@Override
public void updateValue(int index, double value) {
checkElementIndex(index, numRows);
w.put(index, w.contains(index) ? (value + w.get(index)) : value);
if (VectorUtils.floatingPointEquals(w.get(index), 0)) w.remove(index);
}
@Override
public void initW(double param) {
w = new TIntDoubleHashMap();
if (!VectorUtils.floatingPointEquals(0, param))
for (int i = 0; i < numRows; i++) w.put(i, param);
}
@Override
public void resetValue(int index, double value) {
checkElementIndex(index, numRows);
if (!VectorUtils.floatingPointEquals(value, 0)) w.put(index, value);
else w.remove(index);
}