public void observe(Vector x, double weight) {
if (weight == 1.0) {
observe(x);
} else {
setS0(getS0() + weight);
Vector weightedX = x.times(weight);
if (getS1() == null) {
setS1(weightedX);
} else {
getS1().assign(weightedX, Functions.PLUS);
}
Vector x2 = x.times(x).times(weight);
if (getS2() == null) {
setS2(x2);
} else {
getS2().assign(x2, Functions.PLUS);
}
}
}
@Override
public void observe(VectorWritable x, double weight) {
observe(x.get(), weight);
}
@Override
public void observe(VectorWritable x) {
observe(x.get());
}