类 NumericToNominal
java.lang.Object
weka.filters.Filter
weka.filters.SimpleFilter
weka.filters.SimpleBatchFilter
weka.filters.unsupervised.attribute.NumericToNominal
- 所有已实现的接口:
Serializable
,CapabilitiesHandler
,OptionHandler
,RevisionHandler
A filter for turning numeric attributes into
nominal ones. Unlike discretization, it just takes all numeric values and
adds them to the list of nominal values of that attribute. Useful after CSV
imports, to enforce certain attributes to become nominal, e.g., the class
attribute, containing values from 1 to 5.
Valid options are:
-R <col1,col2-col4,...> Specifies list of columns to Discretize. First and last are valid indexes. (default: first-last)
-V Invert matching sense of column indexes.
- 版本:
- $Revision: 10988 $
- 作者:
- fracpete (fracpete at waikato dot ac dot 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Returns the tip text for this propertyGets the current range selectionReturns the Capabilities of this filter.boolean
Gets whether the supplied columns are to be worked on or the others.String[]
Gets the current settings of the filter.Returns the revision string.Returns a string describing this filterReturns the tip text for this propertyGets an enumeration describing the available options.static void
Runs the filter with the given parameters.void
setAttributeIndices
(String value) Sets which attributes are to be "nominalized" (only numeric attributes among the selection will be transformed).void
setAttributeIndicesArray
(int[] value) Sets which attributes are to be transoformed to nominal.void
setInvertSelection
(boolean value) Sets whether selected columns should be worked on or all the others apart from these.void
setOptions
(String[] options) Parses a given list of options.从类继承的方法 weka.filters.SimpleBatchFilter
batchFinished, input
从类继承的方法 weka.filters.SimpleFilter
debugTipText, getDebug, setDebug, setInputFormat
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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NumericToNominal
public NumericToNominal()
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方法详细资料
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globalInfo
Returns a string describing this filter- 指定者:
globalInfo
在类中SimpleFilter
- 返回:
- a description of the filter suitable for displaying in the explorer/experimenter gui
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listOptions
Gets an enumeration describing the available options.- 指定者:
listOptions
在接口中OptionHandler
- 覆盖:
listOptions
在类中SimpleFilter
- 返回:
- an enumeration of all the available options.
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setOptions
Parses a given list of options. Valid options are:-R <col1,col2-col4,...> Specifies list of columns to Discretize. First and last are valid indexes. (default: first-last)
-V Invert matching sense of column indexes.
- 指定者:
setOptions
在接口中OptionHandler
- 覆盖:
setOptions
在类中SimpleFilter
- 参数:
options
- the list of options as an array of strings- 抛出:
Exception
- if an option is not supported- 另请参阅:
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SimpleFilter.reset()
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getOptions
Gets the current settings of the filter.- 指定者:
getOptions
在接口中OptionHandler
- 覆盖:
getOptions
在类中SimpleFilter
- 返回:
- an array of strings suitable for passing to setOptions
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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 whether the supplied columns are to be worked on or the others.- 返回:
- true if the supplied columns will be worked on
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setInvertSelection
public void setInvertSelection(boolean value) Sets whether selected columns should be worked on or all the others apart from these. If true all the other columns are considered for "nominalization".- 参数:
value
- the new invert setting
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attributeIndicesTipText
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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getAttributeIndices
Gets the current range selection- 返回:
- a string containing a comma separated list of ranges
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setAttributeIndices
Sets which attributes are to be "nominalized" (only numeric attributes among the selection will be transformed).- 参数:
value
- a string representing the list of attributes. Since the string will typically come from a user, attributes are indexed from 1.
eg: first-3,5,6-last- 抛出:
IllegalArgumentException
- if an invalid range list is supplied
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setAttributeIndicesArray
public void setAttributeIndicesArray(int[] value) Sets which attributes are to be transoformed to nominal. (only numeric attributes among the selection will be transformed).- 参数:
value
- an array containing indexes of attributes to nominalize. Since the array will typically come from a program, attributes are indexed from 0.- 抛出:
IllegalArgumentException
- if an invalid set of ranges is supplied
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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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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
Runs the filter with the given parameters. Use -h to list options.- 参数:
args
- the commandline options
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