/**
* Constructor to copy all the attributes of another dataset but the itemsets.
*
* @param dataset The dataset to be copied.
* @param capacity The number of itemsets.
*/
public MyDataset(MyDataset dataset, int capacity) {
if (capacity < 0) capacity = 0;
classIndex = dataset.classIndex;
name = dataset.getName();
attributes = dataset.attributes;
itemsets = new Vector(capacity);
totalCond = dataset.totalCond;
}
/**
* Constructor that copies another dataset.
*
* @param dataset The dataset to be copied.
*/
public MyDataset(MyDataset dataset) {
this(dataset, dataset.numItemsets());
dataset.copyItemsets(0, this, dataset.numItemsets());
totalCond = dataset.totalCond;
}
/**
* Function to add the instances of one set to the end of another.
*
* @param from The index of the first that is going to be copied.
* @param dest The dataset where the itemsets are going to be copied.
* @param num The number of itemsets to copy.
*/
private void copyItemsets(int from, MyDataset dest, int num) {
for (int i = 0; i < num; i++) dest.addItemset(itemset(from + i));
}