Enum Sample 

pub enum Sample {
    Stride(usize),
    Reservoir {
        size: usize,
        seed: u64,
    },
}

How TimeSeries::sample picks rows.

Variants

Stride(usize)

Every nth row: rows n - 1, 2n - 1, … (pond-ts { stride }). n must be at least 1.

Reservoir

size rows picked at random, every row equally likely (pond-ts { reservoir: { size } }, one pass of Algorithm R), kept in their order in the series. The same seed picks the same rows; pond-ts has no seed. A series of at most size rows is kept whole. size must be at least 1.

Fields

size: usize

How many rows to keep.

seed: u64

Seed for the random picks.

Trait Implementations

impl Clone for Sample

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 Sample

impl Debug for Sample

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

Formats the value using the given formatter.

impl Eq for Sample

impl PartialEq for Sample

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Sample