public void Example()
{
List <Transaction <char> > database = new List <Transaction <char> >();
database.Add(new Transaction <char>('a', 'c', 'd', 'e')
{
ID = 10
});
database.Add(new Transaction <char>('a', 'b', 'e')
{
ID = 20
});
database.Add(new Transaction <char>('b', 'c', 'e')
{
ID = 30
});
database.Add(new Transaction <char>('b', 'c', 'e')
{
ID = 40
});
Apriori <char> method = new Apriori <char>();
ItemSets <char> itemsets = method.MinePatterns(database, 2, new List <char>()
{
'a', 'b', 'c', 'd', 'e'
});
for (int i = 0; i < itemsets.Count; ++i)
{
ItemSet <char> itemset = itemsets[i];
Console.WriteLine(itemset);
}
}
public virtual ItemSets <MultiLevelItem <T> > MinePatterns(IEnumerable <TransactionWithMultiLevelItems <T> > database, MultiLevelItem <T> hierarchy)
{
IList <MultiLevelItem <T> > domain2 = hierarchy.Flatten();
domain2.Remove(hierarchy);
return(mMethod.MinePatterns(database,
(itemset) =>
{
double minSupport = 1;
for (int i = 0; i < itemset.Count; ++i)
{
minSupport = System.Math.Min(minSupport, itemset[i].MinSupport);
}
return minSupport;
}, domain2));
}