Enum SplitSpec 

pub enum SplitSpec {
    Full,
    Sequential {
        train: f64,
        val: f64,
        test: f64,
    },
    Hashed {
        seed: u64,
        train: f64,
        val: f64,
        test: f64,
    },
}

Variants

Full

Single full-dataset partition. Split::Train, Split::Val, and Split::Test all yield empty row vectors; only Split::Full returns rows.

Sequential

Sequential ranges by ascending row index. Train gets the first floor(nrows * train), val the next floor(nrows * val), test the next floor(nrows * test). Trailing rows are excluded.

Fields

train: f64

val: f64

test: f64

Hashed

Per-row deterministic hash assignment. Bucket = splitmix64(row as u64 ^ seed) >> 32 divided by 2^32. Same seed ⇒ identical assignment, regardless of nrows.

Fields

seed: u64

train: f64

val: f64

test: f64

Trait Implementations

impl Clone for SplitSpec

fn clone(&self) -> SplitSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SplitSpec

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

Formats the value using the given formatter.

impl PartialEq for SplitSpec

fn eq(&self, other: &SplitSpec) -> 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 StructuralPartialEq for SplitSpec