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java.lang.Objectweka.core.converters.AbstractLoader
weka.core.converters.AbstractFileLoader
weka.core.converters.LibSVMLoader
public class LibSVMLoader
Reads a source that is in libsvm format.
For more information about libsvm see:
http://www.csie.ntu.edu.tw/~cjlin/libsvm/
Loader,
Serialized Form| Field Summary | |
|---|---|
static java.lang.String |
FILE_EXTENSION
the file extension. |
| Fields inherited from class weka.core.converters.AbstractFileLoader |
|---|
FILE_EXTENSION_COMPRESSED |
| Constructor Summary | |
|---|---|
LibSVMLoader()
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| Method Summary | |
|---|---|
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)
LibSVmLoader is unable to process a data set incrementally. |
java.lang.String |
getRevision()
Returns the revision string. |
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.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 |
|---|
getUseRelativePath, retrieveFile, runFileLoader, setEnvironment, setFile, setSource, setUseRelativePath, useRelativePathTipText |
| Methods inherited from class java.lang.Object |
|---|
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
|---|
public static java.lang.String FILE_EXTENSION
| Constructor Detail |
|---|
public LibSVMLoader()
| Method Detail |
|---|
public java.lang.String globalInfo()
public java.lang.String getFileExtension()
getFileExtension in interface FileSourcedConverterpublic java.lang.String[] getFileExtensions()
getFileExtensions in interface FileSourcedConverterpublic java.lang.String getFileDescription()
getFileDescription in interface FileSourcedConverter
public void reset()
throws java.io.IOException
reset in interface Loaderreset in class AbstractFileLoaderjava.io.IOException - if something goes wrong
public void setSource(java.net.URL url)
throws java.io.IOException
url - the source url.
java.io.IOException - if an error occurs
public void setURL(java.lang.String url)
throws java.io.IOException
setURL in interface URLSourcedLoaderurl - 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 LoadersetSource in class AbstractLoaderin - the source InputStream.
java.io.IOException - if initialization of reader fails.
public Instances getStructure()
throws java.io.IOException
getStructure in interface LoadergetStructure in class AbstractLoaderjava.io.IOException - if an error occurs
public Instances getDataSet()
throws java.io.IOException
getDataSet in interface LoadergetDataSet in class AbstractLoaderjava.io.IOException - if there is no source or parsing fails
public Instance getNextInstance(Instances structure)
throws java.io.IOException
getNextInstance in interface LoadergetNextInstance in class AbstractLoaderstructure - ignored
java.io.IOException - always. LibSVMLoader is unable to process a
data set incrementally.public java.lang.String getRevision()
getRevision in interface RevisionHandlerpublic static void main(java.lang.String[] args)
args - should contain the name of an input file.
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