protected ItemSet <T> Union(ItemSet <T> is1, ItemSet <T> is2)
{
ItemSet <T> c = is1.Clone();
c.Add(is2[is2.Count - 1]);
foreach (long id2 in is2.TransactionIDList)
{
bool isFound = false;
foreach (long id1 in is1.TransactionIDList)
{
if (id1 == id2)
{
isFound = true;
break;
}
}
if (isFound)
{
c.TransactionIDList.Add(id2);
}
}
return(c);
}
private int Mine(FPTree fpTree, ItemSet anItemSet)
{
int minedItemSets = 0;
FPTree projectedTree;
projectedTree = fpTree.Project(anItemSet.GetLastItem());
minedItemSets = projectedTree.FrequentItems.Count;
foreach (Item anItem in projectedTree.FrequentItems)
{
ItemSet nextItemSet = anItemSet.Clone();
nextItemSet.AddItem(anItem);
minedItemSets += Mine(projectedTree, nextItemSet);
}
return(minedItemSets);
}
public void TestResultSet()
{
List<MyPoint> set1 = new List<MyPoint>();
set1.Add(new MyPoint(0, 0));
set1.Add(new MyPoint(1, 1));
set1.Add(new MyPoint(2, 2));
set1.Add(new MyPoint(5, 0));
set1.Add(new MyPoint(6, 1));
set1.Add(new MyPoint(7, 2));
ItemSet iSet1 = new ItemSet();
ItemSet iSet2 = new ItemSet();
iSet1.Add(0);
iSet1.Add(2);
iSet1.Add(4);
iSet2.Add(1);
iSet2.Add(3);
iSet2.Add(5);
Results2 r2 = new Results2();
r2.AddResult(iSet1.GetIndices());
Results2 r3 = r2.Clone();
r3.AddResult(iSet2.GetIndices());
Assert.AreEqual(2, r3.Count);
Assert.AreEqual(1, r2.Count);
ItemSet iSet3 = iSet1.Clone();
iSet3.Add(1);
iSet3.Add(3);
iSet3.Add(5);
Assert.AreEqual(3, iSet1.Count);
Assert.AreEqual(6, iSet3.Count);
}
public void SpeedTest2()
{
ItemSet seta = new ItemSet();
seta.SetUp(10);
for (int i = 0; i < 100000; ++i)
{
MyList<MyPoint> set1 = new MyList<MyPoint>();
set1.Add(new MyPoint(1, 6));
set1.Add(new MyPoint(2, 6));
set1.Add(new MyPoint(5, 6));
set1.Add(new MyPoint(3, 6));
set1.Add(new MyPoint(2, 5));
set1.Add(new MyPoint(3, 5));
set1.Add(new MyPoint(5, 5));
set1.Add(new MyPoint(3, 4));
set1.Add(new MyPoint(3, 7));
set1.Add(new MyPoint(6, 4));
ItemSet workSet = seta.Clone();
ItemSet currentLine = new ItemSet();
currentLine.Add(0);
currentLine.Add(1);
LineParams par = new LineParams(set1[0], set1[1]);
workSet.RemoveAt(0);
workSet.RemoveAt(1);
for (int k = 0; k < workSet.Count; ++k)
{
int id = workSet.GetItemIndex(k);
if (par.IsCollinear(set1[id]))
{
currentLine.Add(id);
workSet.RemoveAt(id);
}
}
}
}