public double getSVarS(ClusAttributeWeights scale) {
double result = 0.0;
for (int i = 0; i < m_NbAttrs; i++) {
double n_tot = m_SumWeight;
double sv_tot = m_SumValues[i];
result += (sv_tot - sv_tot * sv_tot / n_tot) * scale.getWeight(m_Attrs[i]);
}
return result / m_NbAttrs;
}
public double getSVarSDiff(ClusAttributeWeights scale, ClusStatistic other) {
double result = 0.0;
RegressionStatBinaryNomiss or = (RegressionStatBinaryNomiss) other;
for (int i = 0; i < m_NbAttrs; i++) {
double n_tot = m_SumWeight - or.m_SumWeight;
double sv_tot = m_SumValues[i] - or.m_SumValues[i];
result += (sv_tot - sv_tot * sv_tot / n_tot) * scale.getWeight(m_Attrs[i]);
}
return result / m_NbAttrs;
}