类 C45Loader
java.lang.Object
weka.core.converters.AbstractLoader
weka.core.converters.AbstractFileLoader
weka.core.converters.C45Loader
- 所有已实现的接口:
Serializable
,BatchConverter
,FileSourcedConverter
,IncrementalConverter
,Loader
,EnvironmentHandler
,RevisionHandler
Reads a file that is C45 format. Can take a filestem or filestem with .names or .data appended. Assumes that path/<filestem>.names and path/<filestem>.data exist and contain the names and data respectively.
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字段概要
字段从类继承的字段 weka.core.converters.AbstractFileLoader
FILE_EXTENSION_COMPRESSED
从接口继承的字段 weka.core.converters.Loader
BATCH, INCREMENTAL, NONE
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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Return the full data set.Returns a description of the file type.Get the file extension used for arff filesString[]
Gets all the file extensions used for this type of filegetNextInstance
(Instances structure) Read the data set incrementally---get the next instance in the data set or returns null if there are no more instances to get.Returns the revision string.Determines and returns (if possible) the structure (internally the header) of the data set as an empty set of instances.Returns a string describing this attribute evaluatorstatic void
Main method for testing this class.void
reset()
Resets the Loader ready to read a new data set or the same data set again.void
Resets the Loader object and sets the source of the data set to be the supplied File object.从类继承的方法 weka.core.converters.AbstractFileLoader
getUseRelativePath, retrieveFile, runFileLoader, setEnvironment, setFile, setUseRelativePath, useRelativePathTipText
从类继承的方法 weka.core.converters.AbstractLoader
setRetrieval, setSource
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字段详细资料
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FILE_EXTENSION
the file extension
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构造器详细资料
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C45Loader
public C45Loader()
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方法详细资料
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globalInfo
Returns a string describing this attribute evaluator- 返回:
- a description of the evaluator suitable for displaying in the explorer/experimenter gui
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reset
Resets the Loader ready to read a new data set or the same data set again.- 指定者:
reset
在接口中Loader
- 覆盖:
reset
在类中AbstractFileLoader
- 抛出:
IOException
- if something goes wrong
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getFileExtension
Get the file extension used for arff files- 指定者:
getFileExtension
在接口中FileSourcedConverter
- 返回:
- the file extension
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getFileExtensions
Gets all the file extensions used for this type of file- 指定者:
getFileExtensions
在接口中FileSourcedConverter
- 返回:
- the file extensions
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getFileDescription
Returns a description of the file type.- 指定者:
getFileDescription
在接口中FileSourcedConverter
- 返回:
- a short file description
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setSource
Resets the Loader object and sets the source of the data set to be the supplied File object.- 指定者:
setSource
在接口中Loader
- 覆盖:
setSource
在类中AbstractFileLoader
- 参数:
file
- the source file.- 抛出:
IOException
- if an error occurs
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getStructure
Determines and returns (if possible) the structure (internally the header) of the data set as an empty set of instances.- 指定者:
getStructure
在接口中Loader
- 指定者:
getStructure
在类中AbstractLoader
- 返回:
- the structure of the data set as an empty set of Instances
- 抛出:
IOException
- if an error occurs
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getDataSet
Return the full data set. If the structure hasn't yet been determined by a call to getStructure then method should do so before processing the rest of the data set.- 指定者:
getDataSet
在接口中Loader
- 指定者:
getDataSet
在类中AbstractLoader
- 返回:
- the structure of the data set as an empty set of Instances
- 抛出:
IOException
- if there is no source or parsing fails
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getNextInstance
Read the data set incrementally---get the next instance in the data set or returns null if there are no more instances to get. If the structure hasn't yet been determined by a call to getStructure then method should do so before returning the next instance in the data set. If it is not possible to read the data set incrementally (ie. in cases where the data set structure cannot be fully established before all instances have been seen) then an exception should be thrown.- 指定者:
getNextInstance
在接口中Loader
- 指定者:
getNextInstance
在类中AbstractLoader
- 参数:
structure
- the dataset header information, will get updated in case of string or relational attributes- 返回:
- the next instance in the data set as an Instance object or null if there are no more instances to be read
- 抛出:
IOException
- if there is an error during parsing
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getRevision
Returns the revision string.- 指定者:
getRevision
在接口中RevisionHandler
- 返回:
- the revision
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main
Main method for testing this class.- 参数:
args
- should contain <filestem>[.names | data]
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