org.apache.spark.mllib.fpm

Class PrefixSpanModel<Item>

java.lang.Object

org.apache.spark.mllib.fpm.PrefixSpanModel<Item>

All Implemented Interfaces:

java.io.Serializable, Saveable

public class PrefixSpanModel<Item>
extends java.lang.Object
implements Saveable, scala.Serializable

Model fitted by PrefixSpan param: freqSequences frequent sequences

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PrefixSpanModel.SaveLoadV1_0$

Constructor Summary

Constructors

Constructor and Description
PrefixSpanModel(RDD<PrefixSpan.FreqSequence<Item>> freqSequences)

Method Summary

Methods

Modifier and Type	Method and Description
protected java.lang.String	formatVersion() Current version of model save/load format.
RDD<PrefixSpan.FreqSequence<Item>>	freqSequences()
static PrefixSpanModel<?>	load(SparkContext sc, java.lang.String path)
void	save(SparkContext sc, java.lang.String path) Save this model to the given path.

Methods inherited from class java.lang.Object

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

Constructor Detail

PrefixSpanModel

public PrefixSpanModel(RDD<PrefixSpan.FreqSequence<Item>> freqSequences)

Method Detail

load

public static PrefixSpanModel<?> load(SparkContext sc,
                      java.lang.String path)

freqSequences

public RDD<PrefixSpan.FreqSequence<Item>> freqSequences()

save

public void save(SparkContext sc,
        java.lang.String path)

Save this model to the given path. It only works for Item datatypes supported by DataFrames.

This saves: - human-readable (JSON) model metadata to path/metadata/ - Parquet formatted data to path/data/

The model may be loaded using PrefixSpanModel.load.

Specified by:

save in interface Saveable

Parameters:

sc - Spark context used to save model data.

path - Path specifying the directory in which to save this model. If the directory already exists, this method throws an exception.

formatVersion

protected java.lang.String formatVersion()

Description copied from interface: Saveable

Current version of model save/load format.

Specified by:

formatVersion in interface Saveable