Struct HyperLogLog 

pub struct HyperLogLog { /* private fields */ }

HyperLogLog implementation for cardinality estimation

Implementations

impl HyperLogLog

pub fn new(precision: u8) -> Result<Self, HllError>

Create a new HyperLogLog with given precision Precision must be between 4 and 16

pub fn add<T: Hash>(&mut self, element: &T)

Add an element to the HyperLogLog

pub fn add_str(&mut self, element: &str)

Add a raw string element (for Redis compatibility)

pub fn count(&self) -> u64

Estimate cardinality

pub fn merge(&mut self, other: &HyperLogLog) -> Result<(), HllError>

Merge another HyperLogLog into this one

pub fn precision(&self) -> u8

Get precision

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.

impl<'de> Deserialize<'de> for HyperLogLog

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for HyperLogLog

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.