public MultivariatMean(
Set<? extends Person> refPersons,
Set<CachedPerson> simPersons,
String xAttrKey,
String yAttrKey,
Discretizer xDataDiscr) {
this.xDataKey = Converters.getObjectKey(xAttrKey);
this.yDataKey = Converters.getObjectKey(yAttrKey);
this.xDataDiscr = xDataDiscr;
initReferenceValues(refPersons, xAttrKey, yAttrKey);
initSimulationValues(simPersons, xAttrKey, yAttrKey);
// Calculate the initial hamiltonian value.
hamiltonianValue = 0;
int size = Math.max(referenceValues.size(), bucketCounts.size());
for (int i = 0; i < size; i++) {
hamiltonianValue += calculateDiff(i);
}
}
@Override
public void onChange(Object dataKey, Object oldValue, Object newValue, CachedElement person) {
if (this.dataKey == null) this.dataKey = Converters.getObjectKey(attrKey);
if (this.dataKey.equals(dataKey)) {
int bucket = discretizer.index((Double) oldValue);
double diff1 = changeBucketContent(bucket, -1);
bucket = discretizer.index((Double) newValue);
double diff2 = changeBucketContent(bucket, 1);
hamiltonianValue += (diff1 + diff2) / normFactor;
}
}