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java.lang.Objectweka.core.converters.AbstractLoader
weka.core.converters.AbstractFileLoader
weka.core.converters.XRFFLoader
public class XRFFLoader
Reads a source that is in the XML version of the ARFF format. It automatically decompresses the data if the extension is '.xrff.gz'.
Loader
,
Serialized FormField Summary | |
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static java.lang.String |
FILE_EXTENSION
the file extension |
static java.lang.String |
FILE_EXTENSION_COMPRESSED
the extension for compressed files |
Constructor Summary | |
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XRFFLoader()
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Method Summary | |
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Instances |
getDataSet()
Return the full data set. |
java.lang.String |
getFileDescription()
Returns a description of the file type. |
java.lang.String |
getFileExtension()
Get the file extension used for libsvm files |
java.lang.String[] |
getFileExtensions()
Gets all the file extensions used for this type of file |
Instance |
getNextInstance(Instances structure)
XRFFLoader is unable to process a data set incrementally. |
Instances |
getStructure()
Determines and returns (if possible) the structure (internally the header) of the data set as an empty set of instances. |
java.lang.String |
globalInfo()
Returns a string describing this Loader |
static void |
main(java.lang.String[] args)
Main method. |
void |
reset()
Resets the Loader ready to read a new data set |
java.lang.String |
retrieveURL()
Return the current url |
void |
setSource(java.io.File file)
Resets the Loader object and sets the source of the data set to be the supplied File object. |
void |
setSource(java.io.InputStream in)
Resets the Loader object and sets the source of the data set to be the supplied InputStream. |
void |
setSource(java.net.URL url)
Resets the Loader object and sets the source of the data set to be the supplied url. |
void |
setURL(java.lang.String url)
Set the url to load from |
Methods inherited from class weka.core.converters.AbstractFileLoader |
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retrieveFile, runFileLoader, setFile |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static java.lang.String FILE_EXTENSION
public static java.lang.String FILE_EXTENSION_COMPRESSED
Constructor Detail |
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public XRFFLoader()
Method Detail |
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public java.lang.String globalInfo()
public java.lang.String getFileExtension()
getFileExtension
in interface FileSourcedConverter
public java.lang.String[] getFileExtensions()
getFileExtensions
in interface FileSourcedConverter
public java.lang.String getFileDescription()
getFileDescription
in interface FileSourcedConverter
public void reset() throws java.io.IOException
reset
in interface Loader
reset
in class AbstractFileLoader
java.io.IOException
- if something goes wrongpublic void setSource(java.io.File file) throws java.io.IOException
setSource
in interface Loader
setSource
in class AbstractFileLoader
file
- the source file.
java.io.IOException
- if an error occurspublic void setSource(java.net.URL url) throws java.io.IOException
url
- the source url.
java.io.IOException
- if an error occurspublic void setURL(java.lang.String url) throws java.io.IOException
setURL
in interface URLSourcedLoader
url
- the url to load from
java.io.IOException
- if the url can't be set.public java.lang.String retrieveURL()
retrieveURL
in interface URLSourcedLoader
public void setSource(java.io.InputStream in) throws java.io.IOException
setSource
in interface Loader
setSource
in class AbstractLoader
in
- the source InputStream.
java.io.IOException
- if initialization of reader fails.public Instances getStructure() throws java.io.IOException
getStructure
in interface Loader
getStructure
in class AbstractLoader
java.io.IOException
- if an error occurspublic Instances getDataSet() throws java.io.IOException
getDataSet
in interface Loader
getDataSet
in class AbstractLoader
java.io.IOException
- if there is no source or parsing failspublic Instance getNextInstance(Instances structure) throws java.io.IOException
getNextInstance
in interface Loader
getNextInstance
in class AbstractLoader
structure
- ignored
java.io.IOException
- always. XRFFLoader is unable to process a
data set incrementally.public static void main(java.lang.String[] args)
args
- should contain the name of an input file.
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