public class Database
extends java.lang.Object
implements java.lang.Iterable<java.util.Set<com.rapidminer.operator.learner.associations.Item>>
Constructor and Description |
---|
Database(com.rapidminer.example.ExampleSet exampleSet)
Constructs a database.
|
Modifier and Type | Method and Description |
---|---|
int |
getFrequency(java.util.Set<com.rapidminer.operator.learner.associations.Item> transaction)
Returns how often a specialized transaction is contained inside the
database.
|
java.util.Set<com.rapidminer.operator.learner.associations.Item> |
getItems()
Returns the contained items.
|
int |
getNumberOfStoredItems()
Returns the number of stored items in this database.
|
int |
getNumberOfTransactions()
Returns the number of transactions inside this database.
|
com.rapidminer.operator.learner.associations.FrequentItemSet |
getThisItems(com.rapidminer.operator.learner.associations.FrequentItemSet freqItemSet)
Hilfsmethode um dem dummen Fehler zu umgehen..
|
java.util.Iterator<java.util.Set<com.rapidminer.operator.learner.associations.Item>> |
iterator() |
java.lang.String |
toString() |
public Database(com.rapidminer.example.ExampleSet exampleSet)
exampleSet
- an exampleSet
of boolean attributes, which builds the database
public int getNumberOfStoredItems()
public java.util.Set<com.rapidminer.operator.learner.associations.Item> getItems()
public com.rapidminer.operator.learner.associations.FrequentItemSet getThisItems(com.rapidminer.operator.learner.associations.FrequentItemSet freqItemSet)
itemSet
- public java.util.Iterator<java.util.Set<com.rapidminer.operator.learner.associations.Item>> iterator()
iterator
in interface java.lang.Iterable<java.util.Set<com.rapidminer.operator.learner.associations.Item>>
public int getNumberOfTransactions()
public int getFrequency(java.util.Set<com.rapidminer.operator.learner.associations.Item> transaction)
transaction
- the transaction whose number of occurrences is determinedpublic java.lang.String toString()
toString
in class java.lang.Object
Copyright © 2001-2009 by Rapid-I