Struct HyperLogLog 

pub struct HyperLogLog { /* private fields */ }

A HyperLogLog counter

Implementations

impl HyperLogLog

pub fn new_deterministic(error_rate: f64, seed: u128) -> Self

Create a new HyperLogLog counter with the given error rate and seed.

pub fn new(error_rate: f64) -> Self

Create a new HyperLogLog counter with the given error rate and a random seed.

pub fn new_from_template(hll: &HyperLogLog) -> Self

Create a new HyperLogLog counter with the same parameters as an existing one.

pub fn insert<V: Hash>(&mut self, value: &V)

Insert a new value into the HyperLogLog counter.

pub fn insert_by_hash_value(&mut self, x: u64)

Insert a new u64 value into the HyperLogLog counter.

pub fn len(&self) -> f64

Return the cardinality of the HyperLogLog counter.

pub fn is_empty(&self) -> bool

Return true if the HyperLogLog counter is empty.

pub fn merge(&mut self, src: &HyperLogLog)

Merge another HyperLogLog counter into the current one.

pub fn clear(&mut self)

Wipe the HyperLogLog counter.

Trait Implementations

impl Clone for HyperLogLog

fn clone(&self) -> HyperLogLog

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for HyperLogLog

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.