Struct DDSketch 

pub struct DDSketch { /* private fields */ }

This struct represents a DDSketch

Implementations

impl DDSketch

pub fn new(config: Config) -> Self

Construct a DDSketch. Requires a Config specifying the parameters of the sketch

pub fn add(&mut self, v: f64)

Add the sample to the sketch

pub fn quantile(&self, q: f64) -> Result<Option<f64>, DDSketchError>

Return the quantile value for quantiles between 0.0 and 1.0. Result is an error, represented as DDSketchError::Quantile if the requested quantile is outside of that range.

If the sketch is empty the result is None, else Some(v) for the quantile value.

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

Returns the minimum value seen, or None if sketch is empty

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

Returns the maximum value seen, or None if sketch is empty

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

Returns the sum of values seen, or None if sketch is empty

pub fn count(&self) -> usize

Returns the number of values added to the sketch

pub fn length(&self) -> usize

Returns the length of the underlying Store. This is mainly only useful for understanding how much the sketch has grown given the inserted values.

pub fn merge(&mut self, o: &DDSketch) -> Result<(), DDSketchError>

Merge the contents of another sketch into this one. The sketch that is merged into this one is unchanged after the merge.

Trait Implementations

impl Archive for DDSketch

where Config: Archive, Store: Archive, f64: Archive, u64: Archive,

const COPY_OPTIMIZATION: CopyOptimization<Self>

An optimization flag that allows the bytes of this type to be copied directly to a writer instead of calling serialize.

type Archived = ArchivedDDSketch

The archived representation of this type.

type Resolver = DDSketchResolver

The resolver for this type. It must contain all the additional information from serializing needed to make the archived type from the normal type.

fn resolve(&self, resolver: Self::Resolver, out: Place<Self::Archived>)

Creates the archived version of this value at the given position and writes it to the given output.

impl Clone for DDSketch

fn clone(&self) -> DDSketch

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for DDSketch

fn default() -> Self

Returns the “default value” for a type.

impl<__D: Fallible + ?Sized> Deserialize<DDSketch, __D> for Archived<DDSketch>

where Config: Archive, <Config as Archive>::Archived: Deserialize<Config, __D>, Store: Archive, <Store as Archive>::Archived: Deserialize<Store, __D>, f64: Archive, <f64 as Archive>::Archived: Deserialize<f64, __D>, u64: Archive, <u64 as Archive>::Archived: Deserialize<u64, __D>,

fn deserialize( &self, deserializer: &mut __D, ) -> Result<DDSketch, <__D as Fallible>::Error>

Deserializes using the given deserializer

impl<__S: Fallible + ?Sized> Serialize<__S> for DDSketch

where Config: Serialize<__S>, Store: Serialize<__S>, f64: Serialize<__S>, u64: Serialize<__S>,

fn serialize( &self, serializer: &mut __S, ) -> Result<<Self as Archive>::Resolver, <__S as Fallible>::Error>

Writes the dependencies for the object and returns a resolver that can create the archived type.