com.rapidminer.example.set
Class ShuffledPartitionBuilder

java.lang.Object
  com.rapidminer.example.set.SimplePartitionBuilder
      com.rapidminer.example.set.ShuffledPartitionBuilder

All Implemented Interfaces:

PartitionBuilder

public class ShuffledPartitionBuilder
extends SimplePartitionBuilder

Creates a shuffled partition for an example set. This implementation traverses the partition backwards, from the last element up to the second, repeatedly swapping a randomly selected element into the "current position". Elements are randomly selected from the portion of the list that runs from the first element to the current position, inclusive.

Author:

Ingo Mierswa

Constructor Summary

ShuffledPartitionBuilder(boolean useLocalRandomSeed, int seed)

Method Summary

int[]

createPartition(double[] ratio, int size) Returns a shuffled partition for an example set.

Methods inherited from class java.lang.Object

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

Constructor Detail

ShuffledPartitionBuilder

public ShuffledPartitionBuilder(boolean useLocalRandomSeed,
                                int seed)

Method Detail

createPartition

public int[] createPartition(double[] ratio,
                             int size)

Returns a shuffled partition for an example set. Uses the partition delivered by the superclass and shuffles the elements.

Specified by:

createPartition in interface PartitionBuilder

Overrides:

createPartition in class SimplePartitionBuilder