Struct MinHashSketch 

pub struct MinHashSketch { /* private fields */ }

A sample of distinct keys chosen by hash, along with how often each key occurred. Whether a key is sampled does not depend on how often it occurs.

Implementations

impl MinHashSketch

pub fn new() -> Self

pub fn insert(&mut self, h: u64)

Add a new hash to the sketch.

pub fn combine(&mut self, other: &MinHashSketch)

pub fn key_ratio(&self) -> Option<f64>

Estimates the number of distinct keys as a fraction of the number of rows, weighting each distinct key equally.

Trait Implementations

impl Clone for MinHashSketch

fn clone(&self) -> MinHashSketch

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for MinHashSketch

fn default() -> Self

Returns the “default value” for a type.