.Filter
weka.filters.unsupervised.instance.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)
- 版本:
- $Revision: 5548 $
- 作者:
- Len Trigg (trigg@cs.waikato.ac.nz)
- 另请参阅:
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构造器概要
构造器 -
方法概要
修饰符和类型方法说明boolean
Signify that this batch of input to the filter is finished.Returns the Capabilities of this filter.String[]
Gets the current settings of the filter.int
Get the random number generator seed value.Returns the revision string.Returns a string describing this classifierboolean
Input an instance for filtering.Returns an enumeration describing the available options.static void
Main method for testing this class.Returns the tip text for this propertyboolean
setInputFormat
(Instances instanceInfo) Sets the format of the input instances.void
setOptions
(String[] options) Parses a given list of options.void
setRandomSeed
(int newRandomSeed) Set the random number generator seed value.从类继承的方法 weka.filters.Filter
batchFilterFile, filterFile, getCapabilities, getOutputFormat, isFirstBatchDone, isNewBatch, isOutputFormatDefined, makeCopies, makeCopy, numPendingOutput, output, outputPeek, toString, useFilter, wekaStaticWrapper
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构造器详细资料
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Randomize
public Randomize()
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方法详细资料
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globalInfo
Returns a string describing this classifier- 返回:
- a description of the classifier suitable for displaying in the explorer/experimenter gui
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listOptions
Returns an enumeration describing the available options.- 指定者:
listOptions
在接口中OptionHandler
- 返回:
- an enumeration of all the available options.
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setOptions
Parses a given list of options. Valid options are:-S <num> Specify the random number seed (default 42)
- 指定者:
setOptions
在接口中OptionHandler
- 参数:
options
- the list of options as an array of strings- 抛出:
Exception
- if an option is not supported
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getOptions
Gets the current settings of the filter.- 指定者:
getOptions
在接口中OptionHandler
- 返回:
- an array of strings suitable for passing to setOptions
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randomSeedTipText
Returns the tip text for this property- 返回:
- tip text for this property suitable for displaying in the explorer/experimenter gui
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getRandomSeed
public int getRandomSeed()Get the random number generator seed value.- 返回:
- random number generator seed value.
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setRandomSeed
public void setRandomSeed(int newRandomSeed) Set the random number generator seed value.- 参数:
newRandomSeed
- value to use as the random number generator seed.
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getCapabilities
Returns the Capabilities of this filter.- 指定者:
getCapabilities
在接口中CapabilitiesHandler
- 覆盖:
getCapabilities
在类中Filter
- 返回:
- the capabilities of this object
- 另请参阅:
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setInputFormat
Sets the format of the input instances.- 覆盖:
setInputFormat
在类中Filter
- 参数:
instanceInfo
- an Instances object containing the input instance structure (any instances contained in the object are ignored - only the structure is required).- 返回:
- true if the outputFormat may be collected immediately
- 抛出:
Exception
- if format cannot be processed
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input
Input an instance for filtering. Filter requires all training instances be read before producing output.- 覆盖:
input
在类中Filter
- 参数:
instance
- the input instance- 返回:
- true if the filtered instance may now be collected with output().
- 抛出:
IllegalStateException
- if no input structure has been defined
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batchFinished
public boolean batchFinished()Signify that this batch of input to the filter is finished. If the filter requires all instances prior to filtering, output() may now be called to retrieve the filtered instances. Any subsequent instances filtered should be filtered based on setting obtained from the first batch (unless the setInputFormat has been re-assigned or new options have been set). This implementation randomizes all the instances received in the batch.- 覆盖:
batchFinished
在类中Filter
- 返回:
- true if there are instances pending output
- 抛出:
IllegalStateException
- if no input format has been set.
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getRevision
Returns the revision string.- 指定者:
getRevision
在接口中RevisionHandler
- 覆盖:
getRevision
在类中Filter
- 返回:
- the revision
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main
Main method for testing this class.- 参数:
argv
- should contain arguments to the filter: use -h for help
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