Enum ReducerKind 

pub enum ReducerKind {
    Final,
    Min,
    Max,
    Mean,
    ArgMax,
    ArgMin,
    FirstCrossing(Comparison),
    WindowMean {
        start: u64,
        end: u64,
    },
}

Fold a reducer applies to its column’s samples.

Variants

Final

Last finite sampled value.

Min

Least finite sampled value.

Max

Greatest finite sampled value.

Mean

Mean of the finite sampled values.

ArgMax

First sampled tick of the greatest value.

ArgMin

First sampled tick of the least value.

FirstCrossing(Comparison)

First sampled tick whose value passes the comparison, empty when no sample passes.

WindowMean

Mean of the samples from tick start to tick end inclusive.

Fields

start: u64

First tick of the window.

end: u64

Last tick of the window.

Implementations

impl ReducerKind

pub const DEFAULTS: [Self; 4]

Kinds every column other than a histogram bucket gets by default.

Trait Implementations

impl Clone for ReducerKind

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ReducerKind

impl Debug for ReducerKind

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

Formats the value using the given formatter.

impl Display for ReducerKind

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

Formats the value using the given formatter.

impl FromStr for ReducerKind

fn from_str(raw: &str) -> Result<Self, Self::Err>

Reads a kind as ReducerKind’s Display writes it.

type Err = ReducerError

The associated error which can be returned from parsing.

impl PartialEq for ReducerKind

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ReducerKind