core/io.github.klient.prometheus.core/Quantiles/Sample

Sample

data class Sample(val value: Double, val delta: Int, var g: Int = 1)

Represents a single sample used in a quantile estimation algorithm.

Each sample stores a numeric value along with metadata used to approximate quantile ranks with bounded error.

Constructors

Sample

constructor(value: Double, delta: Int, g: Int = 1)

Properties

delta

val delta: Int

The maximum allowable difference between the true rank of this sample and the minimum rank it could occupy. This defines the error bound for quantile approximation.

var g: Int

The number of observations between this sample and its predecessor. Initially set to 1, but may be increased during compression steps to reduce the number of stored samples.

value

val value: Double

The observed value being sampled.

Functions

toString

open override fun toString(): String