com.rapidminer.example.table
Class RandomExampleTable

java.lang.Object
  com.rapidminer.example.table.AbstractExampleTable
      com.rapidminer.example.table.RandomExampleTable

All Implemented Interfaces:

ExampleTable, java.io.Serializable

public class RandomExampleTable
extends AbstractExampleTable

This class is used for example sets which should provide random values for the given attributes, i.e. each random value lies in the same range as values of the given attributes (min and max) of the base example set. Please note that the attributes must already have proper minimum and maximum values. The random values are constructed by a RandomDataRowReader.

Author:

Ingo Mierswa Exp $

See Also:

Serialized Form

Constructor Summary

RandomExampleTable(ExampleSet baseExampleSet, java.util.List<Attribute> attributes, int size)

Method Summary

DataRow	getDataRow(int index) Returns the i-th data row.
DataRowReader	getDataRowReader() Returns an Iterator for example data given as DataRow objects.
int	size() Returns the number of examples.

Methods inherited from class com.rapidminer.example.table.AbstractExampleTable

addAttribute, addAttributes, createExampleSet, createExampleSet, createExampleSet, createExampleSet, createExampleSet, createExampleSet, findAttribute, getAttribute, getAttributeCount, getAttributes, getNumberOfAttributes, removeAttribute, removeAttribute, toDataString, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

RandomExampleTable

public RandomExampleTable(ExampleSet baseExampleSet,
                          java.util.List<Attribute> attributes,
                          int size)

Method Detail

getDataRowReader

public DataRowReader getDataRowReader()

Description copied from interface: ExampleTable

Returns an Iterator for example data given as DataRow objects. This should be used in all cases where iteration is desired. Since ExampleTable.getDataRow(int) does not ensure to work in an efficient way the usage of this method is preferred (instead using for-loops).

getDataRow

public DataRow getDataRow(int index)

Description copied from interface: ExampleTable

Returns the i-th data row. Calling methods cannot rely on the efficiency of this method. Memory based example tables should return the data row in O(1).

size

public int size()

Description copied from interface: ExampleTable

Returns the number of examples.