private static int determineNext(
List<TransitionTable> frontier, IntSet remainingVariableIds, int countPerSplit) {
double maxEntropy = -Double.MAX_VALUE;
int maxVariable = remainingVariableIds.iterator().nextInt();
for (int variable : remainingVariableIds) {
double entropy = frontierEntropy(frontier, variable, countPerSplit);
if (entropy > maxEntropy) {
maxEntropy = entropy;
maxVariable = variable;
}
}
return maxVariable;
}
