org.datavec.api.records.writer.impl.misc

Class LibSvmRecordWriter

java.lang.Object

org.datavec.api.records.writer.impl.FileRecordWriter

org.datavec.api.records.writer.impl.misc.SVMLightRecordWriter

org.datavec.api.records.writer.impl.misc.LibSvmRecordWriter

All Implemented Interfaces:

Closeable, AutoCloseable, Configurable, RecordWriter

public class LibSvmRecordWriter
extends SVMLightRecordWriter

Record writer for libsvm format, which is closely related to SVMLight format. Similar to scikit-learn we use a single writer for both formats, so this class is a subclass of SVMLightRecordWriter.

Author:

Adam Gibson (original), dave@skymind.io

See Also:

Further details on the format can be found at - http://svmlight.joachims.org/ - http://www.csie.ntu.edu.tw/~cjlin/libsvmtools/datasets/multilabel.html - http://scikit-learn.org/stable/modules/generated/sklearn.datasets.load_svmlight_file.html

Field Summary

Fields inherited from class org.datavec.api.records.writer.impl.misc.SVMLightRecordWriter

FEATURE_FIRST_COLUMN, FEATURE_LAST_COLUMN, featureFirstColumn, featureLastColumn, HAS_LABELS, hasLabel, LABEL_FIRST_COLUMN, LABEL_LAST_COLUMN, labelFirstColumn, labelLastColumn, multilabel, MULTILABEL, NAME_SPACE, UNLABELED, ZERO_BASED_INDEXING, ZERO_BASED_LABEL_INDEXING, zeroBasedIndexing, zeroBasedLabelIndexing

Fields inherited from class org.datavec.api.records.writer.impl.FileRecordWriter

conf, DEFAULT_CHARSET, encoding, NEW_LINE, out, PATH, writeTo

Fields inherited from interface org.datavec.api.records.writer.RecordWriter

APPEND

Constructor Summary

Constructors

Constructor and Description
LibSvmRecordWriter()
LibSvmRecordWriter(Configuration conf)
LibSvmRecordWriter(File path)
LibSvmRecordWriter(File path, boolean append)

Method Summary

Modifier and Type	Method and Description
void	setConf(Configuration conf) Set DataVec configuration

Methods inherited from class org.datavec.api.records.writer.impl.misc.SVMLightRecordWriter

write

Methods inherited from class org.datavec.api.records.writer.impl.FileRecordWriter

close, getConf

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LibSvmRecordWriter

public LibSvmRecordWriter()

LibSvmRecordWriter

public LibSvmRecordWriter(File path)
                   throws FileNotFoundException

Throws:

FileNotFoundException

LibSvmRecordWriter

public LibSvmRecordWriter(File path,
                          boolean append)
                   throws FileNotFoundException

Throws:

FileNotFoundException

LibSvmRecordWriter

public LibSvmRecordWriter(Configuration conf)
                   throws FileNotFoundException

Throws:

FileNotFoundException

Method Detail

setConf

public void setConf(Configuration conf)

Description copied from class: SVMLightRecordWriter

Set DataVec configuration

Specified by:

setConf in interface Configurable

Overrides:

setConf in class SVMLightRecordWriter