@Override
public MultiDouble getSplittedValue(IRow row) {
if (cacheMulti.containsKey(row.getIndex())) return (MultiDouble) cacheMulti.get(row.getIndex());
double[] s = new double[this.size()];
for (int i = 0; i < s.length; ++i) {
s[i] = ((IDoubleRankableColumnMixin) get(i)).applyPrimitive(row);
}
MultiDouble f = new MultiDouble(-1, s);
cacheMulti.put(row.getIndex(), f);
return f;
}
