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java.lang.Object | +--weka.filters.Filter | +--weka.filters.NumericTransformFilter
Transforms numeric attributes using a given transformation method.
Valid filter-specific options are:
-R index1,index2-index4,...
Specify list of columns to transform. First and last are valid indexes.
(default none). Non-numeric columns are skipped.
-V
Invert matching sense.
-C string
Name of the class containing the method used for transformation.
(default java.lang.Math)
-M string
Name of the method used for the transformation.
(default abs)
Field Summary |
Fields inherited from class weka.filters.Filter |
m_Debug, m_NewBatch |
Constructor Summary | |
NumericTransformFilter()
Default constructor -- sets the default transform method to java.lang.Math.abs(). |
Method Summary | |
String |
attributeIndicesTipText()
Returns the tip text for this property |
String |
getAttributeIndices()
Get the current range selection |
String |
getClassName()
Get the class containing the transformation method. |
boolean |
getInvertSelection()
Get whether the supplied columns are to be transformed or not |
String |
getMethodName()
Get the transformation method. |
String[] |
getOptions()
Gets the current settings of the filter. |
boolean |
input(Instance instance)
Input an instance for filtering. |
Enumeration |
listOptions()
Returns an enumeration describing the available options |
static void |
main(String[] argv)
Main method for testing this class. |
void |
setAttributeIndices(String rangeList)
Set which attributes are to be transformed (or kept if invert is true). |
void |
setAttributeIndicesArray(int[] attributes)
Set which attributes are to be transformed (or kept if invert is true) |
void |
setClassName(String name)
Sets the class containing the transformation method. |
boolean |
setInputFormat(Instances instanceInfo)
Sets the format of the input instances. |
void |
setInvertSelection(boolean invert)
Set whether selected columns should be transformed or not. |
void |
setMethodName(String name)
Set the transformation method. |
void |
setOptions(String[] options)
Parses the options for this object. |
Methods inherited from class weka.filters.Filter |
batchFilterFile, batchFinished, bufferInput, copyStringValues, copyStringValues, filterFile, flushInput, getInputFormat, getInputStringIndex, getOutputFormat, getOutputStringIndex, getStringIndices, inputFormat, isOutputFormatDefined, numPendingOutput, output, outputFormat, outputFormatPeek, outputPeek, push, resetQueue, setOutputFormat, useFilter |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public NumericTransformFilter()
Method Detail |
public boolean setInputFormat(Instances instanceInfo) throws 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).
Exception
- if the input format can't be set
successfullypublic boolean input(Instance instance) throws Exception
input
in class Filter
instance
- the input instance
IllegalStateException
- if no input format has been set.
InvocationTargetException
- if there is a problem applying
the configured transform method.
Exception
- if the input instance was not of the correct
format or if there was a problem with the filtering.public Enumeration listOptions()
listOptions
in interface OptionHandler
public void setOptions(String[] options) throws Exception
-R index1,index2-index4,...
Specify list of columns to transform. First and last are valid indexes.
(default none). Non-numeric columns are skipped.
-V
Invert matching sense.
-C string
Name of the class containing the method used for transformation.
(default java.lang.Math)
-M string
Name of the method used for the transformation.
(default abs)
setOptions
in interface OptionHandler
options
- the list of options as an array of strings
Exception
- if an option is not supportedpublic String[] getOptions()
getOptions
in interface OptionHandler
public String getClassName()
public void setClassName(String name) throws ClassNotFoundException
name
- the name of the class
ClassNotFoundException
- if class can't be foundpublic String getMethodName()
public void setMethodName(String name) throws NoSuchMethodException
name
- the name of the method
NoSuchMethodException
- if method can't be found in classpublic boolean getInvertSelection()
public void setInvertSelection(boolean invert)
invert
- the new invert settingpublic String attributeIndicesTipText()
public String getAttributeIndices()
public void setAttributeIndices(String rangeList)
rangeList
- a string representing the list of attributes. Since
the string will typically come from a user, attributes are indexed from
1. InvalidArgumentException
- if an invalid range list is suppliedpublic void setAttributeIndicesArray(int[] attributes)
attributes
- an array containing indexes of attributes to select.
Since the array will typically come from a program, attributes are indexed
from 0.
InvalidArgumentException
- if an invalid set of ranges is suppliedpublic static void main(String[] argv)
argv
- should contain arguments to the filter: use -h for help
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