/**
* Compute the number of all possible conditions that could appear in a rule of a given data. For
* nominal attributes, it's the number of values that could appear; for numeric attributes, it's
* the number of values * 2, i.e. <= and >= are counted as different possible conditions.
*
* @return number of all conditions of the data
*/
public double numAllConditions() {
double total = 0;
for (int i = 0; i < Attributes.getInputNumAttributes(); i++) {
Attribute att = Attributes.getInputAttribute(i);
if (att.getType() == Attribute.NOMINAL) total += (double) att.getNumNominalValues();
else total += 2.0 * (double) numDistinctValues(i);
}
return total;
}
/**
* Compute the number of all possible conditions that could appear in a rule of a given data. For
* nominal attributes, it's the number of values that could appear; for numeric attributes, it's
* the number of values * 2, i.e. <= and >= are counted as different possible conditions.
*
* @param attIndex the attribute' index
* @return number of all conditions of the data
*/
public double numAllConditions(int attIndex) {
Attribute att = Attributes.getInputAttribute(attIndex);
if (att.getType() == Attribute.NOMINAL) return (double) att.getNumNominalValues();
else return 2.0 * (double) numDistinctValues(attIndex);
}
/** Function to stores header of a data file. */
private void readHeader() {
String attributeName;
Vector attributeValues;
int i;
name = Attributes.getRelationName();
// Create vectors to hold information temporarily.
attributes = new Vector();
Attribute at;
// store attribute inputs and of the header
for (int j = 0; j < Attributes.getInputNumAttributes(); j++) {
at = Attributes.getInputAttribute(j);
attributeName = at.getName();
// check if it is real
if (at.getType() == 2) {
float min = (float) at.getMinAttribute();
float max = (float) at.getMinAttribute();
attributes.addElement(new MyAttribute(attributeName, j));
MyAttribute att = (MyAttribute) attributes.elementAt(j);
att.setRange(min, max);
att.activate();
} else {
if (at.getType() == 1) // check if it is integer
{
int min = (int) at.getMinAttribute();
int max = (int) at.getMinAttribute();
attributes.addElement(new MyAttribute(attributeName, j));
MyAttribute att = (MyAttribute) attributes.elementAt(j);
att.setRange(min, max);
att.activate();
} else // it is nominal
{
attributeValues = new Vector();
for (int k = 0; k < at.getNumNominalValues(); k++) {
attributeValues.addElement(at.getNominalValue(k));
}
attributes.addElement(new MyAttribute(attributeName, attributeValues, j));
MyAttribute att = (MyAttribute) attributes.elementAt(j);
att.activate();
}
}
} // for
// store outputs of the header
at = Attributes.getOutputAttribute(0);
attributeName = at.getName();
int j = Attributes.getNumAttributes() - 1;
// check if it is real
if (at.getType() == 2) {
float min = (float) at.getMinAttribute();
float max = (float) at.getMinAttribute();
attributes.addElement(new MyAttribute(attributeName, j));
MyAttribute att = (MyAttribute) attributes.elementAt(j);
att.setRange(min, max);
att.activate();
} else {
if (at.getType() == 1) // check if it is integer
{
int min = (int) at.getMinAttribute();
int max = (int) at.getMinAttribute();
attributes.addElement(new MyAttribute(attributeName, j));
MyAttribute att = (MyAttribute) attributes.elementAt(j);
att.setRange(min, max);
att.activate();
} else // it is nominal
{
attributeValues = new Vector();
for (int k = 0; k < at.getNumNominalValues(); k++) {
attributeValues.addElement(at.getNominalValue(k));
}
attributes.addElement(new MyAttribute(attributeName, attributeValues, j));
MyAttribute att = (MyAttribute) attributes.elementAt(j);
att.activate();
}
}
// set the index of the output class
classIndex = Attributes.getNumAttributes() - 1;
}
