/**
* Checks weather values of a target attribute are significantly different
*
* @return
*/
public boolean targetSignDifferent() {
boolean res = false;
int att = -1;
String att_name;
String att_name2;
ClusStatistic targetStat = m_StatManager.getStatistic(ClusAttrType.ATTR_USE_TARGET);
if (targetStat instanceof ClassificationStat) {
for (int i = 0; i < targetStat.getNbNominalAttributes(); i++) {
att_name = ((ClassificationStat) targetStat).getAttribute(i).getName();
for (int j = 0; j < m_ClassStat.getNbNominalAttributes(); j++) {
att_name2 = m_ClassStat.getAttribute(j).getName();
if (att_name.equals(att_name2)) {
att = j;
break;
}
}
if (SignDifferentNom(att)) {
res = true;
break; // TODO: If one target att significant, the whole rule significant!?
}
}
// System.out.println("Target sign. testing: " + res);
return res;
} else if (targetStat instanceof RegressionStat) {
for (int i = 0; i < targetStat.getNbNumericAttributes(); i++) {
att_name = ((RegressionStat) targetStat).getAttribute(i).getName();
for (int j = 0; j < m_RegStat.getNbNumericAttributes(); j++) {
att_name2 = m_RegStat.getAttribute(j).getName();
if (att_name.equals(att_name2)) {
att = j;
break;
}
}
try {
if (SignDifferentNum(att)) {
res = true;
break; // TODO: If one target att significant, the whole rule significant!?
}
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (MathException e) {
e.printStackTrace();
}
}
return res;
} else {
// TODO: Classification and regression
return true;
}
}
/** Returns a number of attributes with significantly different distributions */
public int signDifferent() {
int sign_diff = 0;
// Nominal attributes
for (int i = 0; i < m_ClassStat.getNbAttributes(); i++) {
if (SignDifferentNom(i)) {
sign_diff++;
}
}
// Numeric attributes
for (int i = 0; i < m_RegStat.getNbAttributes(); i++) {
try {
if (SignDifferentNum(i)) {
sign_diff++;
}
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (MathException e) {
e.printStackTrace();
}
}
System.out.println("Nb.sig.atts: " + sign_diff);
return sign_diff;
}