/**
* Function to check if the antecedent of our itemset is equal to another given
*
* @param a Itemset which antecedents we are going to compare with ours
* @return boolean true = they are equal, false = they aren't.
*/
public boolean isEqualAnt(Itemset a) {
int i;
Item item;
if (this.itemset.size() != a.size()) return (false);
for (i = 0; i < this.itemset.size(); i++) {
item = this.itemset.get(i);
if (!item.isEqual(a.get(i))) return (false);
}
return (true);
}
/** Clone function */
public Itemset clone() {
Itemset d = new Itemset(this.clas);
for (int i = 0; i < this.itemset.size(); i++) d.add((itemset.get(i)).clone());
d.clas = this.clas;
d.support = this.support;
d.supportRule = this.supportRule;
d.per = this.per;
d.hits = this.hits;
d.misses = this.misses;
return (d);
}
/**
* Function to check if our itemset is Subitemset (can be contained) of a given itemset
*
* @param a Itemset to check if can contain ours
* @return boolean true = our itemset is subitemset of a, false = it isn't.
*/
public boolean isSubItemset(Itemset a) {
int i, j;
Item itemi, itemj;
boolean stop;
if (this.clas != a.getClas()) return (false);
for (i = 0; i < this.itemset.size(); i++) {
itemi = this.itemset.get(i);
stop = false;
for (j = 0; j < a.itemset.size() && !stop; j++) {
itemj = a.itemset.get(j);
if (itemi.isEqual(itemj)) stop = true;
else if (itemj.getVariable() >= itemi.getVariable()) return (false);
}
if (!stop) return (false);
}
return (true);
}