/**
* It substracts the instances covered by a rule from this dataset; i.e., it deactivates the
* instances covered by that rule.
*
* @param mask Mask the mask with the active entries of the dataset
* @param rule Rule the rule
*/
public void substract(Mask mask, Rule rule) {
mask.resetIndex();
while (mask.next()) {
boolean seguir = true;
for (int i = 0; i < rule.size() && seguir; i++) {
int A = rule.getSimpleRule(i).getAttribute();
double V = rule.getSimpleRule(i).getValue();
int operator = rule.getSimpleRule(i).getOperator();
if (((Itemset) itemsets.elementAt(mask.getIndex())).isMissing(A)) {
seguir = false;
} else {
if (operator == Rule.EQUAL)
seguir = (((Itemset) itemsets.elementAt(mask.getIndex())).getValue(A) == V);
if (operator == Rule.GREATER)
seguir = (((Itemset) itemsets.elementAt(mask.getIndex())).getValue(A) > V);
if (operator == Rule.LOWER)
seguir = (((Itemset) itemsets.elementAt(mask.getIndex())).getValue(A) <= V);
}
}
if (seguir) mask.reset();
}
}
/**
* It filters the instances covered by a rule from this dataset; i.e., it deactivates the
* instances not covered by that rule.
*
* @param mask Mask the mask with the active entries of the dataset
* @param rule Rule the rule
*/
public void filter(Mask mask, Rule rule) {
for (int i = 0; i < rule.size(); i++) this.filter(mask, rule.getSimpleRule(i));
}