Struct PostAggregation 

pub struct PostAggregation<F, R> { /* private fields */ }

Post-aggregation transform.

A post-aggregation composes a Statistic and arbitrarily maps its aggregation. For example, a transform may discretize the continuous aggregation of a statistic.

Implementations

impl<F, R> PostAggregation<F, R>

pub fn with(statistic: F, transform: R) -> Self

pub fn from_transform(transform: R) -> Self

where F: Default,

Constructs a PostAggregation from a transform function.

The default statistic is composed.

Trait Implementations

impl<F: Clone, R: Clone> Clone for PostAggregation<F, R>

fn clone(&self) -> PostAggregation<F, R>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<F: Debug, R: Debug> Debug for PostAggregation<F, R>

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

Formats the value using the given formatter.

impl<A, F, R> Statistic for PostAggregation<F, R>

where F: Statistic, R: Clone + Fn(F::Aggregation) -> A, A: Clone,

type Semantic = <F as Statistic>::Semantic

The type of data semantic associated with samples.

type Sample = <F as Statistic>::Sample

The type of samples.

type Aggregation = A

The type of the statistical aggregation.

fn fold(&mut self, sample: F::Sample) -> Result<(), FoldError>

Folds a sample into the aggregation of the statistic.

fn fill(&mut self, sample: F::Sample, n: NonZeroUsize) -> Result<(), FoldError>

Folds a sample into the aggregation of a statistic n (one or more) times.

fn reset(&mut self)

Resets the state (and aggregation) of the statistic.

fn aggregation(&self) -> Option<Self::Aggregation>

Gets the statistical aggregation.

impl<F: Copy, R: Copy> Copy for PostAggregation<F, R>