public class AddNoise extends Filter implements UnsupervisedFilter, OptionHandler
-C <col> Index of the attribute to be changed (default last attribute)
-M Treat missing values as an extra value
-P <num> Specify the percentage of noise introduced to the data (default 10)
-S <num> Specify the random number seed (default 1)
Constructor and Description |
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AddNoise() |
Modifier and Type | Method and Description |
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void |
addNoise(Instances instances,
int seed,
int percent,
int attIndex,
boolean useMissing)
add noise to the dataset
a given percentage of the instances are changed in the way, that
a set of instances are randomly selected using seed.
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java.lang.String |
attributeIndexTipText()
Returns the tip text for this property
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boolean |
batchFinished()
Signify that this batch of input to the filter is finished.
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java.lang.String |
getAttributeIndex()
Get the index of the attribute used.
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Capabilities |
getCapabilities()
Returns the Capabilities of this filter.
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java.lang.String[] |
getOptions()
Gets the current settings of the filter.
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int |
getPercent()
Gets the size of noise data as a percentage of the original set.
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int |
getRandomSeed()
Gets the random number seed.
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java.lang.String |
getRevision()
Returns the revision string.
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boolean |
getUseMissing()
Gets the flag if missing values are treated as extra values.
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java.lang.String |
globalInfo()
Returns a string describing this filter
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boolean |
input(Instance instance)
Input an instance for filtering.
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java.util.Enumeration |
listOptions()
Returns an enumeration describing the available options
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static void |
main(java.lang.String[] argv)
Main method for testing this class.
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java.lang.String |
percentTipText()
Returns the tip text for this property
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java.lang.String |
randomSeedTipText()
Returns the tip text for this property
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void |
setAttributeIndex(java.lang.String attIndex)
Sets index of the attribute used.
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boolean |
setInputFormat(Instances instanceInfo)
Sets the format of the input instances.
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void |
setOptions(java.lang.String[] options)
Parses a given list of options.
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void |
setPercent(int newPercent)
Sets the size of noise data, as a percentage of the original set.
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void |
setRandomSeed(int newSeed)
Sets the random number seed.
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void |
setUseMissing(boolean newUseMissing)
Sets the flag if missing values are treated as extra values.
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java.lang.String |
useMissingTipText()
Returns the tip text for this property
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batchFilterFile, filterFile, getCapabilities, getOutputFormat, isFirstBatchDone, isNewBatch, isOutputFormatDefined, makeCopies, makeCopy, numPendingOutput, output, outputPeek, toString, useFilter, wekaStaticWrapper
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
-C <col> Index of the attribute to be changed (default last attribute)
-M Treat missing values as an extra value
-P <num> Specify the percentage of noise introduced to the data (default 10)
-S <num> Specify the random number seed (default 1)
setOptions
in interface OptionHandler
options
- the list of options as an array of stringsjava.lang.Exception
- if an option is not supportedpublic java.lang.String[] getOptions()
getOptions
in interface OptionHandler
public java.lang.String useMissingTipText()
public boolean getUseMissing()
public void setUseMissing(boolean newUseMissing)
newUseMissing
- the new flag value.public java.lang.String randomSeedTipText()
public int getRandomSeed()
public void setRandomSeed(int newSeed)
newSeed
- the new random number seed.public java.lang.String percentTipText()
public int getPercent()
public void setPercent(int newPercent)
newPercent
- the subsample set size, between 0 and 100.public java.lang.String attributeIndexTipText()
public java.lang.String getAttributeIndex()
public void setAttributeIndex(java.lang.String attIndex)
attIndex
- the index of the attributepublic 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 the input format can't be set
successfullypublic boolean input(Instance instance) throws java.lang.Exception
public boolean batchFinished() throws java.lang.Exception
batchFinished
in class Filter
java.lang.Exception
- if no input structure has been definedpublic void addNoise(Instances instances, int seed, int percent, int attIndex, boolean useMissing)
instances
- is the datasetseed
- used for random functionpercent
- percentage of instances that are changedattIndex
- index of the attribute changeduseMissing
- if true missing values are treated as extra valuepublic java.lang.String getRevision()
getRevision
in interface RevisionHandler
getRevision
in class Filter
public static void main(java.lang.String[] argv)
argv
- should contain arguments to the filter:
use -h for help