}
else {
positive = new Pair<Double, Double>(0., 1. / outlierIds.size());
negative = new Pair<Double, Double>(1. / (ids.size() - outlierIds.size()), 0.);
}
ids.removeDBIDs(outlierIds);
// fill histogram with values of each object
for(DBID id : ids) {
double result = or.getScores().get(id);
result = scaling.getScaled(result);
hist.aggregate(result, negative);