| array_of_doubles | Array of Doubles (Tuple) sketch for estimating sums alongside distinct counts |
| array_of_doubles_difference | Array of Doubles sketch set operations |
| array_of_doubles_intersection | Array of Doubles sketch set operations |
| array_of_doubles_set_operations | Array of Doubles sketch set operations |
| array_of_doubles_union | Array of Doubles sketch set operations |
| bloom_filter | Bloom filter for approximate set membership |
| bloom_filter_suggest | Suggest Bloom filter sizing parameters |
| bloom_filter_suggest_num_filter_bits | Suggest Bloom filter sizing parameters |
| bloom_filter_suggest_num_hashes | Suggest Bloom filter sizing parameters |
| count_min | Count-Min sketch for approximate point-frequency estimation |
| count_min_suggest | Suggest Count-Min sketch parameters |
| count_min_suggest_num_buckets | Suggest Count-Min sketch parameters |
| count_min_suggest_num_hashes | Suggest Count-Min sketch parameters |
| cpc | CPC sketch for approximate distinct counting |
| ebpps | EBPPS sketch for proportional-to-size sampling |
| frequent_items | Frequent Items sketch for approximate frequency estimation |
| hll | HLL sketch for approximate distinct counting |
| kll_doubles | KLL sketch for approximate quantiles of a numeric stream |
| kll_floats | KLL sketch for approximate quantiles of a numeric stream stored as floats |
| req | REQ sketch for relative-error approximate quantiles of a numeric stream |
| tdigest_double | t-Digest sketch for approximate quantiles of a numeric stream |
| theta | Theta sketch for approximate distinct counting and set operations |
| theta_difference | Theta sketch set operations |
| theta_intersection | Theta sketch set operations |
| theta_jaccard | Theta sketch set operations |
| theta_set_operations | Theta sketch set operations |
| theta_union | Theta sketch set operations |
| varopt | VarOpt sketch for variance-optimal sampling and subset-sum estimation |
| varopt_union | Combine two VarOpt sketches |