/**
* Get the number of items in this pattern. Note that if an item appear twice, it will be counted
* twice.
*
* @return the number of items
*/
public int getItemOccurencesTotalCount() {
int count = 0;
// for each itemset
for (Itemset itemset : itemsets) {
// add the size of this itemset
count += itemset.size();
}
return count; // return the total size.
}
/**
* Make a copy of this sequential pattern
*
* @return the copy.
*/
public SequentialPattern cloneSequence() {
// create a new empty sequential pattenr
SequentialPattern sequence = new SequentialPattern();
// for each itemset
for (Itemset itemset : itemsets) {
// make a copy and add it
sequence.addItemset(itemset.cloneItemSet());
}
return sequence; // return the copy
}
/** Get a string representation of this sequential pattern. */
public String itemsetsToString() {
StringBuffer r = new StringBuffer("");
for (Itemset itemset : itemsets) {
r.append('{');
for (Integer item : itemset.getItems()) {
String string = item.toString();
r.append(string);
r.append(' ');
}
r.append('}');
}
return r.append(" ").toString();
}
/**
* Get a string representation of this sequential pattern, containing the sequence IDs of sequence
* containing this pattern.
*/
public String toString() {
StringBuffer r = new StringBuffer("");
// For each itemset in this sequential pattern
for (Itemset itemset : itemsets) {
r.append('('); // begining of an itemset
// For each item in the current itemset
for (Integer item : itemset.getItems()) {
String string = item.toString();
r.append(string); // append the item
r.append(' ');
}
r.append(')'); // end of an itemset
}
// add the list of sequence IDs that contains this pattern.
if (getSequencesID() != null) {
r.append(" Sequence ID: ");
for (Integer id : getSequencesID()) {
r.append(id);
r.append(' ');
}
}
return r.append(" ").toString();
}