private void populateSeqPairs(ItemPairsCount seqPairs, string[] seq)
{
for (int i = 0; i < seq.Count() - 1; i++)
{
ItemPair pair = new ItemPair(seq[i], seq[i + 1]);
seqPairs.addPair(pair);
}
}
private void populateAllPairs(ItemPairsCount allPairs, string[] seq)
{
string[] distinctSeq = seq.Distinct().ToArray();
for (int i = 0; i < distinctSeq.Count() - 1; i++)
{
for (int j = i + 1; j < distinctSeq.Count(); j++)
{
ItemPair pair = seq[i].CompareTo(seq[j]) < 0 ? new ItemPair(seq[i], seq[j]) : new ItemPair(seq[j], seq[i]);
allPairs.addPair(pair);
}
}
}
public void TrainCpModel()
{
ItemPairsCount allPairs = new ItemPairsCount();
ItemsCounts allCounts = new ItemsCounts();
if (trainSet == null)
{
throw new NullReferenceException("train set must be initialize first");
}
foreach (var session in trainSet)
{
populateAllPairs(allPairs, session);
populateAllCounts(allCounts, session);
}
items.addAllPairs(allPairs);
items.addAllCount(allCounts);
}