Struct NumericHistogram 

pub struct NumericHistogram { /* private fields */ }

Bounded reservoir of float64 samples for response field statistics.

Fills up to max_samples, then applies Vitter’s Algorithm R reservoir sampling so the retained set remains a uniform random sample of all observed values.

Uses SmallRng (a Send-safe PRNG) seeded from entropy at construction time, so instances can be sent across threads (e.g. moved into drain tasks).

Implementations

impl NumericHistogram

pub fn new(params: NumericHistogramParams) -> Self

Creates a new histogram with the given parameters.

pub fn record(&mut self, value: f64)

Records a single float value.

pub fn distribution(&self) -> Distribution

Returns a sorted Distribution over the retained samples.

pub fn is_empty(&self) -> bool

Returns true if no values have been recorded.

pub fn total_seen(&self) -> usize

Returns the total number of values observed (including those not retained).