public final int getCategoricalIdFromInteraction(int cid, int val) {
InteractionWrappedVec v;
if ((v = (InteractionWrappedVec) _adaptedFrame.vec(cid)).isCategorical())
return getCategoricalId(cid, val);
assert v.domains() != null
: "No domain levels found for interactions! cid: " + cid + " val: " + val;
if (val >= _numOffsets[cid + 1]) { // previously unseen interaction (aka new domain level)
assert _valid
: "interaction value out of bounds, got "
+ val
+ ", next cat starts at "
+ _numOffsets[cid + 1];
val = v.mode();
}
return val < 0 ? -1 : val + _numOffsets[cid];
}
