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java.lang.Objectweka.filters.Filter
weka.filters.unsupervised.instance.Normalize
public class Normalize
This filter normalize all instances of a dataset to have a given norm. Only numeric values are considered, and the class attribute is ignored. Valid filter-specific options are:
-L num
Specify the Lnorm to used on the normalization (default 2.0).
-N num
Specify the norm of the instances after normalization (default 1.0).
| Constructor Summary | |
|---|---|
Normalize()
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| Method Summary | |
|---|---|
double |
getLNorm()
Get the L Norm used. |
double |
getNorm()
Get the instance's Norm. |
java.lang.String[] |
getOptions()
Gets the current settings of the filter. |
java.lang.String |
globalInfo()
Returns a string describing this filter |
boolean |
input(Instance instance)
Input an instance for filtering. |
java.util.Enumeration |
listOptions()
Returns an enumeration describing the available options. |
java.lang.String |
LNormTipText()
Returns the tip text for this property |
static void |
main(java.lang.String[] argv)
Main method for testing this class. |
java.lang.String |
normTipText()
Returns the tip text for this property |
boolean |
setInputFormat(Instances instanceInfo)
Sets the format of the input instances. |
void |
setLNorm(double newLNorm)
Set the L-norm to used |
void |
setNorm(double newNorm)
Set the norm of the instances |
void |
setOptions(java.lang.String[] options)
Parses a list of options for this object. |
| Methods inherited from class weka.filters.Filter |
|---|
batchFilterFile, batchFinished, filterFile, getOutputFormat, inputFormat, isOutputFormatDefined, numPendingOutput, output, outputFormat, outputPeek, useFilter |
| Methods inherited from class java.lang.Object |
|---|
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public Normalize()
| Method Detail |
|---|
public java.lang.String globalInfo()
public java.lang.String LNormTipText()
public java.lang.String normTipText()
public java.util.Enumeration listOptions()
listOptions in interface OptionHandler
public void setOptions(java.lang.String[] options)
throws java.lang.Exception
-L num
Specify the L-Norm to use (default 2.0).
-N num
Specify the norm of the instances after normalization (default 1.0).
setOptions in interface OptionHandleroptions - 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 OptionHandlerpublic double getNorm()
public void setNorm(double newNorm)
newNorm - the norm to wich the instances must be setpublic double getLNorm()
public void setLNorm(double newLNorm)
the - L-norm
public boolean setInputFormat(Instances instanceInfo)
throws java.lang.Exception
setInputFormat in class FilterinstanceInfo - 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 inputFormat can't be set successfully
public boolean input(Instance instance)
throws java.lang.Exception
input in class Filterinstance - the input instance
java.lang.IllegalStateException - if no input format has been defined.
java.lang.NullPointerException - if the input format has not been
defined.
java.lang.Exception - if the input instance was not of the correct
format or if there was a problem with the filtering.public static void main(java.lang.String[] argv)
argv - should contain arguments to the filter: use -h for help
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