A HyperLogLog implementation in Rust, with bias correction.
Installation: use Cargo:
[dependencies]
hyperloglog = "~0"
Usage:
let mut hll = HyperLogLog::new(error_rate);
hll.insert(&"test1");
hll.insert(&"test2");
let card_estimation = hll.len();
let mut hll2 = HyperLogLog::new_from_template(&hll);
hll2.insert(&"test3");
hll.merge(&hll2);