@Override
public RealVector computeSyntheticValues(SampleIterator it) {
it.reset();
Sample sample = it.next();
int inputDim = sample.getEncodedInput().getDimension();
int outputDim = sample.getEncodedOutput().getDimension();
RealVector v = new ArrayRealVector(outputDim);
for (int out = 0; out < outputDim; out++) {
it.reset();
double eta = generalizedCorrelationRatio(it, inputDim, out);
if (eta < 0) return null;
v.setEntry(out, eta);
}
return v;
}
@Override
public RealMatrix computeIOCorrelationMatrix(SampleIterator it) {
it.reset();
Sample sample = it.next();
int inputDim = sample.getEncodedInput().getDimension();
int outputDim = sample.getEncodedOutput().getDimension();
RealMatrix M = new Array2DRowRealMatrix(inputDim, outputDim);
for (int i = 0; i < inputDim; i++) {
for (int j = 0; j < outputDim; j++) {
it.reset();
M.setEntry(i, j, correlationRatio(it, i, j));
}
}
return M;
}
