| SZaru::TopEstimator< Value >::Elem | Combination of a value & weight |
| SZaru::QuantileEstimator< Key > | Approximate N-tiles for data items from an ordered domain |
| SZaru::TopEstimator< Value > | Statistical samplings that record the 'top N' data items |
| SZaru::UniqueEstimator | Statistical estimators for the total number of unique data items |
1.6.3