类 StratifiedRemoveFolds
java.lang.Object
weka.filters.Filter
weka.filters.supervised.instance.StratifiedRemoveFolds
This filter takes a dataset and outputs a specified fold for cross validation. If you do not want the folds to be stratified use the unsupervised version.
Valid options are:
-V Specifies if inverse of selection is to be output.
-N <number of folds> Specifies number of folds dataset is split into. (default 10)
-F <fold> Specifies which fold is selected. (default 1)
-S <seed> Specifies random number seed. (default 0, no randomizing)
- 版本:
- $Revision: 5542 $
- 作者:
- Eibe Frank (eibe@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 tip text for this propertyReturns the Capabilities of this filter.int
getFold()
Gets the fold which is selected.boolean
Gets if selection is to be inverted.int
Gets the number of folds in which dataset is to be split into.String[]
Gets the current settings of the filter.Returns the revision string.long
getSeed()
Gets the random number seed used for shuffling the dataset.Returns a string describing this filterboolean
Input an instance for filtering.Returns the tip text for this propertyGets an enumeration describing the available options..static void
Main method for testing this class.Returns the tip text for this propertyReturns the tip text for this propertyvoid
setFold
(int fold) Selects a fold.boolean
setInputFormat
(Instances instanceInfo) Sets the format of the input instances.void
setInvertSelection
(boolean inverse) Sets if selection is to be inverted.void
setNumFolds
(int numFolds) Sets the number of folds the dataset is split into.void
setOptions
(String[] options) Parses a given list of options.void
setSeed
(long seed) Sets the random number seed for shuffling the dataset.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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StratifiedRemoveFolds
public StratifiedRemoveFolds()
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方法详细资料
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listOptions
Gets 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:-V Specifies if inverse of selection is to be output.
-N <number of folds> Specifies number of folds dataset is split into. (default 10)
-F <fold> Specifies which fold is selected. (default 1)
-S <seed> Specifies random number seed. (default 0, no randomizing)
- 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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globalInfo
Returns a string describing this filter- 返回:
- a description of the filter suitable for displaying in the explorer/experimenter gui
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invertSelectionTipText
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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getInvertSelection
public boolean getInvertSelection()Gets if selection is to be inverted.- 返回:
- true if the selection is to be inverted
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setInvertSelection
public void setInvertSelection(boolean inverse) Sets if selection is to be inverted.- 参数:
inverse
- true if inversion is to be performed
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numFoldsTipText
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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getNumFolds
public int getNumFolds()Gets the number of folds in which dataset is to be split into.- 返回:
- the number of folds the dataset is to be split into.
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setNumFolds
public void setNumFolds(int numFolds) Sets the number of folds the dataset is split into. If the number of folds is zero, it won't split it into folds.- 参数:
numFolds
- number of folds dataset is to be split into- 抛出:
IllegalArgumentException
- if number of folds is negative
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foldTipText
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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getFold
public int getFold()Gets the fold which is selected.- 返回:
- the fold which is selected
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setFold
public void setFold(int fold) Selects a fold.- 参数:
fold
- the fold to be selected.- 抛出:
IllegalArgumentException
- if fold's index is smaller than 1
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seedTipText
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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getSeed
public long getSeed()Gets the random number seed used for shuffling the dataset.- 返回:
- the random number seed
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setSeed
public void setSeed(long seed) Sets the random number seed for shuffling the dataset. If seed is negative, shuffling won't be performed.- 参数:
seed
- the random number 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 because outputFormat can be collected immediately
- 抛出:
Exception
- if the input format can't be set successfully
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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. Output() may now be called to retrieve the filtered instances.- 覆盖:
batchFinished
在类中Filter
- 返回:
- true if there are instances pending output
- 抛出:
IllegalStateException
- if no input structure has been defined
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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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