Struct datafusion_physical_expr_common::aggregate::tdigest::Centroid

pub struct Centroid { /* private fields */ }

Centroid implementation to the cluster mentioned in the paper.

Implementations

impl Centroid

pub fn new(mean: f64, weight: f64) -> Self

pub fn mean(&self) -> f64

pub fn weight(&self) -> f64

pub fn add(&mut self, sum: f64, weight: f64) -> f64

Trait Implementations

impl Clone for Centroid

fn clone(&self) -> Centroid

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Centroid

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

Formats the value using the given formatter.

impl Default for Centroid

fn default() -> Self

Returns the “default value” for a type.

impl Ord for Centroid

fn cmp(&self, other: &Centroid) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for Centroid

fn eq(&self, other: &Centroid) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Centroid

fn partial_cmp(&self, other: &Centroid) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for Centroid

impl StructuralPartialEq for Centroid