/**
* Function to read an itemset and appends it to the dataset.
*
* @return True if the itemset was readed succesfully.
*/
private boolean getItemsetFull() {
// fill itemset
for (int j = 0; j < IS.getNumInstances(); j++) {
double[] itemset = new double[Attributes.getNumAttributes()];
int index;
// Get values for all input attributes.
for (int i = 0; i < Attributes.getInputNumAttributes(); i++) {
// check type and if there is null
if (IS.getInstance(j).getInputMissingValues(i)) itemset[i] = Itemset.getMissingValue();
else {
if (Attributes.getInputAttribute(i).getType() == 0) // nominal
{
for (int k = 0; k < Attributes.getInputAttribute(i).getNumNominalValues(); k++)
if (Attributes.getInputAttribute(i)
.getNominalValue(k)
.equals(IS.getInstance(j).getInputNominalValues(i))) itemset[i] = (double) k;
} else // real and integer
{
itemset[i] = IS.getInstance(j).getInputRealValues(i);
}
} // else
} // for
// Get values for output attribute.
int i = Attributes.getInputNumAttributes();
// check type and if there is null
if (IS.getInstance(j).getOutputMissingValues(0)) itemset[i] = Itemset.getMissingValue();
else {
if (Attributes.getOutputAttribute(0).getType() == 0) // nominal
{
for (int k = 0; k < Attributes.getOutputAttribute(0).getNumNominalValues(); k++)
if (Attributes.getOutputAttribute(0)
.getNominalValue(k)
.equals(IS.getInstance(j).getOutputNominalValues(0))) itemset[i] = (double) k;
} else // real and integer
{
itemset[i] = IS.getInstance(j).getOutputRealValues(0);
}
} // else
// Add itemset to dataset
addItemset(new Itemset(1, itemset));
} // for
return true;
}
/**
* Function to add one itemset.
*
* @param itemset The itemset to add to the dataset.
*/
public final void addItemset(Itemset itemset) {
Itemset newItemset = (Itemset) itemset.copy();
newItemset.setDataset(this);
itemsets.addElement(newItemset);
}